Peavey PV 8 USB Mixer

[k1773r37f]

Howdy fellow Ubunters,

I am considering the purchase of a Peavey PV 8 USB mixer. It comes highly recommended by a musician buddy of mine. However he is not a Linux user. I need this as part of a mobile recording/live studio for my daughter. Does anybody have experience with this or any USB mixers under Linux? I need at least 4 mic/instrument channels and at least two (left/right) stereo line in channels. As well as head phones/monitors and Mains out. Also, since I will be recording to my Ubuntu Laptop, I will need to be able to record audio captured through the USB port.

Thanx,

The Killer Elf

[sgx]

if your google search finds no linux hits, but it works OK with a Mac, find one at a shop and plug it in to your laptop. Install usbview ahead of time, wine/wineasio/reaper might also be good for testing, and see whats shakin in the details :)

[k1773r37f]

I went out on a limb and purchased it. With minor fiddling with in the Audacity app I was able to record a clean audio sample using 3 of the channels.

All of the mixing has to be done on the board, wich is ok. It presents a single mono or two stereo channels to Audacity. Which is fine.

Although, all 8 channels are being presented to the USB subsystem as separate PCM devices.




Perhaps I will fiddle with JACK and see if there is away to deal with each of the eight channels separately. If so, I'll report back here. But sofar, I am pleased.

The mains are a little noisy when the USB is plugged in. But the captured sound is clean. I do have to make the mike a little hotter than usual. But if I turn down the amps volume I can control the feed back ok.

My prerecorded music levels are easy to control. That is what I was after, being able to control recorded music for a live singer and mix it all and capture the mix onto my laptop.

One thing I did note. You should uncheck everything in the Playthrough section in the Audacity Audio IO section or you will get terrible dropouts somtimes 1/4 second or more. This maybe par for the course for recording thru USB devices. This is the first time I have tried it. But unchecking these does totally aleviate the problem and the captured sound is clean.

Thanx and I will report back any new findings I have. Especailly if I manage to get each of the 8 channels to show up in Jack or Audacity.

[trulan]

If you can get it to sync with Jack, I would definitely look into using Ardour for recording rather than Audacity. It is directed much more towards handling multiple channels, whereas Audacity's thing is destructive audio editing. But you'll need to have Jack up and running for Ardour to work.

[k1773r37f]

I got this board working beautifully with alsa and jackd. On my desk top machine with a rt kernel, I do not even experience drop outs. with jack I am able to break out each of the mixing channels and assign different effects to them. The sound from the mains is clean too. I am really happy with this setup. Once I am finished tweaking, I will post my asound.conf here.

Thanx,
Kill3r37f

[robeast]

Awesome work k1773r37f! Thanks for going out on a limb and trying this out. That looks like a very capable mixer, glad to hear it is working well with Linux. Can you give us some more specifics about your computer hardware, Ubuntu version, etc?

[k1773r37f]

Lappy is a Compaq Persario V5000 AMD Turon 64 running Ubuntu Karmic vanilla 64bit 2.6.32(?) kernel. 1 GB Ram. (Room temperature right now. Can't login to get actual kernel version, relying on synaptically challenged memory)

Desktop is a home grown AMD Athalon 2.8 Ghz with 2 GB ram Ubuntu Hardy running a Real time Low latency 2.6.24-21 32 bit kernel. (posting from this machine)

The Lappy and the Peavey are my mobile studio. The desktop with the same Peavey 8 USB is my home studio. This is the one that I have modified the most to get the Peavey working most optimaly.

This machine also has an on board VIA Surround sound system. Unfortunately. tonights expiermentation lost the 8 separate channels I had access to from the Peavey. Now I am only seeing the two again. But I am sure I can get it back.

I did not have sound processing/production/engineering in mind when purchasing/building either of these machines. They are just what I happen to have on hand. The desktop is working out really well.

The lappy barely gets by. I thought having a 64 bit processor and kernel would be really great. But the lil ol' 32 bit Athalon is out performing the 64 bit Turion under the table. Go figure. Granted, I haven't done the work on the Lappy's kernel that I have done on the desktop. But the desktop started out performing better even before the kernel enhancements.

Not really relevant to this discussion. The lappy has a ATI Express 200M graphics card 128 MB Shared RAM (yuck). The Desktop has an Nvidia Gforce 4 graphics card. 64 MB dedicated RAM.

Well, gotta give the neurons a break. I probably won't get a chance to play again until next weekend. Then I'll work out how to get the separate channels again. Gotta focus on day job and how to mirror an existing disk with LVM volumes on it.
Can't just reload. It's a production machine. should have been mirrored in the beginning. Oh well. Now I am rambling. I get that way when tired.

[k1773r37f]

Ok I have been pursuing feral water foul. I never really had the 8 channels presented thru the USB to the alsa sound subsystem. I think I just had a bunch o' Jack Rack channels and thought these were coming from the sound board.

According to Peavey this board just presents the mixed main out to the USB System. I still can't quite grokk this lsusb -v -d 08bb:2901 out put though.

Bus 001 Device 003: ID 08bb:2901 Texas Instruments Japan
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x08bb Texas Instruments Japan
idProduct 0x2901
bcdDevice 1.00
iManufacturer 1 Burr-Brown from TI
iProduct 2 USB Audio CODEC
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 1191
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 0
AudioControl Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 62
bInCollection 2
baInterfaceNr( 0) 1
baInterfaceNr( 1) 2
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bNrChannels 2
wChannelConfig 0x0003
Left Front (L)
Right Front (R)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 3
iTerminal 0
AudioControl Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 3
bSourceID 1
bControlSize 1
bmaControls( 0) 0x01
Mute
bmaControls( 1) 0x02
Volume
bmaControls( 2) 0x02
Volume
iFeature 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 4
wTerminalType 0x0201 Microphone
bAssocTerminal 0
bNrChannels 2
wChannelConfig 0x0003
Left Front (L)
Right Front (R)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 5
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 4
iTerminal 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 3 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x00c0 1x 192 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 512 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 3 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0060 1x 96 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 512 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 1
bBitResolution 8
bSamFreqType 3 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0060 1x 96 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 512 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 1
bBitResolution 8
bSamFreqType 3 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0030 1x 48 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 512 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
bNumEndpoints 1
bInterfaceClass 1 Audio
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bInterfaceProtocol 0
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AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bDelay 0 frames
wFormatTag 2 PCM8
AudioStreaming Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 1
bBitResolution 8
bSamFreqType 3 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0060 1x 96 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 512 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 6
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bDelay 0 frames
wFormatTag 2 PCM8
AudioStreaming Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 1
bBitResolution 8
bSamFreqType 3 Discrete
tSamFreq[ 0] 32000
tSamFreq[ 1] 44100
tSamFreq[ 2] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0030 1x 48 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 512 Decoded PCM samples
Interface Descriptor:
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Interface Descriptor:
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AudioStreaming Interface Descriptor:
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wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 48000
Endpoint Descriptor:
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bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
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bInterval 1
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bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
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bInterfaceClass 1 Audio
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AudioStreaming Interface Descriptor:
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bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0062 1x 98 bytes
bInterval 1
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bSynchAddress 0
AudioControl Endpoint Descriptor:
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bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
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bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
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AudioStreaming Interface Descriptor:
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AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
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bSamFreqType 1 Discrete
tSamFreq[ 0] 44100
Endpoint Descriptor:
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bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
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AudioControl Endpoint Descriptor:
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bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
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AudioStreaming Interface Descriptor:
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AudioStreaming Interface Descriptor:
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bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
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bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 44100
Endpoint Descriptor:
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bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
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bInterval 1
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AudioControl Endpoint Descriptor:
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bDescriptorType 37
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Interface Descriptor:
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Endpoint Descriptor:
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bSamFreqType 1 Discrete
tSamFreq[ 0] 32000
Endpoint Descriptor:
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bDescriptorType 5
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Transfer Type Isochronous
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AudioControl Endpoint Descriptor:
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bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
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bDescriptorType 4
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AudioStreaming Interface Descriptor:
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bDescriptorType 36
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bTerminalLink 5
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AudioStreaming Interface Descriptor:
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bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
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bSamFreqType 1 Discrete
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Endpoint Descriptor:
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bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
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bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
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wLockDelay 0 Decoded PCM samples
Interface Descriptor:
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AudioStreaming Interface Descriptor:
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bDescriptorType 36
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bTerminalLink 5
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wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
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bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 22050
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x002e 1x 46 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 9
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 16000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0044 1x 68 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 10
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 16000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
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wMaxPacketSize 0x0022 1x 34 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 11
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 1
bBitResolution 8
bSamFreqType 1 Discrete
tSamFreq[ 0] 16000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0022 1x 34 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 12
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 1
bBitResolution 8
bSamFreqType 1 Discrete
tSamFreq[ 0] 16000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0011 1x 17 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 13
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 1
bBitResolution 8
bSamFreqType 1 Discrete
tSamFreq[ 0] 8000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0012 1x 18 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 14
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 1
bBitResolution 8
bSamFreqType 1 Discrete
tSamFreq[ 0] 8000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0009 1x 9 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 15
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 11025
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 13
Transfer Type Isochronous
Synch Type Synchronous
Usage Type Data
wMaxPacketSize 0x0030 1x 48 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 16
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 11025
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 13
Transfer Type Isochronous
Synch Type Synchronous
Usage Type Data
wMaxPacketSize 0x0018 1x 24 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 17
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 1
bBitResolution 8
bSamFreqType 1 Discrete
tSamFreq[ 0] 11025
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 13
Transfer Type Isochronous
Synch Type Synchronous
Usage Type Data
wMaxPacketSize 0x0018 1x 24 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 18
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 1
bBitResolution 8
bSamFreqType 1 Discrete
tSamFreq[ 0] 11025
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 13
Transfer Type Isochronous
Synch Type Synchronous
Usage Type Data
wMaxPacketSize 0x000c 1x 12 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.00
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 31
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x85 EP 5 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 1x 1 bytes
bInterval 10
Device Status: 0x0001
Self Powered

It looks like there are a lot of goodies there just waiting to be hacked!



Here is my .asoundrc. But I think this is redundant. I don't think one really needs it.



pcm.!default {
type dmix
card default
}
ctl.!default {
type dmix
card default
}

Anyway's this little gizmo is working as designed. And for what it is I am happy. It is serving the purpose for which I purchased it well.

I just thought it would be neat to grab the individual channels process those and return the processed sound to the mains. Maybe make my daughter sound like a Chippet on a couple of songs.

We can say this one works with Linux!

Best Regards,
Killer Elf

[k1773r37f]

The formatting of my lsusb output was lost in traslation. I'll attach it as a file incase someone feels like hacking. It is an Open Document format file.

[k1773r37f]

I don't think I am gonna give up yet. This is what usbview shows. I might loos formatting. So please bear with me.

<code>
USB Audio CODEC
Manufacturer: Burr-Brown from TI
Speed: 12Mb/s (full)
USB Version: 1.10
Device Class: 00(>ifc )
Device Subclass: 00
Device Protocol: 00
Maximum Default Endpoint Size: 8
Number of Configurations: 1
Vendor Id: 08bb
Product Id: 2901
Revision Number: 1.00

Config Number: 1
Number of Interfaces: 4
Attributes: c0
MaxPower Needed: 0mA

Interface Number: 0
Name: snd-usb-audio
Alternate Number: 0
Class: 01(audio)
Sub Class: 01
Protocol: 00
Number of Endpoints: 0

Interface Number: 1
Name: snd-usb-audio
Alternate Number: 0
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 0

Interface Number: 1
Name: snd-usb-audio
Alternate Number: 1
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 02
Direction: out
Attribute: 9
Type: Isoc
Max Packet Size: 192
Interval: 1ms

Interface Number: 1
Name: snd-usb-audio
Alternate Number: 2
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 02
Direction: out
Attribute: 9
Type: Isoc
Max Packet Size: 96
Interval: 1ms

Interface Number: 1
Name: snd-usb-audio
Alternate Number: 3
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 02
Direction: out
Attribute: 9
Type: Isoc
Max Packet Size: 96
Interval: 1ms

Interface Number: 1
Name: snd-usb-audio
Alternate Number: 4
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 02
Direction: out
Attribute: 9
Type: Isoc
Max Packet Size: 48
Interval: 1ms

Interface Number: 1
Name: snd-usb-audio
Alternate Number: 5
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 02
Direction: out
Attribute: 9
Type: Isoc
Max Packet Size: 96
Interval: 1ms

Interface Number: 1
Name: snd-usb-audio
Alternate Number: 6
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 02
Direction: out
Attribute: 9
Type: Isoc
Max Packet Size: 48
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 0
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 0

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 1
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 196
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 2
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 98
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 3
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 180
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 4
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 90
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 5
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 132
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 6
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 66
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 7
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 92
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 8
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 46
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 9
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 68
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 10
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 34
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 11
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 34
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 12
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 17
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 13
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 18
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 14
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 5
Type: Isoc
Max Packet Size: 9
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 15
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 13
Type: Isoc
Max Packet Size: 48
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 16
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 13
Type: Isoc
Max Packet Size: 24
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 17
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 13
Type: Isoc
Max Packet Size: 24
Interval: 1ms

Interface Number: 2
Name: snd-usb-audio
Alternate Number: 18
Class: 01(audio)
Sub Class: 02
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 84
Direction: in
Attribute: 13
Type: Isoc
Max Packet Size: 12
Interval: 1ms

Interface Number: 3
Name: usbhid
Alternate Number: 0
Class: 03(HID )
Sub Class: 00
Protocol: 00
Number of Endpoints: 1

Endpoint Address: 85
Direction: in
Attribute: 3
Type: Int.
Max Packet Size: 1
</code> Interval: 10ms

Dang it. I still say I ought to be able to grab these thru alsa/jack. Peavey probably didn't intend it. And only the two channels show up on the Windows laptop I use for work. I coulda swore I had it at one time. I shoulda left well enough alone.

Gotta turn in now. But I will keep hackin'

[sheehanje]

The first thing I noticed is you are connected USB 1.1. Is that because of the device, or because of the USB port on the computer? I'm not an expert with this, but I don't think USB 1.1 would cleanly handle 8 channels at once.

I looked up the specs of the Peavey PV8 on Sweetwater, and it says the USB can handle either the main outs or the tape out, which leads me to believe you can't record 8 channels separately. Rather the 8 Channels will get mixed to 2. I've seen this with other Mixers with USB connectivity. If this is the case, it won't matter if you use Linux or Windows.

Like I said, I'm not an expert with this stuff, but I have run across similar mixers that only support 2 channels out through USB.

[AutoStatic]

The first thing I noticed is you are connected USB 1.1. Is that because of the device, or because of the USB port on the computer? I'm not an expert with this, but I don't think USB 1.1 would cleanly handle 8 channels at once.The device is USB1.1 so due to the limited bandwidth you just cannot use more than two channels at once afaik. If you want more channels you either need a USB2 or Firewire device.

[liberty_nz]

So is there any USB 2.0 mixers out there that work with ubuntu?
I'm keen to set up some home recording with my eee.

[Capoeira]

So is there any USB 2.0 mixers out there that work with ubuntu?
I'm keen to set up some home recording with my eee.

http://www.linuxjournal.com/article/10240

[Jeremylc]

http://www.linuxjournal.com/article/10240

Unfortunately, that is a MIDI controller, not an audio mixer.

[Capoeira]

Unfortunately, that is a MIDI controller, not an audio mixer.

i did'nt understand....in the box mixing you do with MIDI

[k1773r37f]

So is there any USB 2.0 mixers out there that work with ubuntu?
I'm keen to set up some home recording with my eee.

The PV USB 8 is a USB 2.0 mixer. However, the ancient machine I had it conneccted to at the time only had USB 1.0 ports available. BTW, I have an eee pc. I don't think it is up to the task of sound processing of this magnitude. I'd look into a more full function lappy running Ubuntu Studio.

[Jeremylc]

The PV USB 8 is a USB 2.0 mixer. However, the ancient machine I had it conneccted to at the time only had USB 1.0 ports available. BTW, I have an eee pc. I don't think it is up to the task of sound processing of this magnitude. I'd look into a more full function lappy running Ubuntu Studio.

So, does that mean the individual channels may actually be accessible? (My EEE PC may not have the horsepower, but my MBP surely does :) )

[JC Cheloven]

So is there any USB 2.0 mixers out there that work with ubuntu?
I'm keen to set up some home recording with my eee.
Unfortunately, usb2.0 lacks a standard, so it's diffucult for linux audio developpers to make those devices to work. Some of them are reported to work, many of them with issues. For example I've heard this one records ok in all channels, but has problems at playback.
http://www.roland.com/products/en/M-16DX/index.html

[k1773r37f]

So, does that mean the individual channels may actually be accessible? (My EEE PC may not have the horsepower, but my MBP surely does :) )

Sorry, only the mains are actually presented to the USB. When I thought I had all channels, I had in fact only setup different jack channels to the same two channels. I was still learning jack at the time as well. I am rather new to all this computer sound engineering stuff.

Thanx,
Killer Elf

[adel.wahba]

http://www.linuxjournal.com/article/10240 (http://www.linuxjournal.com/article/10240)

[adel.wahba]

understand....in the box mixing you do with MIDI

[iangreentree]

Hi All, my very first Post.

I have aquired a PV10 USB mixer to use with Ubuntu Studio. I can say it works great and was picked up by JACK with out too much fiddling about. I can confirm that the mixer only outputs the 2 master channel via USB as I had a look through the owner manual (http://www.peavey.com/products/proaudio/mixers/pv/index.cfm/item/116340/PV%26nbsp%3B10%26nbsp%3BUSB.html) and found the wiring diagram. The USB output is taken from Master/Headphone signal. Checking the owners manuals for PV6 USB and PV8 USB, it looks like this is standard for all Peavey PV USB mixer models.

The Tape to Control and the Tape to Mix switches also managed the USB signal on the mixer.

Hope this helps anyone visiting this Thread as this mixer is a great addition to my Ubuntu Studio.