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Thread: EMU 0404 USB new thread

  1. #241
    Join Date
    Jan 2006
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    Groningen
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    Distro
    Ubuntu 10.10 Maverick Meerkat

    Re: EMU 0404 USB new thread

    Quote Originally Posted by Yako View Post
    It says "Clock rate selector", which has 6 different settings. If I change it the audio becomes distorted (and frequency of the sound is higher), which I assume means the card's sample rate is increased, but the driver still sends audio in the old sample rate.
    I don't know how to make Ubuntu pick a certain sample rate, but looking at it, it seems the driver is able to set the sample rate automatically:
    Every applications audio gets mixed and resampled by PulseAudio. Deafault is 44.1khz. If you turn up the slider thus increasing the sampling frequency, the pitch goes up because 44.1khz is replayed in less time. ie. the USB interface expects more samples per second but gets fed the same.

    You can tell Pulse to resample at a higher frequency in /etc/pulse/daemon.conf (making it a global setting)
    Or perhaps tell Pulse to stop resampling at all and hence decreasing Pulses burden.

  2. #242
    Join Date
    Jun 2008
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    10

    Re: EMU 0404 USB new thread

    Can we avoid resampling playback altogether?

    I see

    hw:CARD=USB,DEV=0
    E-MU 0404
    Direct hardware device without any conversions
    hw:CARD=USB,DEV=1
    E-MU 0404
    Direct hardware device without any conversions
    plughw:CARD=USB,DEV=0
    E-MU 0404
    Hardware device with all software conversions
    plughw:CARD=USB,DEV=1
    E-MU 0404
    Hardware device with all software conversions

    But I can't get ALSA to work with hw:, only plughw

  3. #243
    Join Date
    Dec 2008
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    46

    Re: EMU 0404 USB new thread

    Just checked in Ubuntu Maverick 10.10 and the EMU-1010 works at 96 KHz sampling and the clock rate settings from programs work automatically. So both those patches are indeed working.

    Leigh.

  4. #244
    Join Date
    Oct 2010
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    11

    Re: EMU 0404 USB new thread

    Not sure if this is news to anyone else, but I got my 404USB to work in Ardour for playback and recording in UbuntuStudio 10.10. All I had to do was go through Setup in JACKControl and select the device for input and output.

    Not sure why I'd been banging my head up against the wall for so long over that, lol... now I can stop recording in Windows! Yea!

  5. #245
    Join Date
    Dec 2008
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    46

    Re: EMU 0404 USB new thread

    Last edited by klotz; December 14th, 2010 at 06:59 AM. Reason: spelling

  6. #246
    Join Date
    Jan 2011
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    2

    Re: EMU 0404 USB new thread

    I have the new 0204 EMU Soundinterface here on my desk. Unfortuantely it does not work out of the box.


    lsusb output is:

    Bus 002 Device 003: ID 041e:3f19 Creative Technology, Ltd

    Can I make this device to run? I think it is similar to the 0202 device.
    I'am not advanced in linux. If you have an sugestion plase eplain it.

    Chis

    I have added the output of lsusb -v to my post.
    Maybe it helps?
    Attached Files Attached Files
    Last edited by Youman; January 7th, 2011 at 05:03 PM.

  7. #247
    Join Date
    Jan 2011
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    2

    Re: EMU 0404 USB new thread

    Hi,

    I have sent the 0204 back. Thats a pity, because I think it sounds a little bit better than the 0202.

  8. #248
    Join Date
    Jan 2011
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    2

    Re: EMU 0404 USB new thread

    Playback works fine, but microphone to quiet.
    When using windows mic work as intendent, in linux (ubuntu 10.10 and others) i can barely hear it.
    Does anyone here have the same problem?

  9. #249
    Join Date
    Dec 2008
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    46

    Re: EMU 0404 USB new thread

    EMU-0202 seems to be broken again. Ssound card input fails.

    Diagnostics:
    alsamixer fails with
    "cannot load mixer controls: Invalid argument"

    I get this when I turn it on in dmesg:

    Code:
    [  583.562286] usb 1-1.4: new high speed USB device using ehci_hcd and address 9
    [  583.662878] 9:1:1: endpoint lacks sample rate attribute bit, cannot set.
    [  583.663247] 9:1:2: endpoint lacks sample rate attribute bit, cannot set.
    [  583.663617] 9:1:3: endpoint lacks sample rate attribute bit, cannot set.
    [  583.663993] 9:1:4: endpoint lacks sample rate attribute bit, cannot set.
    [  583.664830] 9:1:5: endpoint lacks sample rate attribute bit, cannot set.
    [  583.665253] 9:1:6: endpoint lacks sample rate attribute bit, cannot set.
    [  583.665618] 9:1:7: endpoint lacks sample rate attribute bit, cannot set.
    [  583.666089] 9:1:8: endpoint lacks sample rate attribute bit, cannot set.
    [  583.666492] 9:1:9: endpoint lacks sample rate attribute bit, cannot set.
    [  583.666869] 9:1:10: endpoint lacks sample rate attribute bit, cannot set.
    [  583.667242] 9:1:11: endpoint lacks sample rate attribute bit, cannot set.
    [  583.667994] 9:2:1: endpoint lacks sample rate attribute bit, cannot set.
    [  583.668364] 9:2:2: endpoint lacks sample rate attribute bit, cannot set.
    [  583.668742] 9:2:3: endpoint lacks sample rate attribute bit, cannot set.
    [  583.669112] 9:2:4: endpoint lacks sample rate attribute bit, cannot set.
    [  583.669611] 9:2:5: endpoint lacks sample rate attribute bit, cannot set.
    [  583.669986] 9:2:6: endpoint lacks sample rate attribute bit, cannot set.
    [  583.670499] 9:2:7: endpoint lacks sample rate attribute bit, cannot set.
    [  583.670861] 9:2:8: endpoint lacks sample rate attribute bit, cannot set.
    [  583.671369] 9:2:9: endpoint lacks sample rate attribute bit, cannot set.
    [  583.671859] 9:2:10: endpoint lacks sample rate attribute bit, cannot set.
    [  583.672233] 9:2:11: endpoint lacks sample rate attribute bit, cannot set.
    [  583.695621] 9:1:1: endpoint lacks sample rate attribute bit, cannot set.
    Eventually I'll get (here with 10 instead of 9, since I've repeated the test)
    Code:
    [  784.732753] 10:2:1: usb_set_interface failed
    [  789.726801] 10:2:1: usb_set_interface failed
    [  794.720885] 10:2:1: usb_set_interface failed
    [  799.715979] 10:2:1: usb_set_interface failed
    [  804.709091] 10:2:1: usb_set_interface failed
    [  809.786982] 10:2:1: usb_set_interface failed
    [  814.780645] 10:2:1: usb_set_interface failed
    [  819.775501] 10:2:1: usb_set_interface failed
    [  824.768466] 10:2:1: usb_set_interface failed
    [  829.762546] 10:2:1: usb_set_interface failed
    [  835.880334] 10:2:1: usb_set_interface failed
    [  840.873402] 10:2:1: usb_set_interface failed
    [  845.867485] 10:2:1: usb_set_interface failed
    [  850.861581] 10:2:1: usb_set_interface failed
    I'm on 2.6.35-26-generic-pae build from Ubuntu Maverick 10.10.

    I wonder if this change is somehow related, either in that it has, or perhaps hasn't, happened.

    The Audio Class v2 support code in 2.6.35 added checks for the
    bInterfaceProtocol field. However, there are devices (usually those
    detected by vendor-specific quirks) that do not have one of the
    predefined values in this field, which made the driver reject them.

    To fix this regression, restore the old behaviour, i.e., assume that
    a device with an unknown bInterfaceProtocol field (other than
    UAC_VERSION_2) has more or less UAC-v1-compatible descriptors.
    http://amailbox.org/mailarchive/linu...0/9/18/4621391
    Last edited by klotz; February 6th, 2011 at 02:48 AM. Reason: added alsamixer, sound failure results

  10. #250
    Join Date
    Dec 2008
    Beans
    46

    Re: EMU 0404 USB new thread

    OK, moved some PCI cards around and I now get EMU-0202 working again.
    The "lacks attribute bit" is still there but seems to be a warning.
    I also validated on a fresh upgrade from 10.04 to 10.10 on a laptop.
    Leigh.

    EDIT: OK, broken again. doing apt-get remove pulseaudio and reboot seems to make it more stable.
    Last edited by klotz; February 7th, 2011 at 06:59 AM.

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