Audio DVD PCM: 48 kHz or 96 kHz sampling rate, 16 bit or 24 bit Linear PCM, 2 ch

[valeriancafe]

Hello and good day to One and All,

My goal using Ubuntu 14.04 command line is to try and make a Audio DVD ( Not DVD-A ) from my flac music. I up-sampled from 16 bits to 24 bits

1) DVD spec PCM: 48 kHz or 96 kHz sampling rate, 16 bit or 24 bit Linear PCM, 2 channels = 4608 kb/s found info online

2) found this code to convert from flac to wav here on this nice forms " for f in *.flac; do sox "$f" -b 24 -r 44100 ./resampled/"${f%.flac}.wav"; done "

File Size: 108M Bit Rate: 2.12M <----------------------- How can I get the bit rate to 4608 kb/s ??????
Encoding: Signed PCM
Channels: 2 @ 24-bit
Samplerate: 44100Hz
Replaygain: off
Duration: 00:06:48.24
3) I would like to make my on music compilations. I need program that I can loop the background, picture not a video in the Video_TS folder and my music would go in the Audio_TS folder

4) then burn in Nero Linux

[tgalati4]

Was your source music "SuperAudio CD"? Why would you waste space by upscaling your music from 16-bits to 24-bits? That will take up a lot of space.

Try the command above using 96000 instead of 44100 for the rate switch. That will get you 96 kHz sampling instead of 44,100 Hz sampling.

96/44.1=2.177 and 2.177*2.12 Mbits/sec= 4.615 Mbits/sec.

For making a video, look at openshot. I don't know if an Audio DVD format can handle a looping picture--I'm not familiar with the format.

[Bucky Ball]

Sample rate/bit rate should be same as the original. You can't improve the audio quality of the original. That's it.

[Yellow Pasque]

Sample rate/bit rate should be same as the original. You can't improve the audio quality of the original. That's it.

Yes, but DVD format calls for PCM/wav at 48 or 98 kHz, so OP needs to at least convert to wav @ 48kHz.

for f in *.flac; do sox "$f" -r 48000 ./resampled/"${f%.flac}.wav"; done

Either that, or OP will have to convert to AC-3.

[mc4man]

You need to decide if you're going to DVD-Video or DVD-Audio.
For DVD-Video all the files go into a VIDEO_TS folder, DVD-Audio uses AUDIO_TS

When I used to make dvd audio disks ( DVD-Video), I'd author as titles based on artist, album & or category. Tracks would be chapters inside those titlesets. Also menus for navigation, ect.
Never did so on linux because it's so easy to do on windows.

Maybe take a look here -
http://audioplex.sourceforge.net/

[valeriancafe]

Thanks for Helping.... I found a code that helps me with one file for LPCM code " sox name.flac -b 24 name.wavpcm rate -v -s -I 96k " How can I do this with a holder of flac files ?:guitar:

[tgalati4]

I don't know if sox accepts wildcards like *.flac, but you can try it on a test directory of files. Otherwise, you would need to write a recursive script for going through each file in a directory. There are numerous examples on these forums. Search convert mp3 script.

[tgalati4]

I don't know if sox accepts wildcards like *.flac, but you can try it on a test directory of files. Otherwise, you would need to write a recursive script for going through each file in a directory. There are numerous examples on these forums. Search convert mp3 script.

It might look something like:




#!/bin/bash
# Super cheesy script to convert flac files to DVD pcm
for i in *.flac; do
musictrack=$(ls "$i" | sed -e 's/.flac//g')
echo "Converting: " $musictrack
sox "$musictrack.flac" -b 24 "$musictrack.wav" rate -v -s -I 96k
echo "Done converting: " $musictrack
done
exit 0

[shantiq]

valeriancafe (http://ubuntuforums.org/member.php?u=703289) cd to folder where your 16-bit flac files are and run


for f in *.flac ; do sox "$f" -b 24 -r 96k "${f%.flac}.wav" ; done

check with mediainfo


mediainfo *wav
General
Complete name : 01 - Open Heart.wav
Format : Wave
File size : 156 MiB
Duration : 4mn 43s
Overall bit rate mode : Constant
Overall bit rate : 4 608 Kbps


Audio
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 00001000-0000-0100-8000-00AA00389B71
Duration : 4mn 43s
Bit rate mode : Constant
Bit rate : 4 608 Kbps
Channel count : 2 channels
Channel positions : Front: L R
Sampling rate : 96.0 KHz
Bit depth : 24 bits
Stream size : 156 MiB (100%)


General
Complete name : 08 - Angie La La.wav
Format : Wave
File size : 252 MiB
Duration : 7mn 37s
Overall bit rate mode : Constant
Overall bit rate : 4 608 Kbps


Audio
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 00001000-0000-0100-8000-00AA00389B71
Duration : 7mn 37s
Bit rate mode : Constant
Bit rate : 4 608 Kbps
Channel count : 2 channels
Channel positions : Front: L R
Sampling rate : 96.0 KHz
Bit depth : 24 bits
Stream size : 252 MiB (100%)

[Yellow Pasque]

I'm not sure why the OP is trying to convert to 24-bit. I don't think it's necessary (and it probably won't increase audio quality of a 16-bit FLAC).

[shantiq]

Hi Temüjin (http://ubuntuforums.org/member.php?u=327594) these are the specs he requested
1) DVD spec PCM: 48 kHz or 96 kHz sampling rate, 16 bit or 24 bit Linear PCM, 2 channels = 4608 kb/s

but yes of course they will be "fake" 24/96 since the sound cannot be improved; can only be put in a "wider" container ; i am not crystal-clear as to what he wants to make here ; just gave him the tools to do the conversion he asked for ie 24/96 4608 kb/s wav .... he may or may not need these


he says he does not want dva-A (https://en.wikipedia.org/wiki/DVD-Audio) but that is the only format that would request such high specs



he probably only wants flac with an image attached so to be able to burn that to a normal dvd


so


to do that:


sox input1.flac input2.flac etc final.flac to get all your flac files as one

then to attach image:


time ffmpeg -loop 1 -r 2 -i input.png -i input.flac -c:a copy -c:v libx264 -g 7 -crf 0 -vf scale=-1:720 -preset veryfast -shortest VIDEO.mkv

probably 480 enough if for dvd


time ffmpeg -loop 1 -r 2 -i input.png -i input.flac -c:a copy -c:v libx264 -g 7 -crf 0 -vf scale=-1:480 -preset veryfast -shortest VIDEO.mkv


then create a dvd iso with devede [found in synaptic] and really easy to use and stable [click on add file and find your VIDEO.mkv] then burn iso to dvd


so did a test to check and this is the dvd specs u end up with

flac scaled down to 448 kbps ac3 which is the best you will get in a dvd it seems http://s20.postimg.org/9acgciuxl/test.jpg (http://postimg.org/image/9acgciuxl/)

[valeriancafe]

Thanks for helping, I know resampling from 16 bit to 24 bits does not improve the recordings. I just need it in DVD-video specs LPCM to play on a DVD player. Plus I know some people who would like to save their LP's so I can use sox. I looked over the ( man sox ) pages most of it looks like rocket science. To quote the man sox " sox -p song.ogg silence 1 0.50 0.1% 1 2.0 0.1% : \ newfile : restart
records a stream of audio such as LP/cassette and splits in to multiple audio files at points with 2 seconds of silence. Also, it does not start recording until it detects audio is playing
and stops after it sees 10 minutes of silence. " :guitar: might have some fun.... and Thanks again ...long live linux and other Distros :P