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Old 23rd January 2012, 01:37 PM   #2011
phofman is offline phofman  Czech Republic
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Quote:
Originally Posted by WDYSUN View Post
Dear Folks

I discovered that sometime softwares (dsp, encoders, etc) add some stuffs in the header of the wavs when I go back to wav format. For instance this happens when I go from ape to wav.

There is anyway to clean the wavs, so that everything is before the DATA is 100% consistent with the wav standard?

I tried doing

Code:
  sox  in.wav   -t wav  out.wav
but header still contains non-standard elements.

Best Wishes
Pietro
The original wav format was later on extended to the "extended wav" format. See wavpcm at SoX - Sound eXchange | FAQ and SoX
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Old 23rd January 2012, 01:46 PM   #2012
WDYSUN is offline WDYSUN  Italy
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Quote:
Originally Posted by phofman View Post
The original wav format was later on extended to the "extended wav" format. See wavpcm at SoX - Sound eXchange | FAQ and SoX
I think wavpcm is not the standard wav, isn't it? The sox manual says:


.wavpcm: A non-standard, but widely used, variant of .wav. Some applications cannot read a standard WAV file header for PCM-encoded data with sample-size greater than 16-bits or with more than two channels, but can read a non-standard WAV header. It is likely that such applications will eventually be updated to support the standard header, but in the mean time, this SoX format can be used to create files with the non-standard header that should work with these applications. (Note that SoX will automatically detect and read WAV files with the non-standard header.)


Best Wishes
Pietro
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Old 23rd January 2012, 02:01 PM   #2013
phofman is offline phofman  Czech Republic
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Quote:
Originally Posted by WDYSUN View Post
I think wavpcm is not the standard wav, isn't it?
I do not know which wavs you have. Both types have the wav suffix. You can check via sox -V your.wav -n

Code:
sox INFO formats: detected file format type `wav'
or

Code:
sox INFO formats: detected file format type `wav'
sox INFO wav: EXTENSIBLE
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Old 23rd January 2012, 08:26 PM   #2014
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If you want standard pcm wave file, just do it via mplayer.

# mplayer -ao pcm:file=output.wav input.etc

checking file format for sure:

# file output.wav
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Old 24th January 2012, 08:43 AM   #2015
i2k92 is offline i2k92  Indonesia
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Is anyone kind enough to provide a step by step idiots guide to setup a good Linux audio system ?
I found one for Windows (very complete & idiot proof but in French) but only scattered infos on Linux from various web sites with various level of details.
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Old 24th January 2012, 07:49 PM   #2016
RR is offline RR  Europe
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Not exactly what you want, but relevant:
http://cort.as/1Wll
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Old 24th January 2012, 08:43 PM   #2017
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Quote:
Originally Posted by RR View Post
Not exactly what you want, but relevant:
http://cort.as/1Wll
An updated article you can find at http://www.acourate.com/freedownload...JACK v01.4.pdf
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Old 3rd February 2012, 02:55 PM   #2018
phofman is offline phofman  Czech Republic
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Interesting - usb class 2.0 gadget driver :-) Can be pretty handy at times.

Linux USB development and users ()
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Old 8th August 2012, 07:54 PM   #2019
breez is offline breez  Finland
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Hi all,

I have bought two Infrasonic Quartet cards to replace Delte 1010LTs (desperately need the extra 10 dB SNR in ADC!). Deltas were working fine with cards synchronized through S/PDIF and using the alsa configuration from: Sound Recording with GNU/Linux - Multiple Soundcards - ICE1712/Delta 1010

Any one have experience using multiple Quartets? Similar configuration doesn't work with Brutefir, I get this "invalid argument" error from alsa as warned in the comments for that configuration file. How many channels of playback and capture should be addressed in the config? Thanks for any help!
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Old 9th August 2012, 05:58 PM   #2020
breez is offline breez  Finland
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I think I got it now. I need to create the 'multi' device by addressing "hw:x,0", "hw:x,1", "hw:y,0" and "hw:y,1" each with two channels (x and y being the device numbers). Now only need to confirm that those channels are the analog inputs/outputs.
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