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HDAudio programming

category: code [glöplog]
 
Hello,

I am programming a music player for uncompressed 32 bit 7.1 (8 channels) PCM sounds, contained in WAV files.

I would need some test files, where to download such files?
Only free and legal downloads please.

Thanks, regards
added on the 2015-07-12 09:59:40 by AlienTech AlienTech
what you want tested? you could synth the wav mux yourself. what's the container?

struct block{ int/float fl,fr,c,lfe,bl,br,ml.mr }

not?
added on the 2015-07-12 13:21:59 by yumeji yumeji
@yumeji

I just need some WAV (container) files encoded as above specified (High Definition Audio).

Basically I need to test my application, so for example:
- if / how a sound is played
- channels allocation
- ... and so on

I guess repositories for such files exist, or?
added on the 2015-07-12 14:03:02 by AlienTech AlienTech
you're making a music player for files that don't exist? and i thought i had a useless hobby.
added on the 2015-07-12 15:12:19 by Maali Maali
32 bit integer PCM audio? In which system or application is such a thing used? Or maybe you mean 32 bit float? That's a quite common thing. Ask that on any audio recording studio oriented site.
added on the 2015-07-12 15:17:05 by yzi yzi
@Maali

Well, I managed to find some example files, see Multi-Channel Examples
http://www-mmsp.ece.mcgill.ca/documents/AudioFormats/WAVE/Samples.html

As far as I know, that audio format, should be used in common media like DVDs (5.1) and Blu-ray discs (7.1).

@yzi

Normally only 24 bit (in a 32 bit wide "container") are used.
added on the 2015-07-12 20:29:10 by AlienTech AlienTech
Just extract 7.1 DTS files from your favorite Blu-ray. You will have to thunk them to 32-bit because the sources before compression are 24-bit.

In the 1990s there were some attempts at standardized audio corpii, but none of them would help you as they were all 2.0 stereo, band-limited, or both. Most people nowadays just make their own based on the domain they're working in.
added on the 2015-07-13 07:08:06 by trixter trixter

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