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emusic
Joined: 02 Feb 2013
Posts: 3
Location: Novosibirsk, Russia
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 Posted: Sat Feb 02, 2013 2:21 pm Post subject: Multichannel and high resolution PCM file format descriptor |
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Being an excellent multi-channel audio editor, Wavosaur incorrectly saves PCM wave files having more than two channels and/or more that 16 bit samples. Regardless of number of channels and bitness, Wavosaur writes WAVEFORMATEX descriptor that can be used only for mono/stereo and 8/16-bit formats.
For other PCM formats, Microsoft requires to use WAVEFORMATEXTENSIBLE descriptor. Except of exact bitness, it allows to specify channel mask to distinguish between various multichannel speaker configurations.
Wavosaur correctly opens and edits 6_Channel_ID and 8_Channel_ID files from these examples but loses channel mask saving these files.
There are two useful articles on Microsoft site:
Multiple Channel Audio Data and WAVE Files
Multichannel and High-Resolution WAV Formats |
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Wavosaur Main Developer
Site Admin
Joined: 30 Sep 2006
Posts: 507
Location: France
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| Posted: Thu Feb 21, 2013 4:53 pm Post subject: |
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Hi,
We will try to work on this point.
_________________
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Wavosaur Main Developer
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http://www.wavosaur.com |
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emusic
Joined: 02 Feb 2013
Posts: 3
Location: Novosibirsk, Russia
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| Posted: Thu Feb 21, 2013 5:19 pm Post subject: |
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| Thank you. I think the best way is to offer a choice between WAVEFORMATEX and WAVEFORMATEXTENSIBLE descriptors for file saving, preconfiguring the default in accordance with MS requirements. And since Wavosaur doesn't support channel assignment now, it would be very nice to have a possibility to specify channel mask by hand (for example, as a hex value). |
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