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Topic: WAVEFORMATEXTENSIBLE chunk error (Read 4001 times) previous topic - next topic
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WAVEFORMATEXTENSIBLE chunk error

Recently I ripped some 5 channel 24/96 audio off of a DVD-A that I owned and when I went to encode the WAV file into FLAC, the encoder gave me this error:

ERROR: WAVEFORMATEXTENSIBLE chunk with unsupported channel mask=0x003B

I got around the error by using this command line in foobar:
--channels=5 --channel-map=none --bps=24 --sample-rate=96000 -s -8 - -o %d

But I was just wondering how to fix the header so I can use FLAC without the special commands

WAVEFORMATEXTENSIBLE chunk error

Reply #1 –
Seems like a bug. 0x003B means FL FR LFE BL BR (w/o center ch) and flac should support it since 1.1.3:
Quote
- Encoder can now take WAVEFORMATEXTENSIBLE WAVE files as input; decoder will output WAVEFORMATEXTENSIBLE WAVE files when necessary to conform to the latest Microsoft specifications.

- Now properly supports AIFF and WAVEFORMATEXTENSIBLE multichannel input, performing necessary channel reordering both for encoding and decoding. WAVEFORMATEXTENSIBLE channel mask is also saved to a tag on encoding and restored on decoding for situations when there is no natural mapping to FLAC channel assignments.

WAVEFORMATEXTENSIBLE chunk error

Reply #2 –
FLAC does not have a standard channel assignment that matches FL FR LFE BL BR so you will have to use --channel-map=none for these.

the FLAC assignments are here: http://flac.sourceforge.net/format.html#frame_header