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View Full Version : Azid Channel Mapping Bug


LiFe
14th June 2004, 15:25
Why is Azid's default 6-ch mapping set to:
1. Left
2. Roght
3. Back Left
4. Back Right
5. Centre
6. LFE

When Microsoft clearly states that channel mapping for WAVEFORMATEXTENSIBL:
1. Front Left - FL
2. Front Right - FR
3. Front Center - FC
4. Low Frequency - LF
5. Back Left - BL
6. Back Right - BR
7. Front Left of Center - FLC
8. Front Right of Center - FRC
9. Back Center - BC
10. Side Left - SL
11. Side Right - SR
12. Top Center - TC
13. Top Front Left - TFL
14. Top Front Center - TFC
15. Top Front Right - TFR
16. Top Back Left - TBL
17. Top Back Center - TBC
18. Top Back Right - TBR

As per:
MS WAVE Extinsible Details (http://www.microsoft.com/whdc/device/audio/multichaud.mspx)

This in effect breaks any 6 channel wavs that Azid outputs.

LiFe.

hans-jürgen
15th June 2004, 10:04
Originally posted by LiFe
Why is Azid's default 6-ch mapping set to:
1. Left
2. Roght
3. Back Left
4. Back Right
5. Centre
6. LFE
Are you sure about this? Then it would mean that it differs from the default AC-3 mapping, too, which is FL, C, FR, SL, SR, LFE and would also explain why some users (and developers like DarkAvenger with HeadAC3he) have problems when combining Azid.dll with FAAC for multichannel transcodings. The liba52.dll for AC-3 decoding (e.g. used in foobar2000 or AC3Filter) does not have this problem, by the way.