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View Full Version : azid parmaters for ac3 1/0 stream


topinrouen
14th October 2008, 18:45
Hello

I'am trying to encode an ac3 mono stream (1/0) in mp3.
The initial bitrate is 448 kbps at 48 khz.

I'am using Besweet, and to decode the ac3 stream, azid.
I've tried different parameters for azid, but it still has some
problems. The result is completely saturated. There are
some downmix overflow in the log.

Hereafter, you'll find part of the command line and the log from
besweet:
"C:\Program Files\BeSweet\BeSweet.exe -core( -input g:\test2\toto_01n T80 1_0ch 448Kbps DELAY 0ms.ac3 -output g:\test2\toto_01n T80 1_0ch 448Kbps DELAY 0ms.wav -2ch -logfile C:\Program Files\BeSweet\BeSweet.log ) -azid( -s mono --maximize )

[00:00:00:000] +------- BeSweet -----
[00:00:00:000] | Input : g:\test2\toto_01n T80 1_0ch 448Kbps DELAY 0ms.ac3
[00:00:00:000] | Output: g:\test2\toto_01n T80 1_0ch 448Kbps DELAY 0ms.wav
[00:00:00:000] | Floating-Point Process: No
[00:00:00:000] +-------- AZID -------
[00:00:00:000] | Input Channels Mode: 1/0, Bitrate: 448kbps
[00:00:00:000] | Output Stereo mode: Dolby surround compatible
[00:00:00:000] | Total Gain: 0.000dB, Compression: None
[00:00:00:000] | LFE levels: To LR -INF, To LFE 0.0dB
[00:00:00:000] | Center mix level: BSI
[00:00:00:000] | Surround mix level: BSI
[00:00:00:000] | Dialog normalization: No
[00:00:00:000] | Rear channels filtering: No
[00:00:00:000] | Source Sample-Rate: 48.0KHz
[00:00:00:000] +---------------------
[00:00:00.000] W7: Downmix overflow (0: +OVF)
[00:00:00.005] W7: Downmix overflow (0: +OVF) "

I've tried other parameters, e.g. , "-d1/0 -normalize", but it doesn't work.

Has anybody a suggestion, or does anyone know a godd tutorial
for azid.
thanks

tebasuna51
15th October 2008, 03:53
Yes seems don't work properly. We can't change now BeSweet, try:

azid -d1/0 -oc toto.ac3 toto.wav
lame -m m toto.wav toto.mp3

Or better:

eac3to toto.ac3 stdout.wav | lame -m m - toto.mp3