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Today: 06.12.2025 - 04:45:31
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missing audio at start of file

MessageAuthor

i will have to dissapoint you ... i had the same issue without custom packet size ... i'm switching to matroska and encoding audio separately... here is the job file... Code:


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NickG

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Messages: 4,349
Registration: 07.13.2001
14.07.21 - 05:31:29
Message # 11
RE: missing audio at start of file

i also tried erasing maxstartuplatency but its the same ... thats all no more testing... sorry...


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'95 325iS - auto to manual swap done!

shadowpuck

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Registration: 03.31.2003
14.07.21 - 05:39:47
Message # 12
RE: missing audio at start of file

ok. what is the format of the audio referenced in the avs input file?




egk2

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Messages: 4,247
Registration: 07.24.2001
14.07.21 - 05:44:14
Message # 13
RE: missing audio at start of file

its wav 48000 hz




SC-M3

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Messages: 113
Registration: 08.03.2002
14.07.21 - 05:49:06
Message # 14
RE: missing audio at start of file

that's wierd...




ja///Mnn

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Messages: 302
Registration: 05.26.2003
14.07.21 - 06:00:06
Message # 15
RE: missing audio at start of file

If you load your .avs file in mplayerc, or graphedit, do you see any suspicious filters getting loaded, that could potentially affect the audio path? I noticed in your jobfile you are running pass number 1 separately: <rcPassNumber type="uint">1</rcPassNumber> This means that the resulting file will be huge, with a very high bitrate, since the encoder will then encode with reference quality. Maybe this can cause a problem. When you have the problem, if you encode twice or more with the same jobfile, does it always happen? Also, when the audio disappears, does it go away for good, or come back later? Next steps would be to find some way to repro with some files small enough to upload to me, so I can file a reproducible bug report. Thanks.




fierce

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Messages: 45
Registration: 09.11.2002
14.07.21 - 06:06:45
Message # 16
RE: missing audio at start of file

dont have time right now for all that bug testing, maybe in a few days... about two pass enc i always add null to 1st pass file and encode passes separately... audio is missing a few (about 10) start seconds and then starts playing fine to the end... tested with demuxing - this never happens when encoding audio-only...


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Mblaster

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Messages: 3,631
Registration: 08.16.2003
14.07.21 - 06:14:30
Message # 17
RE: missing audio at start of file

ok i did some tests and results are: realplayer view source: Code:




xnitromethx

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Messages: 436
Registration: 04.29.2003
14.07.21 - 06:18:21
Message # 18
RE: missing audio at start of file

iradic: thank you. this is very useful. I am not sure I completely understand the audio-video items, and how they indicate what works or not (is the audio only filesize smaller when audio is missing?) You indicate that the problem occurs only if the WAV file is 48 kHz, right? I already have your job file, if you could PM me your .avs script as well, I will try to reproduce the problem here, and then file a bug report. One more question: Is your Producer version Mercury Alpha 1?


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hyepwr

Keeper of wisdom




Statistics:
Messages: 214
Registration: 07.17.2003
14.07.21 - 06:28:07
Message # 19
RE: missing audio at start of file

yes file sizes are smaller when audio is missing... first four video-audio items are video with audio files second four video-audio items are demuxed audio from the above video with audio files audio-only item is encoded audio separately (without video)... dont know about producer version its like job file says "Helix DNA(TM) Producer 10.0 for Windows, Build 10.0.0.545" ReadMe says "Date: April 7, 2004" ... dont know anythig more about version ... how to find out?




m3cycln

Keeper of wisdom




Statistics:
Messages: 172
Registration: 06.13.2001
14.07.21 - 06:36:07
Message # 20
RE: missing audio at start of file
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