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Wmv to Mp4, no sound after conversion

Started by TheInvoker, September 10, 2018, 10:28:45 am

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TheInvoker

I'm trying to convert a wmv file to mp4
i can't use "copy" in audio because i get the message "only AAC AC3 E-Ac3 supported for this file"

I tried to use AAC and AC3 (FDK and lav) but i always get no sound

With a different software i have no problems but i prefer Avidemux because i can do more things (like changing saturation and hue)

Codec of the audio source is WMAPRO

eumagga0x2a

September 10, 2018, 11:23:56 am #1 Last Edit: September 10, 2018, 11:28:59 am by eumagga0x2a
Please try the latest nightly (a possibly relevant issue was fixed by the [demuxers/Asf] Do not lose audio on rewind commit shortly after the 2.7.1 release).

https://avidemux.org/nightly/win64/

TheInvoker

It doesn't work

I think Avidemux can't even recognize the audio when i open the file. I try to play the video in avidemux and there is no sound

eumagga0x2a

Well, it would have been useful to mention that Avidemux can't play the audio. Obviously, if Avidemux can't decode the audio track, it would not be able to re-encode it. Please provide a sample then.

TheInvoker

Original File Audio

   Audio #1
      ID : 1
      Format : WMA
      Format profile : Pro
      Codec ID : 162
      Codec ID/Info : Windows Media Audio
      Description of the codec : Windows Media Audio 10 Professional - 440 kbps, 44 kHz, 2 channel 24 bit 2-pass VBR
      Duration : 37 min 58 s
      Bit rate mode : Variable
      Bit rate : 381 kb/s
      Channel(s) : 2 channels
      Sampling rate : 44.1 kHz
      Bit depth : 24 bits
      Stream size : 104 MiB (7%)
      NumberOfFrames : 5273

After using Avidemux: AAC (lav)

   Audio #2
      ID : 2
      Format : AAC
      Format/Info : Advanced Audio Codec
      Format profile : LC
      Codec ID : 40
      Duration : 1 min 14 s
      Bit rate mode : Constant
      Bit rate : 3 710 b/s
      Maximum bit rate : 128 kb/s
      Channel(s) : 2 channels
      Channel positions : Front: L R
      Sampling rate : 44.1 kHz
      Frame rate : 43.066 FPS (1024 spf)
      Compression mode : Lossy
      Stream size : 34.0 KiB (0%)
      Default : Yes
      Alternate group : 1

After using different software

   Audio #2
      ID : 2
      Format : AAC
      Format/Info : Advanced Audio Codec
      Format profile : LC
      Codec ID : 40
      Duration : 2 min 0 s
      Bit rate mode : Variable
      Bit rate : 160 kb/s
      Channel(s) : 2 channels
      Channel positions : Front: L R
      Sampling rate : 48.0 kHz
      Frame rate : 46.875 FPS (1024 spf)
      Compression mode : Lossy
      Stream size : 2.30 MiB (9%)
      Title : Stereo / Stereo
      Default : Yes
      Alternate group : 1
      Encoded date : UTC 2018-09-10 14:47:10
      Tagged date : UTC 2018-09-10 14:47:10

With settings/filters i tried to reproduce the same data (Constant---->Variable, 44.1khz----->48khz,128----->160 kb/s) but nothing changes.

TheInvoker

i get no audio when the audio codec of the original file is Windows media audio 10 professional
With Windows media audio 9.2 or 8 i have no problems.

eumagga0x2a

Please provide a sample video, you can use a service like WeTransfer, Mega, Dropbox, Google Drive or similar. While unable to promise anything, without a sample to play with no improvement is possible.

alexrayne

October 01, 2018, 09:24:56 pm #7 Last Edit: October 01, 2018, 09:29:00 pm by alexrayne
I also got problems with WMV: video WMV3 + audio WMAPRO
1) i try to cut some region of source into AVI by copy - produced avi cant be loaded by avidexmux with crash: WMAPRO cant be processed by avi filter-graph. videoplayers alo says that audio can`t be handled
2) try to save video into avi by video copy and audio in PCM - PCM stream generated, but it is silence
3) when save into avi with null video and PCM audio - PCM stream only 20ms length.

saving to mkv or mp4 container - always loose audio, or not compatible with WMV

but avidemux2.7.0 - can save PCM audio when save into avi with null video, and PCM audio. Looks like ver 2.7.1 now can`t handle WMApro totaly.





eumagga0x2a

Please don't bother reporting problems with WMAPRO without providing a sample, thank you.