.mkv exporting problems

[Selur]

What settings is the different frame interpolation are located?

Avisynth: "Filtering->Avisynth->Frame->Interpolation->FPS adjust" offers SalFps3, InterFrame, MvToolsFPSmod, FrameRateConverter
Vapoursynth: "Filtering->Vapoursynth->Frame->Interpolation" offers Interframe/SVP, MVTools, RIFE, FrameRateConverter (, torchRIFE)

Doing a 50fps job works but still no sound.

Muxing call:

"C:\Program Files\Hybrid\64bit\mkvmerge.exe" --ui-language en -o "F:\VHS\2022-03-23@12_45_18_4010__05.mkv" --global-tags "C:\Users\kakeh\AppData\Local\Temp\mkvtags_2022-03-23@12_45_18_4010__05.xml" -d 0 --default-track 0:yes --default-duration "0:50/1fps" --aspect-ratio-factor 0:1/1 --fourcc 0:MP4V --no-chapters --compression -1:none --forced-track 0:yes --no-audio --no-subtitles "C:\Users\kakeh\AppData\Local\Temp\2022-03-23@12_45_18_4010_03.264" --default-track 0:yes --forced-track 0:no -a 0 --compression -1:none --no-video --no-subtitles --no-chapters "C:\Users\kakeh\AppData\Local\Temp\iId_1_aid_1_2022-03-23@12_45_18_4010_01.wav"
2022.03.23 - 12:54:56_Windows 11 Version 2009 (64bit)_2022.03.20.1 - level 9: tokenizeAndStart(1): "C:\Program Files\Hybrid\64bit\mkvmerge.exe" --ui-language en -o "F:\VHS\2022-03-23@12_45_18_4010__05.mkv" --global-tags "C:\Users\kakeh\AppData\Local\Temp\mkvtags_2022-03-23@12_45_18_4010__05.xml" -d 0 --default-track 0:yes --default-duration "0:50/1fps" --aspect-ratio-factor 0:1/1 --fourcc 0:MP4V --no-chapters --compression -1:none --forced-track 0:yes --no-audio --no-subtitles "C:\Users\kakeh\AppData\Local\Temp\2022-03-23@12_45_18_4010_03.264" --default-track 0:yes --forced-track 0:no -a 0 --compression -1:none --no-video --no-subtitles --no-chapters "C:\Users\kakeh\AppData\Local\Temp\iId_1_aid_1_2022-03-23@12_45_18_4010_01.wav"

seems fine and the mkvmerge output:

MkvMerge output: mkvmerge v66.0.0 ('Josie') 64-bit
MkvMerge output: 'C:\Users\kakeh\AppData\Local\Temp\2022-03-23@12_45_18_4010_03.264': Using the demultiplexer for the format 'AVC/H.264'.
MkvMerge output: 'C:\Users\kakeh\AppData\Local\Temp\iId_1_aid_1_2022-03-23@12_45_18_4010_01.wav': Using the demultiplexer for the format 'WAV'.
'C:\Users\kakeh\AppData\Local\Temp\2022-03-23@12_45_18_4010_03.264' track 0: Using the output module for the format 'AVC/H.264 (unframed)'.
'C:\Users\kakeh\AppData\Local\Temp\iId_1_aid_1_2022-03-23@12_45_18_4010_01.wav' track 0: Using the output module for the format 'PCM'.
MkvMerge output: The file 'F:\VHS\2022-03-23@12_45_18_4010__05.mkv' has been opened for writing.
MkvMerge output: Progress: 0%
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The cue entries (the index) are being written...
MkvMerge output: Multiplexing took 35 seconds.
process finished with exitcode: 0 and exitStatus: 0
-> F:\VHS\2022-03-23@12_45_18_4010__05.mkv (1044.42 MB)

Also shows no errors.
-> What player do you use? Are you sure it supports pcm inside mkv?

Seems like the current Avisynth is somehow incompatible with ffmpeg.
disable: Config->Internals->Avisynth->Prefer FFmpeg as decoder
enable: Config->Internals->Avisynth->Prefer avs2yuv as decoder

Cu Selur