Encoding problem, audio separated

encoding log?

dunno, I don't see any problems in the log... except probably "(h264 1920x800 1000.000fps)"
if you could share this file then I could take a closer look

I mean, share the source file

---
> not problem with:

20:00:04.348: 'C:/Users/Shepherd/Videos/vlc/vlc-record-2021-02-07.mkv' track 0: Using the output module for the format 'TrueHD'.

What I can say it's an incompatibility between the video cut with VLC and mkvmerge.
I'd say VLC produces somehow broken output (mpv shows 1000.000fps, MPC-HC shows 48 fps while the video is actually 24 fps - this isn't normal in any case).
Transcoded video itself is OK, but the playback hangs AFTER processing via mkvmerge (used to attach audio / subs streams).

Possible solutions:
1. do not cut video with VLC
2. do the final muxing with ffmpeg rather than mkvmerge: set code.tools.use_mkvmerge = false in SVP's All settings --> in this case this video works after transcoding

but keep in mind that mkvmerge usually works better than ffmpeg

hey sup, I've tried to put it to MP4 (mkv to mp4) and I lose the audio too ....

Here is the logs, I also tested checking the box "video only, drop other tracks" and the file become a true mp4 video but without sound. Otherwise it's just "mkv" without audio.

Original file is 44.1 Mo, after encoding, 27.4 Mo and no audio   and I cannot import it in Premiere cuz I need a mp4 container

22:09:10.805: ===== Starting mpv ======
22:09:10.805: Command line: C:\Program Files (x86)\SVP 4\mpv64\mpv.exe C:/Users/Shepherd/Videos/vlc/vlc-record-2021-02-11.mkv --o=C:/Users/Shepherd/Videos/vlc/vlc-record-2021-02-11.SVP.temporary.mkv --no-audio --no-sub --no-sub-auto --input-ipc-server=mpvencodepipe --input-media-keys=no --no-msg-color --vf=vapoursynth:[C:\Users\Shepherd\AppData\Roaming\SVP4\scripts\ffff.py]:4:14 --of=matroska --ovc=hevc_nvenc --ovcopts=b=10000000,preset=slow,rc=vbr,maxrate=13000000,bufsize=20000000,av=true,time_base=1000/59940,threads=14
22:09:10.845: (+) Video --vid=1 (*) (h264 1920x800 1000.000fps)
22:09:10.845: Audio --aid=1 (*) (truehd 8ch 48000Hz)
22:09:11.329: VO: [lavc] 1920x800 yuv420p
22:09:11.329: [vo/lavc] AVOption 'av' not found.
22:09:11.329: [vo/lavc] Opening encoder: NVIDIA NVENC hevc encoder [hevc_nvenc]
22:09:11.446: [encode] Opening output file: C:/Users/Shepherd/Videos/vlc/vlc-record-2021-02-11.SVP.temporary.mkv
22:09:11.447: [encode] Opening muxer: Matroska [matroska]
22:09:11.449: V: 00:00:00 / 69:19:07 (0%) {0.0min 0.0MB}
22:09:24.001: [encode] video: encoded 28820507 bytes
22:09:24.002: [encode] audio: encoded 0 bytes
22:09:24.002: [encode] muxing overhead 11409 bytes
22:09:24.002: Exiting... (End of file)
22:09:24.087: ===== Starting ffmpeg ======
22:09:24.087: Command line: C:\Program Files (x86)\SVP 4\utils\ffmpeg.exe -y -i C:/Users/Shepherd/Videos/vlc/vlc-record-2021-02-11.mkv -i C:/Users/Shepherd/Videos/vlc/vlc-record-2021-02-11.SVP.temporary.mkv -map 1:v -map 0:a? -map 0:s? -vcodec copy -acodec copy -scodec copy C:/Users/Shepherd/Videos/vlc/vlc-record-2021-02-11.SVP.mp4
22:09:24.162: ffmpeg version 4.3 Copyright (c) 2000-2020 the FFmpeg developers
22:09:24.162: built with gcc 9.3.1 (GCC) 20200621
22:09:24.162: configuration: --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-libopenmpt --enable-amf
22:09:24.162: libavutil 56. 51.100 / 56. 51.100
22:09:24.162: libavcodec 58. 91.100 / 58. 91.100
22:09:24.162: libavformat 58. 45.100 / 58. 45.100
22:09:24.162: libavdevice 58. 10.100 / 58. 10.100
22:09:24.162: libavfilter 7. 85.100 / 7. 85.100
22:09:24.162: libswscale 5. 7.100 / 5. 7.100
22:09:24.162: libswresample 3. 7.100 / 3. 7.100
22:09:24.182: Input #0, matroska,webm, from 'C:/Users/Shepherd/Videos/vlc/vlc-record-2021-02-11.mkv':
22:09:24.182: Metadata:
22:09:24.182: ENCODER : Lavf58.3.100
22:09:24.182: Duration: 69:19:07.71, start: 249525.190000, bitrate: 1 kb/s
22:09:24.182: Stream #0:0: Audio: truehd, 48000 Hz, 7.1, s32 (24 bit) (default)
22:09:24.182: Metadata:
22:09:24.182: DURATION : 69:19:07.587000000
22:09:24.182: Stream #0:1: Video: h264 (High), yuv420p(progressive), 1920x800 [SAR 1:1 DAR 12:5], 1k fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
22:09:24.182: Metadata:
22:09:24.182: DURATION : 69:19:07.712000000
22:09:24.183: Input #1, matroska,webm, from 'C:/Users/Shepherd/Videos/vlc/vlc-record-2021-02-11.SVP.temporary.mkv':
22:09:24.183: Metadata:
22:09:24.183: ENCODER : Lavf58.64.100
22:09:24.183: Duration: 00:00:22.49, start: 0.000000, bitrate: 10256 kb/s
22:09:24.183: Stream #1:0: Video: hevc (Main), yuv420p(tv, bt709/unknown/unknown), 1920x800 [SAR 1:1 DAR 12:5], 62.50 fps, 59.94 tbr, 1k tbn, 59.94 tbc (default)
22:09:24.183: Metadata:
22:09:24.183: DURATION : 00:00:22.489000000
22:09:24.184: [mp4 @ 0670f640] truehd in MP4 support is experimental, add '-strict -2' if you want to use it.
22:09:24.184: Could not write header for output file #0 (incorrect codec parameters ?): Experimental feature
22:09:24.184: Stream mapping:
22:09:24.184: Stream #1:0 -> #0:0 (copy)
22:09:24.184: Stream #0:0 -> #0:1 (copy)
22:09:24.185: Last message repeated 1 times
22:09:24.188: ===== ffmpeg exited with code 1 =====
22:09:24.188: (!!!) Intermediate file (video only): C:\Users\Shepherd\Videos\vlc\vlc-record-2021-02-11.SVP.temporary.mkv

Oh :'(

Thank you anyway