Can't add audio

[LaVelaPodcast]

I have a lot of issues to go through, so in order to make it easier for me to help you, I ask that you please try these things first

• Try with the newest version from GitHub
• Read all the documentation at https://github.com/mifi/lossless-cut and Known issues / Troubleshooting
• Search for your problem under Issues or Discussions
• If you have an issue only with one particular file, use this form instead

Operating System

Windows 10

Steps to reproduce

1 Open my MKV file on LosslessCut
2 Extract the tracks
3 Edit audio (just compressor and normalizing) on Audacity.
4 Exporting the audio as MP3· or M4a from Audacity.
5 Open the extracted video track on LosslessCut
6 Drag and drop the mp3 or m4a file into LosslessCut
7 Check that both tracks appear as green at the Export dialogue.
8 Export as mp4

Expected behavior

Get an mp4 file with audio

Actual behavior

No audio in the video. Only video is exported

Share log

No response

[mifi]

if you can share log (codec parameters) for each file you're trying to combine tracks for, i can try help you

[glecas]

I had this same problem today trying to join video and audio in version 3.46.2

Video:

Format                      : MPEG-4
Format                      : AVC
Format/Info                 : Advanced Video Codec
Format profile              : [email protected]
Format settings             : CABAC / 4 Ref Frames
Format settings, CABAC      : Yes
Format settings, Reference  : 4 frames
Codec ID                    : avc1
Duration                    : 1 min 27 s
Bit rate                    : 861 kb/s
Width                       : 270 pixels
Height                      : 480 pixels
Display aspect ratio        : 0.563
Frame rate mode             : Constant
Frame rate                  : 23.976 (24000/1001) FPS
Color space                 : YUV
Chroma subsampling          : 4:2:0
Bit depth                   : 8 bits
Scan type                   : Progressive
Bits/(Pixel*Frame)          : 0.277
Stream size                 : 8.94 MiB (100%)
Writing library             : x264 core 164
Encoding settings           : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=15 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=8 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=50 / keyint_min=5 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=18.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=2025 / vbv_bufsize=2700 / crf_max=0.0 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Color range                 : Limited
Color primaries             : BT.709
Transfer characteristics    : BT.709
Matrix coefficients         : BT.709
Codec configuration box     : avcC

Audio:

Format                      : MPEG Audio
File size                   : 1.26 MiB
Duration                    : 1 min 27 s
Overall bit rate mode       : Variable
Overall bit rate            : 121 kb/s
Writing library             : LAME3.99r

Format version              : Version 1
Format profile              : Layer 3
Format settings             : Joint stereo / MS Stereo
Minimum bit rate            : 32.0 kb/s
Channel(s)                  : 2 channels
Sampling rate               : 44.1 kHz
Frame rate                  : 38.281 FPS (1152 SPF)
Compression mode            : Lossy
Stream size                 : 1.26 MiB (100%)
Encoding settings           : -m j -V 2 -q 0 -lowpass 18.5 --vbr-new -b 32

NOTE! Tried the same files using version 3.42.0 instead and it worked fine 🙂

[mifi]

I just tested this exact same thing with 3.46.2 and lame lame -m j -V 2 -q 0 --vbr-new -b 32 in.mp3 out.mp3, but it works for me, the audio is being played back.
I used MOV as output format.
If someone can share some files that reproduce the problem then I can look into it

[glecas]

Try these files for example. For me it works in some versions but not in others as listed below:
KanDuInteCykla.zip

Works in:

• 3.42.0
• 3.43.0

Does not work in:

• 3.46.2
• 3.45.0
• 3.44.0

[mifi]

I tried to combine your mp4 and mp3 and it works for me with 3.46.2 if I select output format MOV. In quicktime it plays back successfully with audio. which player are you using?
Note that if I select output format mp4, there is no audio

[glecas]

It doesn't work for me using .mp4 or .mov format. I tried playing the files using VLC 3.0.16 or QuickTime 7.7.9 (1680.95.84).

I am on a Windows system. If I combine the same files with LosslessCut 3.43.0 I get both video + audio 👍 so that's my workaround at the moment 🙂

EDIT: Using MediaInfo on the exported file, it doesn't appear to have added an audio-track at all (?). If I use a file-comparison tool it tells me that the original videofile and the exported file are identical. So maybe it's not an issue of playback but the problem is that the audio isn't even added or merged in the first place. Could it be a Windows-related issue?

[mifi]

maybe you can provide an error report from the help menu after opening the exported file. it will show whether there is an audio track at all.
so you're saying that you can add audio (the exact same file) in 3.43.0 but not in 3.46.2?

[glecas]

I uninstalled other video editor (Cyberlink PowerDirector) and rebooted computer. Now it works on all versions. So the problem I had was probably not related to LLC 🙂👍 I am not sure what the problem was but now it all works (for me) and I am happy. Not sure about the OP (@LaVelaPodcast) though.

[mifi]

can reopen if still a problem with the latest version