Never tried to see if the resulting AC3 is acceptable by an hardware decoder It is declared suitable to use as DVD audio track.
It encodes only in CBR mode (and no joint stereo, even if there is an entry in the dialog). You can select the bitrate and mode (joint stereo or stereo). Handy to convert MP3->wave for example.īased on liblame. It does nothing and ouput the audio as PCM wav file. These filters are just like regular filters, but they do output compressed audio. It is sometimes needed as for example, mono audio is illegal for VCD. The opposite is true for pal to film encoding.Īllow you to switch from mono to stereo. If you want to alter a video and change its fps from film (23.976) to pal (25) you have to use the film2pal filter on audio stream to keep audio/video sync. It is based on a slightly modified sox engine. It is faster than the 48->44.1 but may be of lower quality. This filter resamples the audio to the user given frequency. Very handy to correct a sync error on avi or mpeg file.
It is the only filter to work also in copy mode. This filter shifts the audio by removing the beginning or duplicating to create new sound. It is based on wavefs44, borrowed from DVD2AVI. If the input is not 48 khz, it does nothing. That filter does the 48->44.1khz conversion. It helps if the overall volume is very low (for example from ac3 audio track). That filter normalize linearily the audio. It can be useful to encode a track in MP2 to create a video CD for example. In process mode, the file will be processed then saved If the mode is set to copy, you will save a raw AC3/MP3/WMA. When using Audio->Save audio, the audio is saved depending on the current mode. To be used, the corresponding audio codec must be present on your system. If you don't set any filters, you will end up with a huge wav file as audio track. It is used when you just cut an avi for example or change the audio track.That also applies to mpeg encoding/transcoding/requantizing.Īvidemux will first decompress the audio, then apply the filters if any. In that mode, avidemux will just copy the audio source (external/avi/.) to the output.
0 kommentar(er)
