Audio Convert
This flow element will convert audio to a the options selected.
Convert
- All: All tracks will be converted
- Matching: The tracks matching the fields will be converted
Matching
You can specific which tracks based on the following
| Property | Description |
|---|---|
| Bitrate | Can use Math Operations or specific the exact bitrate. Bitrate is in bits per second. |
| Chanenls | Can use Math Operations or specific how many channels exactly z |
| Codec | Can use String Operations |
| Language | Will compare the language specified using the Language Helper which compares languages based on their names and ISO codes, so 'en' will match English and eng |
| Title | Can use String Operations |
If no tracks match then no tracks will be converted
Codec
The codec to use to encode the audio
Channels
The number of channels this new audio track will be. If you specify more channels than the source, FFmpeg will automatically up mix it. If you specify fewer channels than the source, FFmpeg will automatically down mix it.
Automatic
This will not pass the channels to FFmpeg and leave it up to FFmpeg to determine the channels from the source track.
Same As Source
This will pass the same number of channels as the source track to FFmpeg for the converted track.
Bitrate
Bitrate of the audio track
Automatic
This leaves the bitrate up to FFmpeg to decide and is the default option.
Same as source
This will use the same bitrate as the original audio.
Bitrate Per Channel
If the bitrate specified should be per channel.
For example if checked and bitrate is set to 100K, and there are 6 channels, then the audio bitrate will be 600K.
If the audio is already in the choosen Codec and Channels is set to Same as source and Bitrate is set to Automatic or Same as source
then the audio will not be re-encoded and will just be copied
Codec Override
You can override the codec used for encoding by setting a Variable.
The variable name should follow the format CodecName_Codec.
For example, to use the libfdk_aac encoder for AAC audio, create a variable named AAC_Codec and set its value to libfdk_aac.
When this variable is set, the plugin will use its value instead of the default codec for that audio format.
If the variable is not set or the value is invalid, the plugin will fall back to the default codec.
Outputs
- Audio tracks matched the parameters and will be converted
- Audio tracks did not match and no conversion will occur