v0.2.3

New feature: Dialogue enhancement
AudioEncode can now enhance dialogue by compressing background channels using signal from front center channel of input. This is done with the Ffmpeg filter sidechaincompress. If the input is stereo, a front center is produced using the Ffmpeg filter dialoguenhance before applying sidechaincompress. Dialogue enhancement can optionally be combined with an audioMixPreset to further lift the center channel and/or lower the background channels.
To enable this feature, simply add dialogueEnhancement.enabled: true to an AudioEncode in a profile like this:

  - type: AudioEncode
    bitrate: 128k
    suffix: _STEREO_DE
    dialogueEnhancement:
      enabled: true

Dialogue enhancement can be customized further using properties (listed are the default values):

 - type: AudioEncode
   bitrate: 128k
   suffix: _STEREO_DE
   dialogueEnhancement:
     enabled: true
     sidechainCompress:
       ratio: 8
       threshold: 0.012
       release: 1000.0
       attack: 100.0
     dialogueEnhanceStereo:
       enabled: true
       original: 1
       enhance: 1
       voice: 2