Audio

Name	Type	Description
include_if_source_has	array	This array allows for conditionally outputting tracks based on whether or not a specific input track exists. The tracks in the source are referred to by number reference: audio[0] refers to the first audio track.
include_conditions	array	This array allows for conditionally including output audio tracks based on conditions in the input file.
verify	boolean	Enable or disable post transcode verification for this track. default: true
codec	enum                           copy aac mpeg2_aac mpeg4_aac aac_lc heaac_v1 heaac_v2 heaac_auto s302m mp2 pcm mp3 ac3 aiff alac flac eac3 vorbis opus dolby_digital dolby_digital_plus	The audio codec to use. Selecting 'copy' will attempt to use the compressed source audio stream.
codec_provider	enum                           default ffmpeg mainconcept_v10 mainconcept_v11 mainconcept_v13	The codec provider to be used for encoding.
pid	integer	The audio program ID. This is only used for MPEG transport streams. maximum: 8190
channels	integer	The number of audio channels. minimum: 1 maximum: 24
channel_order	enum                           smpte wave_extensible	Specify a way to assign PCM channels to predefined speaker positions. Supported only for WAVE output format. default: smpte
dolby_digital_plus	object	The parameters for Dolby Digital Plus encoding.
sample_size	enum                           8 16 24 32 64	The audio sample size in bits. default: 24
sample_format	enum                           pcm_s8 pcm_u8 pcm_f16le pcm_f24le pcm_f32le pcm_f64le pcm_f16be pcm_f24be pcm_f32be pcm_f64be pcm_s16le pcm_s24le pcm_s32le pcm_s64le pcm_s16be pcm_s24be pcm_s32be pcm_s64be pcm_u16le pcm_u24le pcm_u32le pcm_u64le pcm_u16be pcm_u24be pcm_u32be pcm_u64be	The audio sample format/description.
sample_rate	integer	The audio sample rate in Hz. Typical values are 44100 and 48000. Omit to use the source sample rate.
bitrate_mode	enum                           cbr vbr	Select between constant and variable bitrate encoding. Note that not all codecs support all bitrate modes. Omit this value to use the codec's default.
bitrate_kb	number	The audio bitrate in kilobits per second. This is the average bitrate in the case of vbr. Not all audio codecs support this setting. Omit to use codec's default. minimum: 1 maximum: 1024
min_bitrate_kb	number	The minimum audio bitrate in kilobits per second. Valid for vbr only. minimum: 1 maximum: 1024
max_bitrate_kb	number	The maximum audio bitrate in kilobits per second. Valid for vbr only. minimum: 1 maximum: 1024
language	string	The audio language code. ISO-639 notation is preferred, but Hybrik will attempt to convert the passed language identifier.
default_language	string	The default audio language code. It is used when 'language' is not set and source language cannot be converted to valid ISO-639 notation. ISO-639 notation is preferred, but Hybrik will attempt to convert the passed language identifier.
disposition	enum                           default dub original comment lyrics karaoke audio_description spoken_subtitles clean_audio	The audio disposition.
track_name	string	The name of this audio track - will be used for mov files and MPEG-DASH (representation::id) for example. May be ignored, depending on your container format.
track_group_id	string	This indicates which Group this track belongs to. Multiple tracks with the same content but different bitrates would have the same track_group_id.
layer_id	string	This indicates which Layer this tracks belongs to. For example, this allows bundling one video layer and multiple audio layers with same bitrates but different languages.
layer_affinities	array	This indicates which other layers this layer can be combined with. For example, to combine audio and video layers.
filters	array	An array of audio filters that will be applied in order to the output audio.
channel_designators	array enum                           unknown left right front_left front_right front_center back_left back_right front_left_of_center front_right_of_center back_center side_left side_right left_height right_height center lfe_screen left_surround right_surround left_center right_center center_surround left_surround_direct right_surround_direct top_center_surround vertical_height_left vertical_height_center vertical_height_right top_back_left top_back_center top_back_right top_front_left top_front_center top_front_right rear_surround_left rear_surround_right left_wide right_wide lfe2 left_total right_total hearing_impaired narration mono dialog_centric_mix center_surround_direct haptic headphones_left headphones_right click_track foreign_language discrete discrete_0 discrete_1 discrete_2 discrete_3 discrete_4 discrete_5 discrete_6 discrete_7 discrete_8 discrete_9 discrete_10 discrete_11 discrete_12 discrete_13 discrete_14 discrete_15	*****
convert_aac_headers	enum                           adts_to_asc	For solving aac transmux issues between mp4 and ts/raw tracks.
aac_header_interval	integer	Allowing to solve specific hardware playback compliance problems.
dialnorm	number string	Dialogue Level (aka dialogue normalization or dialnorm) is the average dialogue level of a program over time, measured with an LAEq meter, referenced to 0 dBFS.
mainconcept_stream_mux_options	string	Provide direct stream instruction to the MainConcept multiplexer. Values are constructed as "prop=val,prop=val". See MainConcept documentation for valid values.
mainconcept_audio_options	string	MainConcept specific codec options - please reference the mainconcept codec documentation.
mainconcept_audio_profile	enum                           MPEG1 MPEG2 DVB DVHS VCD SVCD DVD DVD_MPEG1 DVD_DVR DVD_DVR_MPEG1 MMV HDV_HD1 HDV_HD2	One of the preset values for profile (e.g. mpeg1).
pcm_wrapping	enum                           raw bwf aes	The type of wrapping to use for PCM audio tracks.
metadata	object	*****
ffmpeg_args	string	The FFmpeg (target) command line arguments to be used. Note that these will override competing settings in the JSON.
dolbye	object	The parameters for Dolby E encoding.

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Example audio

{
  "uid": "transcode_task",
  "kind": "transcode",
  "payload": {
    "location": {
      "storage_provider": "s3",
      "path": "s3://my_bucket/my_folder"
    },
    "targets": [
      {
        "file_pattern": "{source_basename}_output{default_extension}",
        "existing_files": "replace",
        "container": {
          "kind": "mpegts"
        },
        "video": {
          "width": 1280,
          "height": 720,
          "codec": "h264"
        },
        "audio": [
          {
            "codec": "ac3",
            "pid": 482,
            "channels": 6,
            "sample_rate": 48000,
            "bitrate_kb": 384
          },
          {
            "codec": "aac_lc",
            "pid": 483,
            "channels": 2,
            "sample_rate": 48000,
            "bitrate_kb": 128
          }
        ]
      }
    ]
  }
}