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/AWS1/CL_ETCAUDIOPARAMETERS

Parameters required for transcoding audio.

CONSTRUCTOR

IMPORTING

Optional arguments:

iv_codec TYPE /AWS1/ETCAUDIOCODEC /AWS1/ETCAUDIOCODEC

The audio codec for the output file. Valid values include aac, flac, mp2, mp3, pcm, and vorbis.

iv_samplerate TYPE /AWS1/ETCAUDIOSAMPLERATE /AWS1/ETCAUDIOSAMPLERATE

The sample rate of the audio stream in the output file, in Hertz. Valid values include:

auto, 22050, 32000, 44100, 48000, 96000

If you specify auto, Elastic Transcoder automatically detects the sample rate.

iv_bitrate TYPE /AWS1/ETCAUDIOBITRATE /AWS1/ETCAUDIOBITRATE

The bit rate of the audio stream in the output file, in kilobits/second. Enter an integer between 64 and 320, inclusive.

iv_channels TYPE /AWS1/ETCAUDIOCHANNELS /AWS1/ETCAUDIOCHANNELS

The number of audio channels in the output file. The following values are valid:

auto, 0, 1, 2

One channel carries the information played by a single speaker. For example, a stereo track with two channels sends one channel to the left speaker, and the other channel to the right speaker. The output channels are organized into tracks. If you want Elastic Transcoder to automatically detect the number of audio channels in the input file and use that value for the output file, select auto.

The output of a specific channel value and inputs are as follows:

  • auto channel specified, with any input: Pass through up to eight input channels.

  • 0 channels specified, with any input: Audio omitted from the output.

  • 1 channel specified, with at least one input channel: Mono sound.

  • 2 channels specified, with any input: Two identical mono channels or stereo. For more information about tracks, see Audio:AudioPackingMode.

For more information about how Elastic Transcoder organizes channels and tracks, see Audio:AudioPackingMode.

iv_audiopackingmode TYPE /AWS1/ETCAUDIOPACKINGMODE /AWS1/ETCAUDIOPACKINGMODE

The method of organizing audio channels and tracks. Use Audio:Channels to specify the number of channels in your output, and Audio:AudioPackingMode to specify the number of tracks and their relation to the channels. If you do not specify an Audio:AudioPackingMode, Elastic Transcoder uses SingleTrack.

The following values are valid:

SingleTrack, OneChannelPerTrack, and OneChannelPerTrackWithMosTo8Tracks

When you specify SingleTrack, Elastic Transcoder creates a single track for your output. The track can have up to eight channels. Use SingleTrack for all non-mxf containers.

The outputs of SingleTrack for a specific channel value and inputs are as follows:

  • 0 channels with any input: Audio omitted from the output

  • 1, 2, or auto channels with no audio input: Audio omitted from the output

  • 1 channel with any input with audio: One track with one channel, downmixed if necessary

  • 2 channels with one track with one channel: One track with two identical channels

  • 2 or auto channels with two tracks with one channel each: One track with two channels

  • 2 or auto channels with one track with two channels: One track with two channels

  • 2 channels with one track with multiple channels: One track with two channels

  • auto channels with one track with one channel: One track with one channel

  • auto channels with one track with multiple channels: One track with multiple channels

When you specify OneChannelPerTrack, Elastic Transcoder creates a new track for every channel in your output. Your output can have up to eight single-channel tracks.

The outputs of OneChannelPerTrack for a specific channel value and inputs are as follows:

  • 0 channels with any input: Audio omitted from the output

  • 1, 2, or auto channels with no audio input: Audio omitted from the output

  • 1 channel with any input with audio: One track with one channel, downmixed if necessary

  • 2 channels with one track with one channel: Two tracks with one identical channel each

  • 2 or auto channels with two tracks with one channel each: Two tracks with one channel each

  • 2 or auto channels with one track with two channels: Two tracks with one channel each

  • 2 channels with one track with multiple channels: Two tracks with one channel each

  • auto channels with one track with one channel: One track with one channel

  • auto channels with one track with multiple channels: Up to eight tracks with one channel each

When you specify OneChannelPerTrackWithMosTo8Tracks, Elastic Transcoder creates eight single-channel tracks for your output. All tracks that do not contain audio data from an input channel are MOS, or Mit Out Sound, tracks.

The outputs of OneChannelPerTrackWithMosTo8Tracks for a specific channel value and inputs are as follows:

  • 0 channels with any input: Audio omitted from the output

  • 1, 2, or auto channels with no audio input: Audio omitted from the output

  • 1 channel with any input with audio: One track with one channel, downmixed if necessary, plus six MOS tracks

  • 2 channels with one track with one channel: Two tracks with one identical channel each, plus six MOS tracks

  • 2 or auto channels with two tracks with one channel each: Two tracks with one channel each, plus six MOS tracks

  • 2 or auto channels with one track with two channels: Two tracks with one channel each, plus six MOS tracks

  • 2 channels with one track with multiple channels: Two tracks with one channel each, plus six MOS tracks

  • auto channels with one track with one channel: One track with one channel, plus seven MOS tracks

  • auto channels with one track with multiple channels: Up to eight tracks with one channel each, plus MOS tracks until there are eight tracks in all

io_codecoptions TYPE REF TO /AWS1/CL_ETCAUDIOCODECOPTIONS /AWS1/CL_ETCAUDIOCODECOPTIONS

If you specified AAC for Audio:Codec, this is the AAC compression profile to use. Valid values include:

auto, AAC-LC, HE-AAC, HE-AACv2

If you specify auto, Elastic Transcoder chooses a profile based on the bit rate of the output file.

Queryable Attributes

Codec

The audio codec for the output file. Valid values include aac, flac, mp2, mp3, pcm, and vorbis.

Accessible with the following methods

Method Description
GET_CODEC() Getter for CODEC, with configurable default
ASK_CODEC() Getter for CODEC w/ exceptions if field has no value
HAS_CODEC() Determine if CODEC has a value

SampleRate

The sample rate of the audio stream in the output file, in Hertz. Valid values include:

auto, 22050, 32000, 44100, 48000, 96000

If you specify auto, Elastic Transcoder automatically detects the sample rate.

Accessible with the following methods

Method Description
GET_SAMPLERATE() Getter for SAMPLERATE, with configurable default
ASK_SAMPLERATE() Getter for SAMPLERATE w/ exceptions if field has no value
HAS_SAMPLERATE() Determine if SAMPLERATE has a value

BitRate

The bit rate of the audio stream in the output file, in kilobits/second. Enter an integer between 64 and 320, inclusive.

Accessible with the following methods

Method Description
GET_BITRATE() Getter for BITRATE, with configurable default
ASK_BITRATE() Getter for BITRATE w/ exceptions if field has no value
HAS_BITRATE() Determine if BITRATE has a value

Channels

The number of audio channels in the output file. The following values are valid:

auto, 0, 1, 2

One channel carries the information played by a single speaker. For example, a stereo track with two channels sends one channel to the left speaker, and the other channel to the right speaker. The output channels are organized into tracks. If you want Elastic Transcoder to automatically detect the number of audio channels in the input file and use that value for the output file, select auto.

The output of a specific channel value and inputs are as follows:

  • auto channel specified, with any input: Pass through up to eight input channels.

  • 0 channels specified, with any input: Audio omitted from the output.

  • 1 channel specified, with at least one input channel: Mono sound.

  • 2 channels specified, with any input: Two identical mono channels or stereo. For more information about tracks, see Audio:AudioPackingMode.

For more information about how Elastic Transcoder organizes channels and tracks, see Audio:AudioPackingMode.

Accessible with the following methods

Method Description
GET_CHANNELS() Getter for CHANNELS, with configurable default
ASK_CHANNELS() Getter for CHANNELS w/ exceptions if field has no value
HAS_CHANNELS() Determine if CHANNELS has a value

AudioPackingMode

The method of organizing audio channels and tracks. Use Audio:Channels to specify the number of channels in your output, and Audio:AudioPackingMode to specify the number of tracks and their relation to the channels. If you do not specify an Audio:AudioPackingMode, Elastic Transcoder uses SingleTrack.

The following values are valid:

SingleTrack, OneChannelPerTrack, and OneChannelPerTrackWithMosTo8Tracks

When you specify SingleTrack, Elastic Transcoder creates a single track for your output. The track can have up to eight channels. Use SingleTrack for all non-mxf containers.

The outputs of SingleTrack for a specific channel value and inputs are as follows:

  • 0 channels with any input: Audio omitted from the output

  • 1, 2, or auto channels with no audio input: Audio omitted from the output

  • 1 channel with any input with audio: One track with one channel, downmixed if necessary

  • 2 channels with one track with one channel: One track with two identical channels

  • 2 or auto channels with two tracks with one channel each: One track with two channels

  • 2 or auto channels with one track with two channels: One track with two channels

  • 2 channels with one track with multiple channels: One track with two channels

  • auto channels with one track with one channel: One track with one channel

  • auto channels with one track with multiple channels: One track with multiple channels

When you specify OneChannelPerTrack, Elastic Transcoder creates a new track for every channel in your output. Your output can have up to eight single-channel tracks.

The outputs of OneChannelPerTrack for a specific channel value and inputs are as follows:

  • 0 channels with any input: Audio omitted from the output

  • 1, 2, or auto channels with no audio input: Audio omitted from the output

  • 1 channel with any input with audio: One track with one channel, downmixed if necessary

  • 2 channels with one track with one channel: Two tracks with one identical channel each

  • 2 or auto channels with two tracks with one channel each: Two tracks with one channel each

  • 2 or auto channels with one track with two channels: Two tracks with one channel each

  • 2 channels with one track with multiple channels: Two tracks with one channel each

  • auto channels with one track with one channel: One track with one channel

  • auto channels with one track with multiple channels: Up to eight tracks with one channel each

When you specify OneChannelPerTrackWithMosTo8Tracks, Elastic Transcoder creates eight single-channel tracks for your output. All tracks that do not contain audio data from an input channel are MOS, or Mit Out Sound, tracks.

The outputs of OneChannelPerTrackWithMosTo8Tracks for a specific channel value and inputs are as follows:

  • 0 channels with any input: Audio omitted from the output

  • 1, 2, or auto channels with no audio input: Audio omitted from the output

  • 1 channel with any input with audio: One track with one channel, downmixed if necessary, plus six MOS tracks

  • 2 channels with one track with one channel: Two tracks with one identical channel each, plus six MOS tracks

  • 2 or auto channels with two tracks with one channel each: Two tracks with one channel each, plus six MOS tracks

  • 2 or auto channels with one track with two channels: Two tracks with one channel each, plus six MOS tracks

  • 2 channels with one track with multiple channels: Two tracks with one channel each, plus six MOS tracks

  • auto channels with one track with one channel: One track with one channel, plus seven MOS tracks

  • auto channels with one track with multiple channels: Up to eight tracks with one channel each, plus MOS tracks until there are eight tracks in all

Accessible with the following methods

Method Description
GET_AUDIOPACKINGMODE() Getter for AUDIOPACKINGMODE, with configurable default
ASK_AUDIOPACKINGMODE() Getter for AUDIOPACKINGMODE w/ exceptions if field has no va
HAS_AUDIOPACKINGMODE() Determine if AUDIOPACKINGMODE has a value

CodecOptions

If you specified AAC for Audio:Codec, this is the AAC compression profile to use. Valid values include:

auto, AAC-LC, HE-AAC, HE-AACv2

If you specify auto, Elastic Transcoder chooses a profile based on the bit rate of the output file.

Accessible with the following methods

Method Description
GET_CODECOPTIONS() Getter for CODECOPTIONS