Sets the way used to eventually downmix the number of channels of the input file for mono/stereo encoding in OPUS format.
Important note Starting from version 11 of the component, this property is ignored until the usage of default internal encoders is enabled: see the EnableInternalEncoders method for details about disabling internal encoders.
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Supported values are the following:
Mnemonic Value
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Numeric value
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Meaning
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OPUS_DOWNMIX_NONE
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0
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No downmix is applied.
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OPUS_DOWNMIX_MONO
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1
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Downmix to mono. This property is the same as entering the --downmix-mono setting inside the Appendix E - OpusEnc command line.
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OPUS_DOWNMIX_STEREO
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2
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Downmix to stereo. This property is the same as entering the --downmix-stereo setting inside the Appendix E - OpusEnc command line.
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This property is used only in the following situations:
During a recording session if the EncodeFormats.ForRecording property is set to ENCODING_FORMAT_OPUS and the EncodeFormats.OPUS.EncodeMode property is set to a value different from OPUS_ENCODE_CUSTOM.
During a CD ripping session if the EncodeFormats.ForCdRipping property is set to ENCODING_FORMAT_OPUS and the EncodeFormats.OPUS.EncodeMode property is set to a value different from OPUS_ENCODE_CUSTOM.
During an exporting session if the EncodeFormats.ForExporting property is set to ENCODING_FORMAT_OPUS and the EncodeFormats.OPUS.EncodeMode property is set to a value different from OPUS_ENCODE_CUSTOM.
For further details about encoding in OPUS format refer to the EncodeOPUS class section.
For further information about available encoding formats see the EncodeFormatsMan class.
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