34 lines
1.0 KiB
Plaintext
34 lines
1.0 KiB
Plaintext
Rate Converter Plugin Using libavresample
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The plugin in rate-lavr subdirectory is an external rate converter using
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libavresample library. You can use this rate converter plugin by defining a
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rate PCM with "converter" parameter, such as:
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pcm.my_rate {
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type rate
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slave.pcm "hw"
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converter "lavrate"
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}
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The plug plugin has also a similar field, "rate_converter".
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Or, more easily, define a global variable "defaults.pcm.rate_converter",
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which is used as the default converter type by plug and rate plugins:
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defaults.pcm.rate_converter "lavcrate"
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Write the above in your ~/.asoundrc or /etc/asound.conf.
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The following converter types are available:
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- lavcrate_higher Use length=64
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- lavcrate_high Use length=32
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- lavcrate Use length=16
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- lavcrate_fast Use length=8
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- lavcrate_faster Use length=4
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Linear interpolation and cutoff values are automatically used depending on
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the supplied parameters and whether the plugin is used to upsample or
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downsample.
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