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added defaults for card and device
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@@ -16,10 +16,12 @@ Options can be used to specify various hardware parameters to open the PCM with.
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.TP
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\fB\-D\fR \fIcard\fR
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Card number of the PCM.
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The default is 0.
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.TP
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\fB\-d\fR \fIdevice\fR
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Device number of the PCM.
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The default is 0.
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.TP
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\fB\-c\fR \fIchannels\fR
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