| .TH TINYCAP 1 "October 2, 2016" "tinycap" "TinyALSA" |
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| .SH NAME |
| tinycap \- captures audio from an audio device |
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| .SH SYNOPSIS |
| .B tinycap\fR [ \fIfile\fR ] [ \fIoptions\fR ] |
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| .SH Description |
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| \fBtinycap\fR can record audio from an audio device to a wav file or standard output (as raw samples). |
| Options can be used to specify various hardware parameters to open the PCM with. |
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| .SH OPTIONS |
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| .TP |
| \fB\-D\fR \fIcard\fR |
| Card number of the PCM. |
| The default is 0. |
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| .TP |
| \fB\-d\fR \fIdevice\fR |
| Device number of the PCM. |
| The default is 0. |
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| .TP |
| \fB\-c\fR \fIchannels\fR |
| Number of channels the PCM will have. |
| The default is 2. |
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| .TP |
| \fB\-r\fR \fIrate\fR |
| Number of frames per second of the PCM. |
| The default is 48000. |
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| .TP |
| \fB\-b\fR \fIbits\fR |
| Number of bits per sample the PCM will have. |
| The default is 32. |
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| .TP |
| \fB\-p\fR \fIperiod_size\fR |
| Number of frames in a period. |
| The default is 1024. |
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| .TP |
| \fB\-n\fR \fIperiods\fR |
| Number of periods the PCM will have. |
| The default is 4. |
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| .TP |
| \fB\-t\fR \fIseconds\fR |
| Number of seconds to record audio. |
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| .SH SIGNALS |
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| When capturing audio, SIGINT will stop the recording and close the file. |
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| .SH EXAMPLES |
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| .TP |
| \fBtinycap output.wav\fR |
| Records a file called output.wav until an interrupt signal is caught. |
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| .TP |
| \fBtinycap output.wav -D 1 -t 2 |
| Records a file called output.wav from card 1 for two seconds or until an interrupt signal is caught. |
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| .TP |
| \fBtinycap -- -t 3 |
| Records to standard output for three seconds or until an interrupt signal is caught. |
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| .SH BUGS |
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| Please report bugs to https://github.com/tinyalsa/tinyalsa/issues. |
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| .SH SEE ALSO |
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| .BR tinyplay(1), |
| .BR tinymix(1), |
| .BR tinypcminfo(1) |
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| .SH AUTHORS |
| Simon Wilson |
| .P |
| For a complete list of authors, visit the project page at https://github.com/tinyalsa/tinyalsa. |
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