Re: A software function generator for /dev/dsp?
On Tue, 12 Jan 2010 10:53:37 +0100, Michael Renner wrote:
> I'm looking for a function generator for the soundcard. It should
> generate sine, square and triangle.
Take a look at sox. Eg, the following from 'man sox',
,-----
| synth [-j KEY] [-n] [len [off [ph [p1 [p2 [p3]]]]]] {[type] [combine]
| [[%]freq[k][:|+|/|-[%]freq2[k]]] [off [ph [p1 [p2 [p3]]]]]}
| This effect can be used to generate fixed or swept frequency
| audio tones with various wave shapes, or to generate wide-band
| noise of various `colours'. . .
|
| For example, the following produces a 3 second, 48kHz, audio
| file containing a sine-wave swept from 300 to 3300 Hz:
| sox -n output.wav synth 3 sine 300-3300
| and this produces an 8 kHz version:
| sox -r 8000 -n output.wav synth 3 sine 300-3300
`-----
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Tong (remove underscore(s) to reply)
http://xpt.sourceforge.net/techdocs/
http://xpt.sourceforge.net/tools/
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