MathGroup Archive 2008

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Re: waveform

Jack Kennedy wrote:
> I'm new to the audio functions of Mathematica, and I'd like
> to create a waveform that is a sine wave of whose frequency
> increasing linearly over time. Does anybody know a way
> to do this?

This goes linearly from 200 Hz to 1000 Hz in 2 sec:

Play[Sin[2 \[Pi] (200 t + 200 t^2)], {t, 0, 2}]

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