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Frequency Generator
Hey guys
I want to create a simple program to generate a sound frequency to play through my speakers. I would ideally like to be able to be able to generate a different frequency in each speaker ie 3Khz in right speaker and 3Khz in left speaker. So my question is what is teh easiest and fastest way of doign this.
Peter
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3khz and 3khz are the same, just thought I'd mention that ;)
First, you need to decide what waveform you're going to use - you can have sine (i.e. use sin() to calculate the amplitude), square (jump between the maximum and minimum values after waiting a certain period, for example 10ms, at each value.
Then there's sawtooth where you cycle from minimum to maximum then drop, and triangle which is linear up/down (like sine, but sharp at each end and always straight lines).
Right, that's the waveforms out of the way...
If you look up the wave* functions in MSDN you'll find how to create and play a sound buffer. From there it's a simple matter of generating the contents (note, once you've created the waveform buffer it's easy because you just keep cycling the same buffer :D).
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Cheers
I ment 3Khz and 5khz, something dirrerent to each speaker basically is this possible in teh same way.
Peter
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Yes. You just need to calculate different values for each channel, but it's still the same functions to play it.