sebpiq
commented
9 years ago Yeah ... it's a "known issue". It is because the web audio API's oscillators are band-limited, so basically the phasor is not a real phasor. It is a bandlimited sawtooth, which looks like this : http://arachnoid.com/maxima/graphics/sawtooth_wave_graph.png (but in the other direction of course). I have another implementation which should work, but doesn't in firefox ( https://github.com/sebpiq/WebPd/blob/master/lib/objects/dsp.js#L199) for the moment, you'd better stick to line indeed ...
On Tue, Aug 25, 2015 at 12:00 AM, graphographer notifications@github.com wrote:
One can hear this in http://sebpiq.github.io/WebPd/examples/tabread-phasor/ at least on latest Firefox and Chrome. A similar thing happens in all my own patches too.
Just a guess, but maybe this is some sort of float precision issue? Thanks for all the hard work, though! I've been able to work around this by sticking to [line~] but I thought I'd point out this issue.
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Sébastien Piquemal
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One can hear this in http://sebpiq.github.io/WebPd/examples/tabread-phasor/ at least on latest Firefox and Chrome. A similar thing happens in all my own patches too.
Just a guess, but maybe this is some sort of float precision issue? Thanks for all the hard work, though! I've been able to work around this by sticking to [line~] but I thought I'd point out this issue.