SynthMaker

some more information about the (hop) bug

Archive · 2009 4 old posts

From the original SynthMaker forum (2004–2014), with its members’ names and dates.

MichaelBenjamin ·

some weeks ago stefan talked about a hop bug - while i dont know how it actually reflects it in a schematic, i was wondering, that when sm is clicking, the clicks are not clean fast value changes, they are always sawed, and shaken, like in this pic.

often i have the impression that they reflect a used hopsize (in this case 32). the click in this pic is caused by .wav-switching with the wav array playback module.

stefan ·

Exactly what signal is on display here? I expect the click to differ plenty depending on where the "faulty values" originate from and how they flow through the schematic. When it comes to envelopes, all "hopping" implementation I know of rely on linear interpolation, which is why you get "ramps" I guess.

MichaelBenjamin ·

the signal is a waveplayback output, a 32 hop streamswitch into the wavearray windex input - from a sine to a more noisy signal. i marked the typical part in red.

stefan ·

MichaelBenjamin wrote: the signal is a waveplayback output, a 32 hop streamswitch into the wavearray windex input - from a sine to a more noisy signal. i marked the typical part in red.

I'd need to see the schematic I think. It shouldn't matter when you update the windex, as long as it doesn't end up getting "faulty" indices in a "buggy hop".

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