Re: [PD] For sample players based on [line~], [vline~], or, [phasor~], how can we be sure all samples are being played?
Hi Claude,
On 20/03/15 18:24, pd-list-request@lists.iem.at wrote:
I realize this is totally theoretical, because in all honestly I wouldn't be able to hear a difference if samples are being skipped
you can hear aliasing quite easily - you turn up the pitch dial on your oscillator and hear some other frequencies sweep downwards (and out of tune)
Could you explain this better? If I create a glissando effect using [line~] and [osc~], I don't hear any of the aliasing you mention, only the expected result of a pitch going up. In which situations would these aliasing effects appear?
Cheers, Gilberto
On 20/03/15 17:34, Gilberto Agostinho wrote:
Hi Claude,
On 20/03/15 18:24, pd-list-request@lists.iem.at wrote:
you can hear aliasing quite easily - you turn up the pitch dial on your oscillator and hear some other frequencies sweep downwards (and out of tune)
Could you explain this better? If I create a glissando effect using [line~] and [osc~], I don't hear any of the aliasing you mention, only the expected result of a pitch going up. In which situations would these aliasing effects appear?
you don't hear it with a single sine osc~ until very high frequencies (half the sample rate at best) as it doesn't have many partials
the higher frequency partials in the table in the attached patch fold over even when the oscillator fundamental is fairly low
Claude
-
Claude Heiland-Allen -
Gilberto Agostinho