[PD] For sample players based on [line~], [vline~], or, [phasor~], how can we be sure all samples are being played?

[Claude Heiland-Allen]

On 20/03/15 17:34, Gilberto Agostinho wrote:
> Hi Claude,
>
> On 20/03/15 18:24, pd-list-request at 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

-------------- next part --------------
A non-text attachment was scrubbed...
Name: aliasing.pd
Type: text/x-puredata
Size: 543 bytes
Desc: not available
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20150320/3d2921ff/attachment.bin>