[PD] Max Smoother Audio than Pd?

[Derek Holzer]

I realize that I should have written "however higher playback 
frequencies of the arrays will still alias"--meaning that if any of the 
partials went above Nyquist, you'd still have aliasing. Sorry for the 
confusion.

D.

On 3/28/10 4:03 PM, Roman Haefeli wrote:
> On Sun, 2010-03-28 at 15:37 +0200, Matteo Sisti Sette wrote:
>> Roman Haefeli escribió:
>>> On Sun, 2010-03-28 at 14:14 +0200, Derek Holzer wrote:
>>>
>>>> Generate bandlimited waveforms. Works for lower frequencies, however
>>>> higher frequencies will still alias...
>>>
>>> Why is that? I thought, when just playing so many partials of the
>>> waveform, so that all of them fit in below the nyquist frequency, there
>>> won't be any aliasing? Is that wrong?
>>
>> I don't think it's wrong. Obviously, if you generate only ONE table
>> (with sinesum for example) with all the partials necessary for using it
>> at low frequency, and then use it at higher frequencies, it will alias.
>> But if you use different tables for different frequencies, always
>> summing only the sines that are below the nyquist frequency, there can't
>> be any aliasing.
>
> Thanks for clarification, Matteo and Derek. This is actually what I
> initially thought as well, but the sentence 'however higher frequencies
> will still alias' sounded to me, as if more measures would be necessary
> in order to get completely rid of aliasing, which would have been unkown
> to me.
>
> Roman
>
>
>

-- 
::: derek holzer ::: http://macumbista.net :::
---Oblique Strategy # 154:
"The most easily forgotten thing is the most important"