25 Aug
2012
25 Aug
'12
12:18 a.m.
On 08/24/2012 10:35 PM, harryhaaren(a)gmail.com wrote:
I record a C3 note, 10 seconds of it. Then I want to
create a wavetable.
Search for a zero crossing after 1 second, chop. Looped playback = C3.
Now I want to have a C#3, so 1/12 of the double of the frequency,
playing back at that rate will NOT always provide a C#3.
Hi Harry,
You may mean the right thing and even have implemented it correctly but
a halftone step over base_freq = base_freq * 2^(1/12)
Even if you implemented it correctly, overtones or undertones can
mislead ones perception quite easily. Looping can warp things back, too.
-- I suggest to play the wavetable in a loop and check with a spectrum
analyzer if you really have the fundamental.
ciao,
robin