*renters with damaged heat shields*
sorry, once again. i've posted this to stackoverflow here:
http://stackoverflow.com/questions/2212275/compensating-for-value-change-while-changing-value
On Fri, Feb 5, 2010 at 4:55 PM, Graham Cox wrote:
>
> On 06/02/2010, at 1:02 AM, Chunk 1978 wrote:
>
>> he
On Fri, Feb 5, 2010 at 1:55 PM, Graham Cox wrote:
> Vibrato is Frequency Modulation. The general formula for that is:
We've been over these details on the coreaudio-api list very recently,
in response to Chunk's post there. Interested parties might consider
reading that thread, rather than rehash
On 06/02/2010, at 1:02 AM, Chunk 1978 wrote:
> help would be greatly appreciated.
Vibrato is Frequency Modulation. The general formula for that is:
y(t) = A * sin( 2 * π * fc * t + I * sin( 2 * π * fm * t))
Where fc is the 'carrier' or signal being modulated and fm is the modulation. A
is
On Feb 5, 2010, at 6:02 AM, Chunk 1978 wrote:
> however, if you look at those numbers they are not much of a sine
> wave. the reason, as far as i can see, is that self.pitch is adding
> itself along with the sine wave increments.
Right. You have to remember the base pitch and add the sin value
this is mostly a logic problem, so i apologize for my question not
being cocoa specific.
i'm attempting to add my own continuous pitch variation effect
(vibrato) by assigning my sound's pitch to the path of a sine wave.
this is my callback method, which is repeating every 1/30 of a second.
- (voi
