>The fact that the constant maps to a delta and the successive higher
>derivatives to monomials of equally higher order sort of correspond to
>the fact that in order to approximate something with such fiendishly
>local structure as a delta (corresponding in convolution to taking the
>value) and its
Ross and Conner,
It's absolutely true that each callback must respond in a certain amount of
time. The maximum execution time of each callback is something you need to
consider. Ross' language is more precise, but maybe some arm-wavy examples
will help:
- If each callback does the same amount of
On 12 Jun 2015, at 14:31, Vadim Zavalishin
wrote:
> On one hand cos(omega0*t) is delta(omega-omega0)+delta(omega+omega0) in the
> frequency domain (some constant coefficients possibly omitted). On the other
> hand, its Taylor series expansion in time domain corresponds to an infinite
> sum o
On 12-Jun-15 12:54, Andreas Tell wrote:
I think it’s not hard to prove that there is no consistent
generalisation of the Fourier transform or regularisation method that
would allow plain exponentials. Take a look at the representation of
the time derivative operator in both time domain, d/dt, and
Dear Phil,
Just wanted to say thanks for your thorough response. It was very helpful and
raised a few questions.
When you mention driving graphic’s displays, did you mean software or hardware?
The project i’m working at the moment is based on a raspberry pi, FFT is all
conducted there, output
On 11 Jun 2015, at 19:58, Sampo Syreeni wrote:
> Now, I don't know whether there is a framework out there which can handle
> plain exponentials, a well as tempered distributions handle at most
> polynomial growth. I suspect not, because that would call for the test
> functions to be faster de
On 11-Jun-15 19:58, Sampo Syreeni wrote:
On 2015-06-11, vadim.zavalishin wrote:
Not really, if the windowing is done right. The DC offsets have more
to do with the following integration step.
I'm not sure which integration step you are referring to.
The typical framework starts with BLITs,
On 12/06/2015 6:51 AM, Richard Dobson wrote:
If it is purely for graphic display, the interesting aspect coding-wise
will be timing, so that the display coincides closely enough with the
audio it represents.
The following paper might give some idea about doing that with PortAudio
timestamps:
Hey Bjorn, Connor,
On 12/06/2015 1:27 AM, Bjorn Roche wrote:
The important thing is to do anything that might take an unbounded
amount of time outside your callback. For a simple FFT, the rule of
thumb might bethat all setup takes place outside the callback. For
example, as long as you do all yo
