017d8cf2f45a-dmarc-requ...@lists.columbia.edu wrote:
Other than that, I’m not sure how this relates to your
window but I don’t have time to investigate now.
After a quick search, it seems that the cosh and exp windows
families quoted in the Stackexchange forums were presented
by Kemal Avci
> On Feb 10, 2022, at 9:44 AM, Phil Burk wrote:
>
> I wrote an open source sample rate converter for Oboe.
> I found that a hyperbolic cosine window led to fewer aliasing artifacts than
> the Kaiser window.
> The C++ code has no dependencies and may be used in other projects.
>
> https://git
I wrote an open source sample rate converter for Oboe.
I found that a *hyperbolic cosine window *led to fewer aliasing artifacts
than the Kaiser window.
The C++ code has no dependencies and may be used in other projects.
https://github.com/google/oboe/tree/main/src/flowgraph/resampler
Scroll down
> On Feb 9, 2022, at 12:22 AM,
> 017d8cf2f45a-dmarc-requ...@lists.columbia.edu wrote:
>
> I am considering implementing a windowed sinc interpolator. Does anyone have
> any thoughts on what a good window function is? This could be for an audio
> application but not necessarily so.
>
> Jerr
> On Feb 9, 2022, at 2:26 PM, Sound of L.A. Music and Audio
> wrote:
>
> For audio, also Blackman-Harris II.
> My question: WHICH kind of sinc Filter is to be used here?
I’m familiar with Blackman-Harris
(https://en.wikipedia.org/wiki/Window_function#Blackman%E2%80%93Harris_window)
because I
> On Feb 9, 2022, at 3:23 AM, robert bristow-johnson
> wrote:
>
> Kaiser. with beta approximately 5 or 6.
>
>> On 02/09/2022 2:22 AM 017d8cf2f45a-dmarc-requ...@lists.columbia.edu
>> wrote:
>>
>>
>> I am considering implementing a windowed sinc interpolator. Does anyone have
>> any thou
Well, a sinc filter is something like
h(t) = w(t/W) sinc(t/T)
where W is the window width and T is (often) the sampling period.
If you do that, like Hermite or Lagrange polynomial interpolation, then
h(nT) = 0 for every integer n except n=0.
Now, suppose you're just making a simple 2x up
For audio, also Blackman-Harris II.
My question: WHICH kind of sinc Filter is to be used here?
Am 09.02.2022 um 20:23 schrieb Nigel Redmon:
Agreed, with Robert—for audio, Kaiser (aka Kaiser-Bessel) is the go-to, I
haven’t used any other since I figured that out in the ‘80s. It has the right
p
In many applications, polynomial interpolators such as fourth- or
sixth-order hermite, in combination with a good antialiasing filter, offer
more than sufficient quality. They are also cheaper to process, lower in
latency and much easier to implement than windowed sinc interpolation
(especially if
Agreed, with Robert—for audio, Kaiser (aka Kaiser-Bessel) is the go-to, I
haven’t used any other since I figured that out in the ‘80s. It has the right
properties, with the stop band attenuation being easily adjustable, something
that will likely vary for you, depending on requirements (trading
Kaiser. with beta approximately 5 or 6.
> On 02/09/2022 2:22 AM 017d8cf2f45a-dmarc-requ...@lists.columbia.edu wrote:
>
>
> I am considering implementing a windowed sinc interpolator. Does anyone have
> any thoughts on what a good window function is? This could be for an audio
> applicati
I am considering implementing a windowed sinc interpolator. Does anyone have
any thoughts on what a good window function is? This could be for an audio
application but not necessarily so.
Jerry Bauck
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