[SciPy-Dev] SciPy Contribution: Gammatone Filters in scipy.signal

[Todd]

I would be extremely interested in having gammatone filters implemented.
I have been wanting it for a long time, but haven't gotten around to doing
it myself yet.  But I don't speak for the scipy core developers, they would
need to weigh in on this.

On Thu, Feb 27, 2020 at 11:16 AM Shashaank Narayanan <
shashaank.n at columbia.edu> wrote:

> Hi,
>
> Newbie here. I just wanted to follow up on the Gammatone filters for
> signal processing contribution idea that I posted recently. I would also be
> interested in contributing to SciPy by doing maintenance/bug fixes for the
> scipy.signal module.
>
>
> Thanks,
> Shashaank
>
> On Thu, Jan 30, 2020 at 5:38 PM Shashaank Narayanan <
> shashaank.n at columbia.edu> wrote:
>
>> Hello SciPy Team,
>>
>> I am new to this mailing list, and I am interested in contributing to
>> SciPy. I would like to suggest a new feature to be added to the
>> scipy.signal module: gammatone filters. Gammatone filters are becoming
>> increasingly popular in the fields of digital signal processing and music
>> analysis as it effectively models the auditory filters of the human
>> auditory system. Currently, there are very few implementations of gammatone
>> filters available for Python, and these implementations are not generalized
>> to basic finite impulse response (FIR) and infinite impulse response (IIR)
>> filters like SciPy has.
>>
>> I have written my own gammatone FIR filter using NumPy based on Malcolm
>> Slaney's 1993 paper on the topic (
>> https://engineering.purdue.edu/~malcolm/apple/tr35/PattersonsEar.pdf).
>> This paper was used for Matlab's implementation of gammatone filters. I am
>> in the process of writing a gammatone IIR filter with NumPy and SciPy.
>> Please let me know if this feature will fit with the scipy.signal module.
>> Appreciate your time and guidance.
>>
>>
>> Thanks,
>> Shashaank
>>
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