Question about C program source code

[bk1412]

When I used the loudness_zwtv function to analyze some audio, I found that its running speed was very slow. The same is true for the roughness_dw function. I learned from the comments of the loudness_zwtv function that the mosqito project seems to have the source code of the C program version. Someone can provide it What, I want to improve the speed of operation by using the C program version of the function

there is the comments

"""Calculate Zwicker-loudness for time-varying signals
Calculate the acoustic loudness according to Zwicker method for
time-varying signals.
Normatice reference:
DIN 45631/A1:2010
ISO 532-1:2017 (method 2)
The code is based on C program source code published alongside
with ISO 532-1 standard.

[mlotinga]

The place to find software routines associated with standardised signal processing methods is https://standards.iso.org/iso/. For example, look in there for the 532 folder, and within each subfolder, a software tool (either C or Matlab depending on the corresponding part of the ISO) is provided.