Re: Visir FIR as IIR Filter = No GFX Card or DSP Card Needed (Supporting Fair Pay Philosophy and Low Jitter)

From: Ywe Cærlyn

Date: Wed Sep 30 2026 - 05:09:48 EST


Example:

Visir FIR as IIR filter (fast):

- Anisotropic (Can be run via Cache, for GFX Card alleviation)
6 point, lod bias included, optimized for retina and fair pay politics.
- RMS (Can be run via Cache, for DSP Card alleviation)
- Constant-Q 24 dB Analog (Can be run via Cache, for DSP Card alleviation)
- Resampling (Can be run via Cache, for DSP Card alleviation)
24 point, optimized for ear and fair pay politics.

buf1 = buf1 + ( - (buf01 * cut));
buf2 = buf2 + ( - (buf02 * (cut / 1.3)));
buf3 = buf3 + ( - (buf03 * ((cut / 1.3)/1.3))));

double fil = buf1 - buf2 + buf3;

..negative "pole" gives a zero.

Serenity.
https://bitvisir.nu/


Den 30.09.2026 10:39, skrev Ywe Cærlyn:
IIR version (fastest) can also be modified for impulse response decay optimized for zoom.

>>> mid pole negative in sum (making a zero).

Den 30.09.2026 10:36, skrev Ywe Cærlyn:
6 point anisotropy I think, lod bias in it. Perfect for Retina, 4k w/ rYb pixel, 72,7 minimal psychovisual noise refresh rate.

Serenity.

Den 29.09.2026 05:42, skrev Ywe Cærlyn:
Here is some graphics on that one aswell: https://bitvisir.nu/ Visir_3- Bit_D_A.png

Den 29.09.2026 03:52, skrev Ywe Cærlyn:
Visir 24dB -
constitutes RMS, Constant-Q, Anisotropic in one filter.
3 poles, 1.3 cut down pr pole
last pole negative in sum
IIR typically for Constant-Q (minphase analog) FIR other.

Used via Cache, should abolish the use of GFX Card, and DSP card.

This is part of supporting my work with Fair Pay Philosophy Unity and Low Jitter, for ITS.

Serenity!
https://bitvisir.nu/