ZamGEQ31 fails at 44100 Htz when moving the 20k's fader

zamaudio / zam-plugins

Collection of LADSPA/LV2/VST/JACK audio plugins for high-quality processing

http://www.zamaudio.com/?p=976

GNU General Public License v2.0

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ZamGEQ31 fails at 44100 Htz when moving the 20k's fader #68

Closed sub26nico closed 5 years ago

sub26nico commented 5 years ago

I have an issue using ZamGEQ31 with Jack's sample rate at 44100 htz, if I move up or down the fader of 20k's band. The sound of the host (Ardour 5.12, Qtractor 0.9.2, Reaper 5.96) is down until I reset the preset. No issues with sample rate at 48k Htz.

zamplugins 3.10 Distro : LibraZiK2 (audio oriented distro based on Debian Stretch)

jujudusud commented 5 years ago

The 20kHz fader = 22,4kHz in the plugin. You can't use it under 48kHz because of Nyquist ... 2 Solutions :

use it at 48kHz
change the reel band to 44.1/2 = 22.05kHz or under (ultrason domain). Rebuild the plugin...

jujudusud commented 5 years ago

PR #72 is ok when using the plugin on my computer.

sub26nico commented 5 years ago

Same here, with PR #72, I can't reproduce the bug anymore. Moving the 20k fader doesn't make fail the sound of the host anymore (tested ladspa, lv2 and vst in Ardour and Qtractor, and vst in Reaper).

zamaudio commented 5 years ago

Merged