Reply to VCF attenuates gain on high cut-off frequencies on Tue, 24 Mar 2020 13:43:35 GMT

Amelia Pond — Tue, 24 Mar 2020 13:43:35 GMT

Hi,

I'm sure this must be a noob question, so apologies in advance!

I've noticed that the vcf object attenuates the level of signal when cut-off frequencies are set above 6KHz or so when using it with the low-pass outlet. Is this expected behaviour or am I doing something wrong? Shouldn't the sound become louder when fewer frequencies are cut?

If it is expected, are there any ways of mitigating this, other than just boosting the signal on the way out?

Thanks in advance for your help!

Reply to VCF attenuates gain on high cut-off frequencies on Tue, 24 Mar 2020 16:19:45 GMT

jameslo — Tue, 24 Mar 2020 16:19:45 GMT

I'm happy you asked because I've struggled with this too. I've also noticed that the cutoff frequency above which there is attenuation is related to the Q factor, even when filtering sine waves many octaves lower. I've either switched to using [bob~] or just resigned to using a max 5khz cutoff. Hopefully someone will have more insight into this.