Search found 9 matches

by dergundel
Sat May 21, 2022 7:50 am
Forum: PS-20 Synthesizer
Topic: adding portamento to sequencer channels
Replies: 1
Views: 5133

adding portamento to sequencer channels

Just a suggestion: I used to own both a MS 20 and a SQ 10 way back in the 80s. And with the possibility to have portamento on each of the sequencer channels I was able to create sequences with a punchy kickdrum in one sequence just by having a small amount of portamento. I miss this feature on the P...
by dergundel
Sat May 15, 2021 10:13 am
Forum: PS-20 Synthesizer
Topic: PS-20 Filter
Replies: 1
Views: 1692

Re: PS-20 Filter

Sorry, second screenshot was missing...
by dergundel
Sat May 15, 2021 10:04 am
Forum: PS-20 Synthesizer
Topic: PS-20 Filter
Replies: 1
Views: 1692

PS-20 Filter

Immediately purchased the PS-20 today, very nicely laid out indeed bringing back memories, I once owned a MS-20 way back in the 80s. But I am not very happy with the filter. You easily can get it screaming (high peak and drive) but I wasn't able to create a more decent filter sweep with medium peak ...
by dergundel
Sat Nov 07, 2020 8:54 pm
Forum: CA2600 Synthesizer
Topic: ca 4 pole filter , fake or not
Replies: 24
Views: 14073

Re: ca 4 pole filter , fake or not

And the CA2600...
by dergundel
Sat Nov 07, 2020 8:53 pm
Forum: CA2600 Synthesizer
Topic: ca 4 pole filter , fake or not
Replies: 24
Views: 14073

Re: ca 4 pole filter , fake or not

Sorry, seems as if the two other screenshots didn't make it online.
by dergundel
Sat Nov 07, 2020 8:50 pm
Forum: CA2600 Synthesizer
Topic: ca 4 pole filter , fake or not
Replies: 24
Views: 14073

Re: ca 4 pole filter , fake or not

I did some testing with filter self oscillation and as shown all three 2600 emulations behave quite similarly, the filter of all three synths pass a lot of signal below the cutoff frequency when resonance is turned to 100%. Also I found that the filter is able to self oscillate without input, what y...
by dergundel
Thu Nov 05, 2020 8:16 am
Forum: CA2600 Synthesizer
Topic: ca 4 pole filter , fake or not
Replies: 24
Views: 14073

Re: ca 4 pole filter , fake or not

Hi,
just tried build 86 and this is looking way better. Resonance has to be over 95% though to be comparable with the other 2600 synths but now they behave quite similar.
by dergundel
Wed Nov 04, 2020 6:47 pm
Forum: CA2600 Synthesizer
Topic: ca 4 pole filter , fake or not
Replies: 24
Views: 14073

Re: ca 4 pole filter , fake or not

Hi, I tried my best. Both synths behave a bit different, but you can clearly see, that there is a considerable resonance peak (at 90% with Arturia and about 70% with TimewARP) but it is building gradually around the cutoff frequency, getting steeper and steeper as the resonance is increasing. There ...
by dergundel
Wed Nov 04, 2020 3:17 pm
Forum: CA2600 Synthesizer
Topic: ca 4 pole filter , fake or not
Replies: 24
Views: 14073

Re: ca 4 pole filter , fake or not

Hello gentleclockdivider, good finding! I can confirm this strange behaviour of the filter. I compared high resonance settings with Arturia’s ARP2600 V3 and WayOutWare’s TimewARP 2600 just feeding a simple sawtooth into the filter. Sweeping the filter you typically get a reinforcement of the partial...

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