Re: [music-dsp] resonance

2011-01-01 Thread Nigel Redmon
Done. On Jan 1, 2011, at 4:02 PM, Nigel Redmon wrote: > ("Reson w/ Zeros" is a bandpass filter, which I didn't happen to put in my > biquad calculator on the first pass--meant to go back and add it...) -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code

Re: [music-dsp] resonance

2011-01-01 Thread Nigel Redmon
Very cool applet--thanks. Too bad you can't can't mess with resonance on the lowpass filters, since that's the more typical synth usage. ("Reson w/ Zeros" is a bandpass filter, which I didn't happen to put in my biquad calculator on the first pass--meant to go back and add it...) On Jan 1, 20

Re: [music-dsp] resonance

2011-01-01 Thread James Chandler Jr
Great explanation, Ross. Q would seem to semantically fit better than resonance, with notch filters or allpass filters? For example a high-Q notch filter would have a very narrow notch, but I think a true notch filter would theoretically have an infinitely deep notch exactly at Fc. Only theoret

Re: [music-dsp] resonance

2011-01-01 Thread Nigel Redmon
Good answer from Ross--also, if you want to look at it graphically, you can see what it looks like on a biquad here: http://www.earlevel.com/main/2010/12/20/biquad-calculator Set Plot to "log" (so you can see it in the more typical "dB per octave" view), and set Q to 10, for instance. That give

Re: [music-dsp] resonance

2011-01-01 Thread Alan Wolfe
I found this link by reading the link you sent me and wandering around related wikipedia pages http://www.falstad.com/dfilter/ kinda neat applet! Playing around with the resonating filters i can see more of what you were talking about and see how they work. On Sat, Jan 1, 2011 at 3:23 PM, Alan

Re: [music-dsp] resonance

2011-01-01 Thread Alan Wolfe
Thanks a bunch Ross (: On Sat, Jan 1, 2011 at 1:54 AM, Ross Bencina wrote: > Alan Wolfe wrote: >> >> I have a future retro revolution (303 clone) and one of the knobs it >> has is resonance. >> >> Does anyone know what resonance is in that context or how it's >> implemented? >> >> I was reading s

[music-dsp] [admin] music-dsp FAQ

2011-01-01 Thread douglas repetto
Hi, Just a reminder that if you are new to the list you should read the music-dsp FAQ. It contains answers to both technical _and_ adminstrative questions that often come up on the list. If your question appears in the FAQ it is safe to assume that it has been discussed on the list many times in t

Re: [music-dsp] resonance

2011-01-01 Thread Ross Bencina
Alan Wolfe wrote: I have a future retro revolution (303 clone) and one of the knobs it has is resonance. Does anyone know what resonance is in that context or how it's implemented? I was reading some online and it seems like it might be some kind of feedback but I'm not really sure... In ge