How about freezing and stretching moments. Is this resonance? > On Jul 22, 2018, at 21:10, robert bristow-johnson <[email protected]> > wrote: > > > I've been wondering about the connection that resonance and filter orders at > least 2. That's 2 delays (and feedback). > > But if you're limiting the resonant frequencies to DC and Nyquist, then with > a one-sample delay digital filter, you can have something like "resonance". > > Even if the single delay is two samples long (but no tap in the middle), > that allows only DC, Nyquist, or half-Nyquist as tunable frequencies. > > So just sayin, in another sense of the word, that "resonance" can be had with > a single *long* delay and one feedback path or with two arbitrarily short > delays and two feedback paths. > > > > -- > r b-j [email protected] > > "Imagination is more important than knowledge." > > > > > > -------- Original message -------- > From: Stefan Sullivan <[email protected]> > Date: 7/22/2018 2:20 PM (GMT-08:00) > To: A discussion list for music-related DSP <[email protected]> > Subject: Re: [music-dsp] What is resonance? > > Yes. The term helmholz resonator should be a hint ;) Basically when a sounds > gets added to itself after a delay you end up adding energy to the frequency > that corresponds to that delay amount. For very long echos we don't hear it > as a resonance, but for shorter delays it will boost higher and higher > frequencies into the audible range. > > Stefan > > On Sun, Jul 22, 2018, 08:10 <[email protected] > <mailto:[email protected]>> wrote: > Hello all > > Is "feedback with delay" really resonance? I recognize many people describe > the effects of "room resonanes this way", but to my understanding these are > no resonances in the basic meaning but reflections. A resonance is a self > standing oscillating system like a guitar string or an air mass in a > Helmholtz resonator. > > Rolf > > Gesendet: Samstag, 21. Juli 2018 um 04:33 Uhr > Von: "Andrew Simper" <[email protected] <mailto:[email protected]>> > An: "A discussion list for music-related DSP" <[email protected] > <mailto:[email protected]>> > Cc: [email protected] <mailto:[email protected]>, > [email protected] <mailto:[email protected]>, > [email protected] <mailto:[email protected]> > Betreff: Re: [music-dsp] What is resonance? > Resonance is just delay with feedback. Resonance occurs when you delay a > signal and then feed it back with some gain to the input of the delay "in > phase" > > _______________________________________________ > dupswapdrop: music-dsp mailing list > [email protected] <mailto:[email protected]> > https://lists.columbia.edu/mailman/listinfo/music-dsp > <https://lists.columbia.edu/mailman/listinfo/music-dsp>_______________________________________________ > dupswapdrop: music-dsp mailing list > [email protected] > https://lists.columbia.edu/mailman/listinfo/music-dsp
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