Re: [music-dsp] Computational complexity of common DSP algorithms

to be zero-delay, you can apply it willy-nilly in decision feedback decoding, on the coding side. And since it's guaranteed to be optimal on the LTI side of things, and it's a fully neutral, general, and provably efficient LTI-DSP primitive, why not take advantage of it...? ;) -- Sampo Syreeni

[music-dsp] the dominance transformation

dominance for good. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 ___ dupswapdrop: music-dsp mailing list music-dsp@music.columbia.edu https://lists.columbia.edu/mailman

Re: [music-dsp] Auto-tune sounds like vocoder

erms after remodulation. Those terms will have infinite degree, because of the 1/f term in both time and frequency, after remodulation. This makes the optimum solution hard to find, even under the 1/f, 1/t symmetry we already know the continuous statistics of the problem dictate. -- Sampo Sy

Re: [music-dsp] Sampling theory "best" explanation

nfunctions, harmonical analysis, and the rest of the cool stuff. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 ___ dupswapdrop: music-dsp mailing list

Re: [music-dsp] basic in-store speaker evaluation

es between devices. If you're only doing comparisons, you don't need that. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 ___ dupswapdrop: music-dsp mailing list

[music-dsp] basic in-store speaker evaluation

it needn't distort any nonlinear measurement such as THD, per se. Is there an app for that already? -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 ___ dupswapdrop:

Re: [music-dsp] ± 45° Hilbert transformer using pair of IIR APFs

they have the channels in order, or with half of them frequency inverted? What could they be used for? -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 ___ dupswapdrop

Re: [music-dsp] ± 45° Hilbert transformer using pair of IIR APFs

of "envelope" are you working with, Eric? Finally, there are other meanings. The psychoacoustical ones in particular. Which I'm not too well versed with. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E

Re: [music-dsp] ± 45° Hilbert transformer using pair of IIR APFs

o what you originally had, even if it converged to *something* good. :) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 ___ dupswapdrop: music-dsp mailing list

Re: [music-dsp] Using an actual database for storage of DSP settings

e anything specialized towards sound, but in what career I did once have, I've modelled my fair share of data within the relational framework. If you need help in that regard, I'm available. Enthusiastic, even. :) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E

Re: [music-dsp] Anyone think about using FPGA for Midi/audio sync ?

anymore. Certainly not music. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 ___ dupswapdrop: music-dsp mailing list music-dsp@music.columbia.edu https://lists.

Re: [music-dsp] BW limited peak computation?

hase stuff, and then take note of how rapidly your interpolands grow, for an approximation of what you should do wrt amplitude. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9

Re: [music-dsp] how to derive spectrum of random sample-and-hold noise?

ink noise, yes. But in a discrete time process you have to factor in aliasing. It goes pretty bad, pretty fast. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2

Re: [music-dsp] how to derive spectrum of random sample-and-hold noise?

d jump into the fray pretty late. :) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2___ dupswapdrop: music-dsp mailing list music-dsp@music.columbia.edu https://lists.

[music-dsp] about acoustical energy

on that. Because that way our DSP-sport ain't just about abject numbers anymore; it has something to do with the real world as well. Its numerics, its physical acoustical counterparts, and whatnot. :) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175

[music-dsp] 20k

pleasing? If so, maybe we should actually speak more about how we hear and feel, in respect to our algorithms? And not so much about how to make an acoustical simulation just right? ;) (And yes, sorry again, I have a tendency to get carried of a bit. No harm, no foul, right...) -- Sampo Syreeni, aka

Re: [music-dsp] [ot] 20k

long, even with fast convolution, seems to me to be outa reach of a modern laptop or desktop PC to do in real time. No shit! :D -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9

Re: [music-dsp] music-dsp Digest, Vol 2, Issue 47

transforms, because doing it in silico saves so much power/battery. For that reason there's hardly an appliance out there with an audio or video output which doesn't have some Fourier minded machinery imprinted on its very hardware. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/fro

Re: [music-dsp] [ot] 20k

) papers on such architectures. Obviously, that stuff is pretty specialised and totally irrelevant to audio DSP. But every now and then, sure, even something as insane as this really *is* done. ;) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175

Re: [music-dsp] 20k

of samples long that way in real time, as opposed to perhaps thousands or tens of thousands in the direct form. So if you can at *any* cost avoid the direct calculation, you would. ;) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494

Re: [music-dsp] Compensate for interpolation high frequency signal loss

. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 ___ music-dsp mailing list music-dsp@music.columbia.edu https://lists.columbia.edu/mailman/listinfo/music-dsp

Re: [music-dsp] Compensate for interpolation high frequency signal loss

, 0, 0, 0... Just phase shift the original sine at the Nyquist frequence. That'll show you that that precise signal cannot be reconstructed without resorting to complex continuation of the signal, on the Fourier plane. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358

Re: [music-dsp] Compensate for interpolation high frequency signal loss

necessarily hurt, but here it isn't guaranteed to do any good either. And it's close to doing something bad instead. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2___

Re: [music-dsp] Compensate for interpolation high frequency signal loss

order, and if you do something like 4th to 5th order with 2x oversampling, it's essentially perfect. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2___ music-dsp

Re: [music-dsp] Non-linearity or filtering

the dither stream available for subtraction. You can imagine why I've been playing with this stuff of late. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 ___ music-dsp

Re: [music-dsp] [ot] about entropy encoding

Shannon's framework. i didn't know that. it appears to me to be different, almost orthogonal to the Shannon thing. It does, but only because practical implementations can't work with the bigger than universe codebooks and Markov chains Shannon's mathematical analysis admits. -- Sampo Syreeni

Re: [music-dsp] [ot] about entropy encoding

-19a in data compression theory. I even feature in the oldskool comp.compression FAQ wrt Burrows-Wheeler Transformation, as the first guy who explained its compression half to the wider net audience. Remind me, when were you born again? ;) -- Sampo Syreeni, aka decoy - de...@iki.fi, http

Re: [music-dsp] Non-linearity or filtering

of the most high minded I've *ever* seen in the field -- actually backs down to something besides the ideal. Because it's not just audio theory, it's about practicable solutions as well. I think you ought to be thinking about the same for a change. ;) -- Sampo Syreeni, aka decoy - de...@iki.fi

Re: [music-dsp] A little frivolous diversion on the effect of using a delay

at Aalto. It's entirely predicated on this sort of thing in its reverb leg. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 ___ music-dsp mailing list music-dsp

[music-dsp] [ot] about entropy encoding

straight into formulae and simulations. That sort of thing of course sidetracks you from really getting the wider picture...and as in here, particularly the edge cases like periodicity and such. :) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175

Re: [music-dsp] Sampling theorem extension

of the discussion, in *musical* DSP? It sounds like crap, move along, nothing to hear here. or, paraphrasing Duke Ellington, if it sounds like crap, it IS crap. Oh, *yes*. :) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509

Re: [music-dsp] Sampling theorem extension

? In addition to and in separation with the amplitude/modulus side? Because it's rather different, and might help explain a couple of things in addition to what we've talked about inb4. :) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494

Re: [music-dsp] Sampling theorem extension

and behaves nastily under change of parameters. So then isn't that the end of the discussion, in *musical* DSP? It sounds like crap, move along, nothing to hear here. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2

Re: [music-dsp] Sampling theorem extension

it that complicated? -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2-- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book reviews, dsp links http

Re: [music-dsp] Sampling theorem extension

help it, been looking at a lot of stand up comedy of late...) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive

Re: [music-dsp] Sampling theorem extension

that growth rates upto polynomial don't matter at all. Of course some funky global, dual shit happens then: you actually need all of the samples from -inf to +inf in order to define any polynomial, and no finitely supported in time subset will suffice. -- Sampo Syreeni, aka decoy - de...@iki.fi, http

Re: [music-dsp] Sampling theorem extension

. :) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book reviews, dsp links http

Re: [music-dsp] Sampling theorem extension

-yadda, it's what them chips do all the time for us. Right? ;) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive

[music-dsp] [ot] math vs. EE

* that shit. Cool sister bedamned. ;) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book reviews

Re: [music-dsp] Sampling theorem extension

duality works as it should, and via the Schwartz Representation Theorem captures the asymptotic growth of tempered distributions. But how you'd utilize that in DSP or with its oversampling problems is thus far beyond me. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40

Re: [music-dsp] Sampling theorem extension

in the distributional setting, with its functionals and only a local sense of integration. Trying to interpret something like that the way we do in conventional L_2 theory sounds likely to lead to pain. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E

[music-dsp] [ot] other than sampling theorem, Theo

reasonably sure it is you who is humiliating himself. But of course I'm open to being proved wrong. Why not do the test? -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2-- dupswapdrop -- the music-dsp mailing list

Re: [music-dsp] Sampling theorem extension

of a sequence of windowed sinc convolutions. The trouble is that once you go with such a local description, you start to introduce elements of shift-variance. That sort of thing automatically breaks down most of the nice structure we have with more conventional Fourier transforms. -- Sampo Syreeni, aka

Re: [music-dsp] Did anybody here think about signal integrity

individual special functions, like FM, usually nonlinear. But even those have standard texts which deal with their approximation theory within the bandlimited framework. If you aim to get things done, as I think an engineers usually does, why the hell bother with more? -- Sampo Syreeni, aka decoy

Re: [music-dsp] Did anybody here think about signal integrity

distributions I mentioned above. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2-- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book reviews, dsp

Re: [music-dsp] Calculating e^(i*phase) * (H + H')

summed in by the fact that you only used a real transform, to and fro. (I'm nowhere sure though.) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website

Re: [music-dsp] FFT and harmonic distortion (short note)

, something must have gone wrong, where is it. But yeah, you ought to know about this stuff already. Theo at the very least. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp

Re: [music-dsp] English as a second language - measuring voice similarity

might have similar ideas about language, but should it be that they get judged on the basis of how well they can mimic a certain language style, or on the content of which they have to say ? Sometimes, in fact yes. Most of the time, of course not. It depends. -- Sampo Syreeni, aka decoy - de

Re: [music-dsp] Statistics on the (amplitude) FFT of White Noise

the Gaussian distribution to the von Mises one, and then learn to deal with the fact that when you live on a circle, concepts like phase and its continuity become a bit harder to deal with. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0

Re: [music-dsp] Statistics on the (amplitude) FFT of White Noise

transformation, just take the DCT and Walsh bases. Not only do the common cases translate differently under those bases, the whole ensemble does, too. Because the Walsh-Hadamard basis doesn't respect time/shift translation symmetry, like the more common Fourier bases by definition do. -- Sampo

Re: [music-dsp] Statistics on the (amplitude) FFT of White Noise

, and then if you just chose a minority, nice basis, you should be able to found that choice on something. So why is it that you seem to found your analysis on a Fourier basis? E.g. Gabor derived complete bases do have some theory behind them as well, as do overcomplete time-frequency bases. -- Sampo Syreeni

Re: [music-dsp] Statistics on the (amplitude) FFT of White Noise

examples I use, they will come together at undergrad level just fine! Oh, but you do, and we'd fuck up your thesis instructor as well. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp

Re: [music-dsp] entropy

the precise same fundamental framework. Seriously, there is no difference. It's just that I and many others find that framework unduly limiting. Especially for any analysis involving noise. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C

Re: [music-dsp] Release pyo 0.7.2 (Python dsp library)

? -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2-- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book reviews, dsp links http

Re: [music-dsp] Release pyo 0.7.2 (Python dsp library)

. Even saying I dunno in return is well enough. Saying tell me more is even better. And if you then tell us how you did it better than we thought was possible...well then now *you* are the Master. Don't underestimate the old master, though... ;) ) -- Sampo Syreeni, aka decoy - de...@iki.fi, http

Re: [music-dsp] entropy

, for computational *complexity* reasons; cf. Greg Chaitin too, if you want to really fuck mind up in descriptive complexity ;) ). -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing

Re: [music-dsp] entropy

basic framework *just* that little bit better within the discourse. :) ) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ

Re: [music-dsp] entropy

? If so, howso? -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book reviews, dsp links http

Re: [music-dsp] entropy

then we can talk clearly about the *much* harder topic that is perceptual information theory. :) -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website

Re: [music-dsp] entropy

of things here already. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book reviews, dsp

Re: [music-dsp] entropy

you're done, also do it under noise (a much nastier proposition, I can tell you). -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ

Re: [music-dsp] entropy

researchers at cryptography -list taught me well better in just a couple of messages. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ

Re: [music-dsp] entropy

theory textbook I already linked for you, shut up for a little while, read it, do all of the homework, and then come back. It's not just that you annoy folks a bit. It's also that you'll never learn otherwise. It's for your own good, boy. ;) -- Sampo Syreeni, aka decoy - de...@iki.fi, http

Re: [music-dsp] entropy

source which always changes state has the maximum entropy? 010101010101010101010101... ...is always maximally informative to the receiver, even if that was the only message possible? With probability 1? -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353

Re: [music-dsp] entropy

it was generated. Where is the information, from *your* viewpoint? Maybe I'm one of those cryptographers you're afraid of ;) That remains to be seen. With 1/100 probability. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509

Re: [music-dsp] entropy

no more or less information was passed; your context is the same. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code

Re: [music-dsp] entropy

been celebrated as a mathematician who quantified information once and for all. Not you. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription

Re: [music-dsp] entropy

On 2014-10-12, Peter S wrote: Rather, please go and read some cryptography papers about entropy estimation. Then come back, and we can talk further. PLONK. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2

Re: [music-dsp] #music-dsp chatroom invitation

and phase offset. Exactly. Plus of course if you allow mixtures as well, then you're into the same territory that Fourier analysis covers, except that your transform is much less well behaved. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5

Re: [music-dsp] #music-dsp chatroom invitation

of course brings us back to your very point: Peter really should understand the basics of information theory before applying it. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp

Re: [music-dsp] #music-dsp chatroom invitation

, okay, not perhaps in the foundational papers, but in pretty much everything that is worth writing about and interesting enough to be read. That skews your thinking and especially your vocabulary rather a bit, and makes you less than an ideal pedagogue. -- Sampo Syreeni, aka decoy - de

Re: [music-dsp] #music-dsp chatroom invitation

of Corti as a whole piece of a closed loop control system whose overall function is *still* not exhaustively understood. That's pretty far from how we typically understand filterbanks, so one shouldn't take the analogy too far. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front

Re: [music-dsp] Filtering out unwanted square wave (Radio: DCS/DPL signal)

upon sampling gives you a noise tolrant estimate of what should be subracted. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2-- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ

Re: [music-dsp] Instant frequency recognition

of conditions, e.g. using just three successive samples as input, and those kinds of solutions are actually in use. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list

Re: [music-dsp] Simulating Valve Amps

-computations not only take memory bandwidth but the kind of low latency which just isn't there. That's why we're seeing this kind of technology in offline plugins, but the musicians still play analog instruments. Which of course have zero latency. ;) -- Sampo Syreeni, aka decoy - de...@iki.fi, http

Re: [music-dsp] Simulating Valve Amps

On 2014-06-19, Rohit Agarwal wrote: I'm surprised by that statement quite honestly. At a tempo of 200 bpm, this latency would be roughly 10% of the beat interval which seems to me quite small. Then you obviously don't know techno. ;) -- Sampo Syreeni, aka decoy - de...@iki.fi, http

Re: [music-dsp] Simulating Valve Amps

operations just don't feed back to the operands, like they used to. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code

Re: [music-dsp] a weird but salient, LTI-relevant question

, or the splice point can be heard. So, Theo, no analog processing here. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source

Re: [music-dsp] a weird but salient, LTI-relevant question

high frequencies is ostensibly not linear behavior. Of course. But then, this kind of a test shows that that human hearing has even a further, LTI-kinda-looking aspect, which doesn't have to do with those curves either. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358

Re: [music-dsp] a weird but salient, LTI-relevant question

. After that it ain't noise anymore. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book

Re: [music-dsp] Correctable signal processing (to arrive at wire connection)

in a real-time situation, and wanted to compensate the small (few dBs here and there) the frequency sensitivity unevenness of the microphone I used, and applied some jack/jack-rack/ladspa Linux filters for that. Worked great. But did it actually constitute a digital wire? -- Sampo Syreeni, aka decoy

[music-dsp] a weird but salient, LTI-relevant question

subject their loved ones to the test. Because, I mean, at least for me this was a total mindfuck, and if you analyze it e.g. via the usual LTI theory of human hearing, the results do not make any sense at all. I think, but I'm not too sure. Whence the question. ;) -- Sampo Syreeni, aka decoy - de

Re: [music-dsp] Combining ADCs/DACs to increase bit depth?

of thing is nigh-nonexistent, as are the patents. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list

Re: [music-dsp] Does a neutral wire exist

you don't anticipate it (this happens in audio editing programs), no volume change, etc. ? Rather often. It's even an idiom since times immemorial: the bypass switch. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9

Re: [music-dsp] Audacity Unconference 2014 (AU14)

as slow, deleterious and over all editable as well. Kind of like a million giraffes very close to each other You can't claim it wouldn't be cool, but... -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2

Re: [music-dsp] Nyquista?Shannon sampling theorem

not such a problem because the aesthetics favour lively halls and steady state content, but anything electronic or percussive, with lots of sharp transients and a wide bass extension simply turns to mush. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5

Re: [music-dsp] Dither video and articles

, in a dependable manner and using clean code. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book

Re: [music-dsp] Dither video and articles

critical of Theo's and other audiophile minded folks' claims over things like ultrahigh fidelity formats, I must say their understanding of traditional analog EE and background in tinkering with it probably make them better armed to deal with this side of the field than I'll ever become. -- Sampo

Re: [music-dsp] Nyquist-Shannon sampling theorem

of the Delta). They just work and make your life *much* easier than you ever had it with plain old functions. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website

Re: [music-dsp] Nyquist–Shannon sampling theorem

. For there lies salvation, and the app which pays your bills. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list

Re: [music-dsp] Nyquist-Shannon sampling theorem

, and surprisingly often just grant that you're for now at your wit's end. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2-- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source

Re: [music-dsp] Nyquista?Shannon sampling theorem

in the percussive section. Of course some bright fella then also went ahead and invented a speaker coupled right downto static pressure, presumably just to piss the rest of us off: https://en.wikipedia.org/wiki/Rotary_woofer . I should also go kill myself just about now. -- Sampo Syreeni, aka decoy

Re: [music-dsp] Dither video and articles

not to use dither and noise shaping. I’ll be putting up some additional test files in an article on ear level.com in the next day or so. In any case, thank you kindly. Dithering and noise shaping, both in theory and in practice is *still* something far too few people grasp for real. -- Sampo

Re: [music-dsp] Inquiry: new systems for Live DSP

magnitude rolloff. The call's out on such things, nobody really knows if there's any point to them. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website

Re: [music-dsp] The Uncertainties in Frequency Recognition

. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book reviews, dsp links http

Re: [music-dsp] The Uncertainties in Frequency Recognition

. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book reviews, dsp links http

Re: [music-dsp] Negative PCA coefficients

hope this helps at least a bit. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book reviews, dsp

Re: [music-dsp] Iterative decomposition of an arbitrary frequency response by biquad IIR

. Pretty sure that literature has to contain the relevant algorithms if used with just a single resonance. Or then just go with second order linear prediction from the impulse response, and transform back to biquad coefficient space. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi

Re: [music-dsp] Mastering correction by FFT-based filtering followed by 1 octave or 1/10 octave equalizer

, the end result at least to me just seems hazier than the original. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code

Re: [music-dsp] R: Best way to do sine hard sync?

while the area under the negative and positive halfcycles is still equal (that's one way to approach a delta/an impulse). In all cases you'll probably be using a leaky integrator, so getting rid of the DC, because otherwise you risk blowing up the integrator state. -- Sampo Syreeni, aka decoy

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