[music-dsp] Errata in The Art of VA Filter Design 2.1.0

Hi there, really appreciate your VA book. I am reading version 2.1.0 and I think I spotted an error:  on page 93, the text goes: "In this respect consider that Fig. 3.12 is trying to explicitly emulate the analog integration behavior, preserving the topology of the original analog structure,

Re: [music-dsp] WAV player instrument recommendation

Pure Data ?  puredata.info On Thursday, 14 June 2018, 17:08:30 BST, Dave Carpenter wrote: Can anyone recommend some simple software available that would allow me to attach a MIDI keyboard controller to my Windows PC and play individual .wav files that I provide for each note? Like C4.wav,

Re: [music-dsp] denormals on ARM processors ?

The functions here  https://github.com/BelaPlatform/Bela/blob/master/core/math_runfast.c will allow to manipulate "fast" mode for ARM vfp (making it non-IEEE-754 compliant). If you are using the NEON SIMD (you should!) then it always flushes to zero (which is one of the reasons why NEON is

Re: [music-dsp] advice regarding USB oscilloscope

Perhaps only tangentially related, but Bela - of which I am one of the developers - comes with a browser-based oscilloscope as part of its IDE. This allows you to generate both analog inputs and internally, digitally-generated signals, e.g.:https://www.youtube.com/watch?v=o9kLZ--js1k

Re: [music-dsp] Help with "Sound Retainer"/Sostenuto Effect

s to the buffer processing rate. I'd love to have a go at doing this kind of stuff on something like a SHARC where 16kpt FFTs are apparently easy to do at audio rates... Eric On 09/16/2016 11:15 AM, Giulio Moro wrote: > Nice that it runs on the M4F, what FFT size, overlap and audio >

Re: [music-dsp] Help with "Sound Retainer"/Sostenuto Effect

we added some fun little tweaks to shift, stretch and randomize the spectrum. It runs nicely on an STM32F405 ARM Cortex M4F processor. Eric On 09/16/2016 10:59 AM, Giulio Moro wrote: > Hi, > I actually implemented this a few years back using an FFT algorithm, I > can dig out the code i

Re: [music-dsp] Help with "Sound Retainer"/Sostenuto Effect

Hi,I actually implemented this a few years back using an FFT algorithm, I can dig out the code if you need it (it was a VST written using Juce and fftw, but there was no threading on the FFT if I remember correctly, so it is flawed as it is and it requires running with large blocksizes.I doubt

Re: [music-dsp] Will Pirkle's "Designing Software Synthesizer Plug-Ins in C++"

No pun intended > On 14 Jun 2016, at 23:59, James McCartney wrote: > > I also like this book. > This diagram on page 173, is especially good: > > http://i.imgur.com/lNiYzxJ.jpg > > > >> On Tue, Jun 14, 2016 at 10:29 AM, David Lowenfels >>

Re: [music-dsp] Android related audio group / mailing list?

Also, only way to actually know if your compiler generates Neon is to ... read the assembly! Some common DSP tasks are implemented in the Ne10 library  http://projectne10.github.io/Ne10/doc/ which compiles to Neon on systems that support it. I have seen that nova_simd is good at generating neon

Re: [music-dsp] Android related audio group / mailing list?

Hello,I watched the google/android video the other day and I was very surprised of the basic recommendations that were given to developers:- use native sampling rate (don't hardcode sampling rate, request it from the device) - use native buffering (don't hardcode it. But then maybe use double or

Re: [music-dsp] *** GMX Spamverdacht *** Bela low-latency audio platform

Hi,I am one of the developers.Sure you can use your editor of choice. The browser-based IDE is a convenient, ready-to-go solution which acts as a front-end for the building scripts we provide, which build the code on the board. The scripts can, alternatively, be reached through the command

Re: [music-dsp] Changing Biquad filter coefficients on-the-fly, how to handle filter state?

Have a look at these G. Stoyanov and M. Kawamata, “Variable digital filters,” J.Signal Processing, vol. 1, no. 4, pp. 275–289, 1997. J. Laroche, “On the stability of time-varying recursive filters,”Journal of the Audio Engineering Society, vol. 55, no.6, pp. 460–471, 2007.  V. Välimäki and T.I.

Re: [music-dsp] automation of parametric EQ .

This paper on the Audio Effects Ontology extension shows a possible direction towards unified parameters for a given class of effects (see, e.g.: sec 4.3  Effect Parameters)http://ismir2013.ismir.net/wp-content/uploads/2013/09/41_Paper.pdf Disclaimer: I work in the same research group as the

Re: [music-dsp] Instant frequency recognition

I guess my point is that I'm struggling to think of an application where  such strong prior knowledge exists, and where we'd still need to estimate frequencies from data. One such application would be a CV to controls(Midi,OSC,whatever) converter. As virtually all the soundcard inputs are AC