Phase Vocoder Max Msp Patch

1. Phase Vocoder Max Msp Patch 2

This is a non-realtime MATLAB implementation of frequency-domain time-scale modification algorithms by Puckette (1995) and Laroche, Dolson (1999) which take into account vertical phase coherence between channels of the STFT. This type of technique is commonly referred to as the. For more information on these topics see the references below.The file PhaseVocoders.m launches a simple GUI for loading.wav samples, choosing parameters for the algorithms, and previewing and saving the results. The quality of the resulting time-scale modified signals is sensitive to the choice of parameters. The FFT size and overlap follow the standard STFT model for overlapping analysis/synthesis windows.There is a simple peak picking algorithm necessary for the Laroche/Dolson algorithms, which identifies spectral peaks whose amplitudes are larger than their N nearest neighbors and are greater than a certain threshold (to avoid picking peaks in noise or silence). Both of these parameters for the peak picking algorithm can be chosen in the GUI.References:M.

Puckette, “Phase-locked vocoder,” IEEE ASSP Workshop on Applications ofSignal Processing to Audio and Acoustics, 1995.J. Laroche and M. Dolson, “Improved phase vocoder time-scale modification ofaudio,” IEEE Transactions on Speech and Audio Processing, vol. 3, pp.323-332, May 1999. This project is a virtual model of a windchime, built using the physical environment created in IDMIL at McGill's department of Music Technology.

Six chime-like bars are suspended from a fixed top plates using ball joints. When they collide with each other or the center mass, modal synthesis events are triggered in Max/MSP.The modal synthesis patch in Max/MSP consists of three bandpass filters per chime voice (reson objects) which are tuned to the approximate first three modes of a metallic or bamboo woodchime, determined manually using LPC analysis to pick the three largest peaks in the spectral envelope of samples of each type of chime. Each chime collision in DIMPLE sends an OSC message to Max/MSP, triggering a burst of exponentially damped noise whose amplitude is proportional to the velocity of the collision.

The noise excites the filters, producing the synthetic chime sound.Wiimote controls were also added using. The joystick and +/- buttons are used to control the camera pan and zoom, and the acceleration of the wiimote creates virtual 'wind' forces on the chime objects proportional to the amplitude and direction of the acceleration. A video demonstration is shown below.

Please excuse the slightly clicky audio track - the audio was synthesized on a netbook.

Phase Vocoder Max Msp Patch 2

Hey everyone!!Ok so currently im at SAE Institute studying audio engineering and we’ve been given a written assignment task.I’m looking to create a patch that resembles some what, but not entirely takes from Aphex Twin and the type of patches that he may employ.This is purely for educational purposes, so im not looking to rip off or copy cat what he has done in the past. I’m only using this artist as a reference point to have an objective nature to decided what type of patch to create.Here are two examples to show what im exactly inquiring about1. I’m a beginner on these matters, but it seems (to me at least) that he might be using a lot of Phase vocoding & FFT timestretching and then employing a lot of midi-stuttering auto-drum roll type triggering.it also seems like on the ‘Crappy’ track that he uses some time of ‘generative’ music midi patch, to give it this type of reigned in ‘random’ feel to me.This is all just preliminary guess work.But if any of you feel like you could contribute some knowledge of at least point me in the right direction. I would be eternally grateful!!Cheersheadphuq. Couldn't it be that the music of richard d. James is the product of a sound knowledge of his craft (knowing how to program drum machines, how to use different effects, recordings, synths.

Well, if you're ultimately looking to use pd as a plugin for a daw, you're in for a bumpy ride. For windows VST's there's pdvst but it's quite a hassle to make it work in any daw, but it can be done.

I don't know if the same exists for AU.Knowing afx's skills there's quite certainly some fft going. Have a look at the fft objects and the tutorials in the pd help browser (pure data/3.audio examples/Ixx).

There also seems to be a lot of distortion and filtering. For distortion i use hard clipping (clip) soft-clipping (atan) and waveshapping (search the forum). For filtering pd contains a lot of options (hip, lop and bp the most basic ones, then there's also vcf and moog and the buildingblocks are all present to start building your own filters).For stuttering, retriggering and slicing you can do a lot with delaylines (delwrite, delread and vd) and tables (tabwrite, tabread4.). And then there are so many other objects available.Looking forward to you world domination patch and thanks for posting windowlicker, that always makes me laugh.d. Btw he uses a lot of homemade custom/circuitbent electronics, he programmed his own sampler, and he has a LOT of synths and processing hardware. Just so you know, you probably won't be able to get the same sounds with only software easily.also look into metasynth, he was almost definitely using it for the windowlicker ep. You may be able to get similar effects with spear or something similar if you're looking for free versionsalthough I know for repeating sounds he has been known to use ableton's beatrepeat, rjlib has a beatrepeat and I have one as well (see github page in my signature, the object is called repeater), though I'll be changing it soon due to some limitations, and you'd also need the library to use it, which is quite large.

The upside is that attacks are crudely semi-preserved with miller's switch + ramp (whereas rjlib uses fades and ableton's might), and it has a audio control in for pitch shifting. Mine is probably more cpu intensive too, though also is more flexible because it uses a table and you can't clear the built-in delay lines in pd.oh, and there's katjav's sos looper which could be modified for a beatrepeat. Sebfumaster!!cheers for this gonna have a look into it nowjust quickly going back to the patch/AU conversion, as you guys say its nigh impossiblewhat are my options if i wanted to make a phase vocoder patch, would i have to load audio into the patch that way, theres no way i can bus out of Logic 9 into Pure Data, is there?because if so this is a real stress on workflow and fluidityare there any other programmer softwares that have better AU conversion?i was maybe thinking MAX/MSP or Max For Live?but it seems of a bit of a kick in the teeth, to pay that money just for a nicer GUI.

They used to have pluggo which allowed max/msp to run as a plugin but no more. Dare I say supercollider used to have the ability to be run as an au and I think people are starting to do that again, but then you have to learn Supercollider. Not a problem if you're familiar with Smalltalk but I find it much more confusing than c, max/msp, or pd.the only/best thing I can think of would be to do it in integra live which allows pure data patches to run as plugins (modules) with the proper setup, but its not really a dawedit: Integra live actually comes with a phase vocoder in it (implemented as a pd patch).

Look into the subtle use of multi fx units on every sound, too. Those sort of units that have a chain of fx all selectable, like compressor-enhancer-gate-chorus-eq-reverbThat sort of thing.And that doesn't just go for aphex of course. Liam from the prodigy also admits to having used the boss se70 on pretty much everything. Look that unit up. That sort of signal chain will turn a basic stutter into a lovely crisp series of flashes when used properly.Look up old fx units, and then realize that people able to get money for gigs will probably put more of that money into the gear they dig. I know of one unit that afx uses and he has a lot more than just one.

Just go to forums and see what old units people rave about. A lot of them are cheap, even, so you can find one one auctions and then reverse engineer. But even without that, you cajust find the manual and reverse engineer. Right now i'm doing that to the eventide stuff.So, big chains of stuff. Pd is free, so you don't have to worry about price. You can assemble your own sequencers and multi fx as far as your cpu will let you.Once you do that, you'll find that the actual sequencing is kind of simple. It all sounds good when you send it through a chain.