ArcticVLF: test ArcticVLF: hello anechoic: hey Miulew: hi from sweden! (bjoern) Eto Ami: konnichiha ArcticVLF: hello from ohio anechoic: ok I am not moderating this but act as a guide anechoic: we can start by asking quesitons anechoic: or stating parts that seemed interesting ArcticVLF: I'll be lurking a bit cause i don't have the book yet anechoic: or how we might use the techniques in our own work anechoic: that's fine if you haven't read the book ArcticVLF: ok anechoic: you can still get something out of these book clubs ArcticVLF: great anechoic: so does anyone have anything they want to start with? anechoic: oh and mispelling is OK ArcticVLF: ok thats a plus :) anechoic: due to the typing at a quick rate typos are OK Miulew: i guess we focus on chapter 3 anechoic: yes we will be covering chapter 3 Eto Ami: granulation, yes? anechoic: yes anechoic: does anyone have q's aboout what a grain is? ArcticVLF: its a fragment of a sound right? ArcticVLF: sorry for any stupid questions ;) anechoic: there are no stupid questions here ArcticVLF: ok anechoic: maybe stupid answers! ;) ArcticVLF: heh Miulew: it was nice to listen to the cd with different examples on granular synthesis anechoic: but yes if you turn to pg 86 you will see the basic idea of a grain anechoic: it is essentially a waveform modulated by a guassian envelope anechoic: it doesn't have to be a guassian envelope though anechoic: and the duration is from 1 - 100 mS anechoic: on pg 89 there are examples of other types of envelopes anechoic: does everyone here except ArticVLF have the book? Eto Ami: have read it -- not with me now Miulew: the quasi-gaussian seems to be useful (the tukey) - curtis r. seems to have used this in early experiments anechoic: ok...best to have the book while participating in the book club since we often times refer to pages and diagrams Miulew: (i have book here) anechoic: yeah on pg 99 there is some info on this Eto Ami: von Hann also a useful env. <<< PortNoiseComplaint has joined >>> <<< 8/17/03 2:18:17 PM >>> anechoic: can ytou describe the von Hann? anechoic: but the different envelopes have drastically diffferent affects on the grains anechoic: as per pg99 anechoic: has anyone here played around with the Pulsar Synthesis patch? ArcticVLF: i use audiomulch for granular synthesis and at times bidule anechoic: does AM allow you to use other envlopes other than Guassian? ArcticVLF: there is quite a few different options. but i never seen Guassian. Eto Ami: von Hann (Hanning): http://astronomy.swin.edu.au/~pbourke/analysis/windows/#hanning Miulew: in Am it is possible to change the shape... Miulew: from triangle into rectangle ArcticVLF: not yet at least anechoic: Guassian might have another name but I'm sure that it is probably there Miulew: you can change envelopes in AM - but not as selecting gaussian, tukey etcetera. anechoic: Hamming is also known as the raised cosine window ArcticVLF: well maybe im wrong because there is a shape slider.but it dosent say anything about sine,triangle ect. anechoic: ah OK so you can define your own env anechoic: ? ArcticVLF: thats what it seems im not to sure i'll have to check into that anechoic: ok Miulew: from "help in AM" ... Shape - Envelope shape Miulew: Miulew: Each grain has an amplitude envelope consisting of an attack, sustain and decay portion. TrapFact determines the duration of the sustain portion relative to the duration of the attack and decay portions. When shape is 0, the envelope is a triangle, when it is 1 the envelope is a rectangle. Miulew: Miulew: Miulew: Miulew: AudioMulch Help 1997-2003 Ross Bencina anechoic: yes RTFM! ;) ArcticVLF: I guess im bad for not reading :D anechoic: hahaha Miulew: :) ArcticVLF: :D ArcticVLF: i'll do that tonight <<< PortNoiseComplaint has left >>> <<< 8/17/03 2:29:16 PM >>> Miulew: sorry for the massive pasting anechoic: maybe we should talk a bit about the ch3 content anechoic: no worries very acceptable anechoic: it sounds like you get linear a-s-d segments anechoic: and no curves anechoic: in AM anechoic: I'll be back in a couple of minutes...need to make a cup of coffee ArcticVLF: ok Miulew: yes - probably - the sinc, expodec, rexpodec curves should probably not be possible to to make in the AM Miulew: but i haven't looked on this as a problem until now <<< kubia has joined >>> <<< 8/17/03 2:33:37 PM >>> Miulew: i think this chapter made me go deeper into the granular functions in AM and really understand some aspects Miulew: instead of just tweaking around :) Eto Ami: which aspects? anechoic: well can you access tables in AM? anechoic: if so you can calculate your own envelopes and use them anechoic: similar to the GEN functions in Csound Miulew: for instance the grain duration aspects - what happens (see table 3.1 on p101) anechoic: yes the duration also makes a big difference in sound Miulew: i don't think it is possible to use tables in AudioMulch granulation anechoic: hmm...is it a separate object? anechoic: the granular generator that is anechoic: another way around this limitation is to make your own granular object anechoic: see pg91 for an example Miulew: and build new textures with that object? anechoic: which object are we refering to? anechoic: the one you build from scratch? anechoic: the object on pg 91 is the heart of any granular synth object anechoic: it is simply an osc with an amp env anechoic: and can be extended in any direction ArcticVLF: it sounds like pulse comb is the closest thing as in shaping that is by ear in AM anechoic: not sure I follow you here... Miulew: by ear? (AM as in Amplitude Modulated? or AudioMulch?) ArcticVLF: audiomulch Miulew: ok anechoic: pulse comb>? ArcticVLF: it can give a sound a triangular sound ArcticVLF: yes anechoic: is a pulse comb some param of the gran in AM>? ArcticVLF: yes anechoic: what does it do? anechoic: is it a env? anechoic: it sounds like a freq domain effect ArcticVLF: it seems to change the freq but gives it a different shape ArcticVLF: it can also pulse a sound anechoic: on pg 102 there is a graph showing a comb like FR ArcticVLF: i hope im making sense :D Miulew: i think so! :) ArcticVLF: but it seems to describe shaping as you guys mentioned anechoic: shaping in amplitude or freq space? ArcticVLF: frequency anechoic: ah so it creates a comb filter effect?> ArcticVLF: yes ArcticVLF: but it can create short or long pulses too anechoic: it seems that it posisbly changes the grain duration and therefor the grain spectra anechoic: ok I think it descibes the duration of the grain ArcticVLF: yes anechoic: got it now! :) anechoic: so what can we do with grains? anechoic: or maybe a better q to ask is what do WE do with grains? ArcticVLF: pulse them change the freq and amp Eto Ami: randomize or reconstitute ArcticVLF: i'll look on the site to refresh my memory ArcticVLF: i'll give param examples anechoic: on pg 91 there is a list of organizational procedures anechoic: matrices or screens anechoic: overlapping streams anechoic: clouds anechoic: etc Eto Ami: density / sparsity Eto Ami: time strething anechoic: sync or async? Eto Ami: both! anechoic: which appeals to p[eople more? anechoic: and why? Eto Ami: used to enjoy making clouds of speech anechoic: interesting Eto Ami: (async / hi density) anechoic: and did you edit or process this? Eto Ami: sure... Miulew: and stretch in time? (or compress) anechoic: was this used to timestretch the speech? anechoic: sorry! anechoic: stepped on your q Eto Ami: no, would pull grains from random locations in sample Eto Ami: and reconsitute <<< bill jarboe has joined >>> <<< 8/17/03 2:57:34 PM >>> Eto Ami: lots of overlap also anechoic: how long where the grains?> Eto Ami: would experiment -- long grains keep the "speech" sound better <<< bill jarboe has left >>> <<< 8/17/03 2:58:27 PM >>> anechoic: on pg 96 there is a good description of async params ArcticVLF: sorry to cut in.but you were right about the comb filter anechoic: ok this is a product of the duration of the grains ArcticVLF: pulsecomb is an amplitude modulated comb filter anechoic: is that part of the granular object in AM? Miulew: Eto Ami: Your experiments got me thinking of William S. Burroughs cut-up technique on a micro-scale!! :) ArcticVLF: yes anechoic: exactly! Eto Ami: yes, I started doing those with reel-to-reel tape... Eto Ami: but could never cut the pieces small enough! Miulew: i can see your frustration! :) anechoic: ok what about waveforms to use in the grain? anechoic: speech is one idea, others? ArcticVLF: how about small peices from an orchestra? anechoic: ok...how would you do this? anechoic: pile all the small files into one long one> anechoic: ? anechoic: or keep them separate> anechoic: ? ArcticVLF: yes piling anechoic: what about a waveform that varies in time? ArcticVLF: you got me on that one :D anechoic: also at the bottom of p103 there is mention of possible aliasing as an artifact anechoic: has anyone played around with this? ArcticVLF: someone said clouding? can someone give a quick definition? anechoic: if the fundamental freq of the grain waveform is above 1/2 the Nyquist freq then aliasing can occur Miulew: remember early sampler (on Sinclair Spectrum) on 12 kHz/8bit you could get very strange aliasing phenomena on some sounds :) anechoic: yes foldover is a useful tool anechoic: for creating textures Miulew: but i have not used aliasing as a tool to make sounds today anechoic: you might want to explore this - the bufferFuct project made extensive use of foldover in LiSA Miulew: nice - - what is LiSA? anechoic: its a live sampling app made at STEIM anechoic: there is info on the microsound website anechoic: look under bufferFuct Eto Ami: in truth I find granular synthesis so ubiquitous now that it is no longer compelling Eto Ami: at least, in a sort of "preset" way anechoic: yeah I know what you mean anechoic: this was my feeling back in 1997 when everyone was just discovering granular anechoic: and preset overuse became a basis for entire compositions anechoic: I think the idea is to use is along with other techniques <<< kubia has left >>> <<< 8/17/03 3:22:03 PM >>> anechoic: so as to not foreground any one technique Eto Ami: very much agree with that! Miulew: agree on that too! anechoic: but even Akufen could be considered granular anechoic: so the technique can be applied in new and interesting ways anechoic: ok maybe not 'new' but interesting Eto Ami: I think it *could* be applied in a new way... Eto Ami: just haven't found it yet anechoic: Roads discusses micromontage in ch5 which can be seen as an exention of grains anechoic: you just need to keep experimenting...see how you can subvert the technique or break it in some way anechoic: to make it do things not intended by the designer Miulew: anyone familiar with Bob Ostertag? - i think he maybe is using micromontage techniques . . but i might be wrong . . anyone updated on that? anechoic: I haven't heard Bob's work lately anechoic: any mp3s you can point us to? Miulew: maybe there is something at his site at http://detritus.net/ostertag/ anechoic: nope anechoic: not that I can find anechoic: but I will search out some other info on his work anechoic: note: we have half an hour left to the book club <<< ArcticVLF has left >>> <<< 8/17/03 3:32:52 PM >>> Eto Ami: kim, I assume you don't use much granular synthesis in your own work? anechoic: yes but not solely anechoic: I tend to mix things up anechoic: a great program for the PC is called GranuLab anechoic: Pimmon uses it as a live performance instrument Eto Ami: any experience with Roads' CloudGenerator? anechoic: yes anechoic: quite a bit anechoic: it is a good tool anechoic: I would also recommend DL'ing his Pulsar Synth Miulew: GranuLab is to be found at http://hem.passagen.se/rasmuse/Granny.htm Miulew: is Pulsar Synth only for mac? anechoic: yes anechoic: it is made in SuperCollider Miulew: aha anechoic: but it is a very good tool anechoic: for learning and creating Miulew: i guess i have to buy me a mac some day anechoic: but when I was PC based (my years in Silicon Valley) I played with GranuLab and it is really great also anechoic: what program do you use on the PC? Miulew: i use mostly AudioMulch and I have been using GranuLab before - but that was before I startet to read Microsound :) so now things start to sound different! <<< ArcticVLF has joined >>> <<< 8/17/03 3:41:32 PM >>> Eto Ami: There is another Mac-only program called Real Time Granular Synthesis Eto Ami: which allows one to load samples and tweak parameters anechoic: URL? Eto Ami: http://home01.wxs.nl/~menti049/rtgs.html Eto Ami: have used this quite a bit -- much fun Miulew: it was very fun to make the klanghausen track - i got very much inspiration and hints from reading chapter 3 Eto Ami: your track's quite good, btw Miulew: thanx! :) Miulew: crusher-X is also a granulation sw for PC anechoic: will DL RTGS and check it out... anechoic: yes crusher x is very good too Miulew: it was also interesting to read about the early computer tweakings Roads had to make to just compile some seconds of granulated sounds Miulew: p108 and on anechoic: yes computers back then were huge, slow, and expensive anechoic: the power we have today is not fully appreciated Eto Ami: ok, got to go... thanks for the chat & see you on the list Eto Ami: promise to bring my book next time ;> anechoic: cool thanks for joining! <<< Eto Ami has left >>> <<< 8/17/03 3:50:51 PM >>> Miulew: bye! :) anechoic: if anyone else want to hang out please feel free anechoic: but I have some things I need to finish tonight anechoic: so any last q;'s? ArcticVLF: alright its been fun :D Miulew: a last q? anechoic: yes anechoic: do oyu have any? anechoic: you Miulew: could it be possible to prepare some listening pieces - that those who will attend the discussion should have listened to? anechoic: there are examples in the book on CD anechoic: maybe someone could rip and UL this as mp3's?> Miulew: yes Miulew: i can do that anechoic: would that be OK? anechoic: I'll make a folder in the book club folder called sound_examples anechoic: done anechoic: see it? ArcticVLF: i see it anechoic: cool send me a personal email when its done? anechoic: and I'll announce it to the list anechoic: thanks so much for doing this! Miulew: yes! - i put examples there asap - hope this is OK with Roads? anechoic: I'm sure it will be fine...he was pleased about the book club Miulew: nice! anechoic: and offered us a discount on the book anechoic: via MIT Press Miulew: well - have to go to bed - it is late here in sweden anechoic: good night