Hello, For "I am sitting in a room", I suggest you just use a delay; no internal feedback loop, just adc => delay => dac. Of course, if you want to record it as well, that is separate, and you'll probably also want to have a quick way of dropping adc gain (maybe on your preamp rather than in software) for when the feedback gets out of hand. Hope that helps, Peter On Dec 15, 2007 10:26 AM, eduard aylon wrote:

Hello list,

I am trying to reproduce the piece "I am sitting in a room" by Alvin Lucier using either sndbuf or WvIn to play the recorded signal and WvOut to record the audio signal. However I get annoying clicks as it is usual with sndbuf and WvIn ugens. Does anyone have a suggestion for avoiding such clicks? Maybe Lisa would be better? (it's on my list, but still haven't played with Lisa..)

Thanks in advance,

eduard

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For "I am sitting in a room", I suggest you just use a delay; no internal feedback loop, just adc => delay => dac. Of course, if you want to record it as well, that is separate, and you'll probably also want to have a quick way of dropping adc gain (maybe on your preamp rather than in software) for when the feedback gets out of hand.

I read this thread and downloaded the original Lucier piece, which I found quite haunting. And then I could achieve a similar effect by simply changing the delay.ck example time lapse to 75 seconds: // patch adc => DelayL delay => dac; // set delay parameters 75::second => delay.max => delay.delay; // infinite time loop while( true ) 1::second => now; I'm a novice at sound/ChucK. So I guess that my room is resonating, and the drone that develops after 10-15 minutes is my speakers screaming at the mic. There are still some bizarre patterns though. Sounds of my shower etc. It's all quite surreal. Now I want to control this drone in some way because it gets quite monotonous, and I want to trigger some mp3 cuts when certain frequencies are encountered. I'll figure all this out, just sharing my experience. I also want to keep the final code less than 100 lines. Lets see! Very excited now. ------- -.- 1/f ))) --. ------- ... http://www.algomantra.com

On Dec 17, 2007 7:33 AM, AlgoMantra wrote:

...

I'm a novice at sound/ChucK. So I guess that my room is resonating, and the drone that develops after 10-15 minutes is my speakers screaming at the mic. There are still some bizarre patterns though. Sounds of my shower etc. It's all quite surreal.

At the risk of sounding corny, it's all very very real; *it's just that you*

*need to adjust your concept of reality ;-)*

Sir, I try not to adjust the concept, but reality itself. :) ------- -.- 1/f ))) --. ------- ... http://www.algomantra.com

Hi, Thanks for that reference! Tons of good ideas there.. I never even thought of checking the online forum since I much prefer the mailing list and always forget there is another place where people discuss chuck.. :) Good to know, for example, that you can chuck into a SinOsc, I didn't even know that. Time to read the documentation and examples all over again. eduard: thanks, I should have specified that I didn't want to do this in a single-sample loop. (usually a bad idea if you're worried about CPU usage..) ps. also i didn't know there was a ".op" parameter for Gain. It seems to not be on the reference page: http://chuck.cs.princeton.edu/doc/program/ugen_full.html#gain cheers, steve On Dec 15, 2007 10:36 AM, Leuthold Dominik wrote:

Hi steve

there is a long thread with some examples on the forum. look here: http://electro-music.com/forum/viewtopic.php?t=19287

hope this help.. /moudi

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-----Ursprüngliche Nachricht----- Von: chuck-users-bounces@lists.cs.princeton.edu [mailto:chuck-users-bounces@lists.cs.princeton.edu] Im Auftrag von Stephen Sinclair Gesendet: Samstag, 15. Dezember 2007 00:29 An: ChucK Users Mailing List Betreff: [chuck-users] simple distortion/clipping

...

Hi,

I've been trying to figure out how to do some simple distortion / clipping in Chuck. I'm not sure I fully understand the GenX objects. Is this the best way to do it?

Ideally I just want something that clips a waveform when it exceeds x or -x. Even better if the "corner" is somewhat rounded, but not necessary. I thought there might be a simple "Clip" UGen but it doesn't seem to exist.

By the way, on a similar topic, what happens exactly when the signal input in "dac" exceeds [-1,1]? It doesn't really sound like clipping to me, so is it integer wrapping? I find my audio output significantly degrades (i.e., sound pops, goes silent, or makes strange unpleasant noises) when I exceed this limit, so I always have to fight to keep it within the correct range.

Steve (currently working on my first chuck-related music performance!)

...

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Cools, thanks it's in the Language Reference. Never noticed it before. cheers, Steve On Dec 15, 2007 12:33 PM, Daniel L Trueman (dtrueman@Princeton.EDU) wrote:

that's because *all* ugens of the .op method. i can't remember where, but it is in the manual, and is super useful!

dan

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ps. also i didn't know there was a ".op" parameter for Gain. It seems to not be on the reference page: http://chuck.cs.princeton.edu/doc/program/ugen_full.html#gain

cheers, steve

On Dec 15, 2007 10:36 AM, Leuthold Dominik wrote:

...

Hi steve

there is a long thread with some examples on the forum. look here: http://electro-music.com/forum/viewtopic.php?t=19287

hope this help.. /moudi

...

-----Ursprüngliche Nachricht----- Von: chuck-users-bounces@lists.cs.princeton.edu [mailto:chuck-users-bounces@lists.cs.princeton.edu] Im Auftrag von Stephen Sinclair Gesendet: Samstag, 15. Dezember 2007 00:29 An: ChucK Users Mailing List Betreff: [chuck-users] simple distortion/clipping

...

Hi,

I've been trying to figure out how to do some simple distortion / clipping in Chuck. I'm not sure I fully understand the GenX objects. Is this the

best> > way to do it?

...

Ideally I just want something that clips a waveform when it exceeds x or -x. Even better if the "corner" is somewhat rounded, but not

necessary.> > I thought there might be a simple "Clip" UGen but it doesn't> > seem to exist.

...

By the way, on a similar topic, what happens exactly when the

signal> > input in "dac" exceeds [-1,1]?

...

It doesn't really sound like clipping to me, so is it integer wrapping? I find my audio output significantly degrades (i.e., sound> > pops, goes silent, or makes strange unpleasant noises) when I exceed this limit, so I always have to fight to keep it within the correct> > range.

Steve (currently working on my first chuck-related music performance!)

...

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