Hey,

You can collect the values from the ADC by calling it's .last() method.

so for example:

float values[32];

int i;

for (int i;i<values.size;i++) {

adc.last() => values[i];

samp => now;

}

I think what is confusing you is that chuck ugens works sample by sample and not by sending a vector like other languages.

Does this help ?

Happy chucking,

Casper

Thanks for the fast reply. I have write this code:


fun int[] discreteHaarWaveletTransform( int input[]){
    int sum, difference,length,i;
    int  output[input.cap()];


    for ( (input.cap() >> 1) => length ; true ;  (length >> 1) => length) {
        for (0 => i; i < length; ++i) {
            input[i * 2] + input[i * 2 + 1] => sum;
            input[i * 2] - input[i * 2 + 1] => difference;
            sum => output[i] ;
            difference => output[length + i];
        }
        if (length == 1) {
            return output;
        }

        //Swap arrays to do next iteration
        for (0=>i; i < (length<<1); i++){
            output[i] => input[i];
        }
    }
}




For this reason I need the int input [] array relating to adc input
samples.  I need to extract the "raw" values of the input (without
FFT). I have test with something like that:

adc.chan(0) => UGen inputMic;


Thanks for the help!

Casper Schipper

casper.schipper@gmail.com

www.casperschipper.nl

+316 52322590

On 7 jun. 2013, at 18:00, chuck-users-request@lists.cs.princeton.edu wrote:

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Today's Topics:

  1. Re: Get audio samples of adc (Aur?lien Bondis)
  2. Re: EspGrid 0.42 (Michael Heuer)

From: Aurélien Bondis <abondis@kerunix.com>

Subject: Re: [chuck-users] Get audio samples of adc

Date: 7 juni 2013 17:48:51 CEST

To: ChucK Users Mailing List <chuck-users@lists.cs.princeton.edu>

Reply-To: ChucK Users Mailing List <chuck-users@lists.cs.princeton.edu>

Hi,
I don't know what a wavelet transform is, but can't 'adc =>' work ? or
'LiSa' do what you need?
(http://chuck.cs.princeton.edu/doc/program/ugen_full.html#LiSa)
Sorry if I did not understand the question...
Aurélien.

On Fri, 07 Jun 2013, fernando alonso wrote:

Hi,

I want to program de Wavelet Transform, and for it I need to get the
audio samples. Do you know some way to get the audio samples?


Thanks.

--
Fernando Alonso Martín
Lualobus@gmail.com
http://roboticnaturalinteraction.com
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From: Michael Heuer <heuermh@gmail.com>

Subject: Re: [chuck-users] EspGrid 0.42

Date: 7 juni 2013 17:56:23 CEST

To: ChucK Users Mailing List <chuck-users@lists.cs.princeton.edu>

Reply-To: ChucK Users Mailing List <chuck-users@lists.cs.princeton.edu>

Hello David,

This looks very cool.

The docs mention an esp.ck ChucK file and I see it in the 0.42 .zip
file but it is not in the source tree on Google Code.

  michael


On Thu, Jun 6, 2013 at 12:00 PM, David Ogborn <ogbornd@mcmaster.ca> wrote:

Dear friends,

I am pleased to announce the official release of version 0.42 of the EspGrid
software - the synchronization and sharing software for laptop ensembles I
have developed around the Cybernetic Orchestra at McMaster, during the
project "Scalable, Collective Traditions of Electronic Sound Performance"
(supported by Canada's Social Sciences and Humanities Research Council,
SSHRC).  The software and some additional helpful files (code/patches) can
be downloaded here: http://esp.mcmaster.ca/EspGrid-0.42-OSX-10.7.zip

Over the course of the past year, earlier versions of the software have been
presented at the Toronto Electroacoustic Symposium, the Audio Engineering
Society Convention in San Francisco, and most recently, the
live.code.festival in Karlsruhe, Germany.  This 0.42 release is a "clean-up
release" - with better stability and synchronization.  EspGrid has been
developed around the ideas of neutrality and hybridity with respect to the
languages and environments employed by laptop and live coding performers.
The EspGrid application "sits in the background" and takes care of clock
synchronization, to a large degree independent of the diverse and multiple
"foreground" environments in which performers/creators work.  Another
participant in the live.code.festival session (chair Alex McLean, if I
recall correctly) provided a perfect example of the intent of the EspGrid
software: three electronic musicians find themselves on a train together;
despite all using different languages/tools to make their music, they each
fire up EspGrid and instantly share a tight common clock and a metronome
that anyone can control.  Jamming ensues...

The EspGrid software is being made available to community as free and open
source software (GNU public license version 3).  The code base of the
software includes a large and growing number of unit tests, and development
should proceed according to the principles of test-driven development.  The
rudiments of a help/documentation system are in place.  Binary executables
exist only for Mac OS X at the present moment but the Windows and Linux
ports of the software are the highest, immediate priority following this
release.  Windows and Linux users in mixed laptop ensembles don't need to
wait for these ports however: there is a "side chain" mechanism that allows
users/machines without a running grid to piggyback on a user/machine that is
running the grid.

To get/browse the source code, visit the software's Google code site at:
http://code.google.com/p/espgrid

Enjoy - and feel free to get in touch for help/issues with the software.  I
hope that some of you will find this useful, and look forward to working
with you on the (gradual) evolution of this tool!

Yours truly,
David

--------------------------------------------------------------------------
Dr. David Ogborn, Assistant Professor
Communication Studies & Multimedia
Director, Cybernetic Orchestra
McMaster University, Hamilton, Canada

http://esp.mcmaster.ca
http://davidogborn.net
http://twitter.com/d0kt0r0
1-905-525-9140 ext 27603




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