Hi all,

I found that two opcodes give different audio result depending on the 
orchestra sr: chuap and lorenz. You can test this by running the 
following commands from the manual example directory:

csound -r 44100 -k 490 -do dac chuap.csd
csound -r 22050 -k 245 -do dac chuap.csd

csound -r 44100 -k 490 -do dac lorenz.csd
csound -r 22050 -k 245 -do dac lorenz.csd

My explanation is that those opcodes have internal non linear feedback 
loops and this causes the dependance on the orchestra sr in the step 
calculation of the algorithm. Is there any dsp Guru on the list to tell 
me if I'm right? Should it be mentioned in the manual?

Best regards

Francois Pinot


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Correct.

Mkg

On Aug 21, 2009 4:28 AM, "PINOT Francois" <fggpinot@gmail.com> wrote:

Hi all,

I found that two opcodes give different audio result depending on the orchestra sr: chuap and lorenz. You can test this by running the following commands from the manual example directory:

csound -r 44100 -k 490 -do dac chuap.csd
csound -r 22050 -k 245 -do dac chuap.csd

csound -r 44100 -k 490 -do dac lorenz.csd
csound -r 22050 -k 245 -do dac lorenz.csd

My explanation is that those opcodes have internal non linear feedback loops and this causes the dependance on the orchestra sr in the step calculation of the algorithm. Is there any dsp Guru on the list to tell me if I'm right? Should it be mentioned in the manual?

Best regards

Francois Pinot


Send bugs reports to this list.
To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"