As long as we are making requests, I have long wanted to see the Aeolus organ as a Csound opcode or opcodes, and I think a lot of other people would as well.

It's not necessary for Adriaensen to actually create the opcodes... I can do that. However, it would be very helpful to me if the organ existed as a cross-platform library disentangled from the GUI and from audio and MIDI inputs and outputs.

Regards,
Mike

-----Original Message-----
>From: Oeyvind Brandtsegg 
>Sent: Jun 4, 2008 4:44 PM
>To: csound@lists.bath.ac.uk
>Subject: [Csnd] Re: Re: Re: Re: pvsmaska
>
>Ah, I just realized from replies to another thread that mr Adriaensen
>is here on the list (at least on the dev list).
>Is there any chance that the deconvolution tools could be implemented
>in Csound ?
>
>best
>Oeyvind
>
>2008/6/4, victor :
>> I suppose you need to apply deconvolution to get
>> the impulse. Fons Adriaensen 
>> is your man  to give the exact details (I have
>> not done that myself yet). He's got a software for
>> IR measurement.
>>
>> Victor
>>
>>
>> ----- Original Message ----- From: "Oeyvind Brandtsegg" 
>> To: 
>> Sent: Wednesday, June 04, 2008 11:56 AM
>> Subject: [Csnd] Re: Re: pvsmaska
>>
>>
>>
>> > Ah, you're right. Thanks. I did not think of that.
>> >
>> > As for the sine sweep method of recording an impulse response,
>> > how do I post process the recording of the sine sweep to leave only
>> > the "response" and get rid of the original sine sweep ?
>> > Could I just subtract a delayed version of the sine sweep to phase out
>> > the original signal in the response recording ?
>> >
>> > best
>> > Oeyvind
>> >
>> > 2008/6/3, Victor Lazzarini :
>> >
>> > > Oeyvind,
>> > >
>> > > 1. instead of using pvsmaska, you could try pvsfilter
>> > > that does the same thing but with two fsigs. Note that
>> > > both pvsmaska & pvsfilter will not affect the phase
>> > > of the signals, so the transformation is magnitude-only.
>> > >
>> > > 2. I would have thought you could record the impulse
>> > > response of your system and then use pconv to
>> > > process the audio. That will use mag+phases
>> > > (full-featured convolution).
>> > >
>> > > Regards
>> > >
>> > > Victor
>> > >
>> > >
>> > > At 10:24 03/06/2008, you wrote:
>> > > >
>> > > > Hi
>> > > >
>> > > > I'm trying to write an instrument that will analyze the frequency
>> > > > response of my audio system (the signal path from Csound output, via
>> > > > speakers, microphone, and back into Csound).
>> > > >
>> > > > I want to use the result of the analysis to shape an audio signal (all
>> > > > inside Csound) so that it will sound (as close as possible) like it
>> > > > has been played through the speakers and recorded back into Csound.
>> > > >
>> > > > I figured I could use the pvs opcodes, with pvsftw writing a table
>> > > > with amplitudes for all frequency bands in the analyzed signal (audio
>> > > > system response simulated with an arbitrary filter in the attached
>> > > > csd), then use pvsmaska to shape the frequency response of another
>> > > > signal.
>> > > >
>> > > > This works in terms of frequency response, but the overall amplitude
>> > > > is very low for the "shaped" signal (aout in instr 2 of the attached
>> > > > csd).
>> > > > I wonder if there are some formula for gain makeup in this case ?
>> > > > It seems to me in theory this should just work "out of the box), with
>> > > > no need for makeup gain, or am I way off in supposing it should work ?
>> > > >
>> > > > best
>> > > > Oeyvind
>> > > >
>> > > > Send bugs reports to this list.
>> > > > To unsubscribe, send email sympa@lists.bath.ac.uk with body >
>> "unsubscribe
>> > > csound"Content-Type: application/octet-stream;
>> name=auto_calibrate_pvs2.csd
>> > > > X-Attachment-Id: f_fh0a9i9o
>> > > > Content-Disposition: attachment;
>> > > filename=auto_calibrate_pvs2.csd
>> > > >
>> > >
>> > > Victor Lazzarini
>> > > Music Technology Laboratory
>> > > Music Department
>> > > National University of Ireland, Maynooth
>> > >
>> > >
>> > >
>> > >
>> > > Send bugs reports to this list.
>> > > To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
>> > > csound"
>> > >
>> > >
>> >
>> >
>> > Send bugs reports to this list.
>> > To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
>> csound"
>> >
>>
>>
>>
>> Send bugs reports to this list.
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>
>
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