ggkarman at airtel.net
Mon Aug 27 20:55:17 CEST 2001
Yes you're right, using two arrays, writing and reading each one
alternatively could be a solution i hadn't thought about. But that would
mean that the samples i read from the (reading-)array would always be 'one
array' later than real time(a delay corresponding to the size of the
writing-array). Of course smaller arrays could be used (which i would
prefer not to as i want to be able to access for example, fragments within the
last 5 seconds), or as you suggested more smaller arrays.
I was rather thinking if it could be possible to make delread~ (or some
other object or simple patch) behave like the circular queue as described
in Curtis Roads (The computer music tutorial,p 433), with the posibility of
several taps (reading-pointers) which reading position i could control with
(one-)sample precision. This structure would allow to access samples from
real time (in fact one sample later than real time) to the time
corresponding to the total length of the queue.
> ----- Original Message -----
> From: "Miller Puckette" <mpuckett at man104-1.ucsd.edu>
> To: "Gregorio Garc?a" <ggkarman at airtel.net>
> Cc: "pd-list" <pd-list at iem.kug.ac.at>
> Sent: Monday, August 27, 2001 7:54 PM
> Subject: Re: [pd] delread~
> > Hi,
> > I don't think you need do do anything funny with block~. The easiest
> > to proceed might be to maintain a pair of samples and alternately sample
> > each one while reading from the other. Alternatively, you can maintain
> > larger collection of samples from more or less recent input.
> > Yes, you do have to specify the size of the sample in advance, but that
> > mean you have to use all of it. There are sampler patches in the
> > "dsp examples" (under "pure documentation") which might help you
> > cheers
> > Miller
> > On Sun, Aug 26, 2001 at 04:55:49PM +0200, Gregorio Garc?a wrote:
> > > Hi list,
> > >
> > > Im trying to buid a patch that processes live input. My wish is i
> > > some kind of buffer where i could continuously write the input signal
> > > (something like a circular qeue?), and arbitrarily read fragments of
> > > within that buffer. I thought of delwrite~/ delread~ pairs to
> > > this, but i would like to be able to specify the position and total
> > > of the audio fragments i want to read in samples (does this make
> sense?). Is
> > > the delay amount limited to block size (64 samples? = DSP cycle?)
> > > (64samples, 128 samples, 194 samples, etc...)?
> > >
> > > Could i use tabsend~/tabreceive~ for this purpose?. What is the usual
> way of
> > > using tabsend~/tabreceive~ ? (could you point out an example?). What
> > > paramerters can tabreceive~ handle?
> > >
> > > Is there a better way for doing this?
> > >
> > > thnks
> > >
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