BTW, I'm rather surprised that this technique was used in a guitar amp; I thought the sweetspot was relatively small? Wouldn't that be unpractical for guitar amps?
No, this was a consumer stereo (hi-fi) amp made in the '70s. I think the designers (and companies) name was Carver (George Carver) or some such.
So I take it that 100 us
is 100 microseconds (the suggested delay for speakers placed 3 meters apart)? Sampling rate is aprox. 40k so 1 sample every 250 microseconds? So from what your saying, this means you'd need to interpelate 250 times per sample? Now that I think about it (outch this math stuff makes my brain hurt), what does it even mean to hae a delay smaller than the time between samples?
-- Rich
----- Original Message -----
From: Kassen
To: ChucK Users Mailing List
Sent: Thursday, May 29, 2008 12:56 PM
Subject: Re: [chuck-users] Interesting stereo widening effect
2008/5/29 Rich Caloggero :
Wow, very cool. Will chuck do delays that short? I assume it probably has
more to do with the speed of the hardware than anything inherent about
chuck?
I think it will, delay lines need not be a integer multiple of 1::samp either, at least not for a interpolating delay (which we have).
I'm not 100% sure what will happen if the delay length becomes less then a samp and you still want to use feedback. Feedback loops in ChucK Ugens will always add a single sample delay. You may have to fake this be putting a few delays in series.
Delaylines aren't especially hard on the CPU, the main cost is probably the interpolation but I can't imagine why that would take more for extremely short delays. It'd be a different issue if you wanted delaylines considderably shorter then a samp with feedback in one Ugen. Clearly that would create a need to interpolate multiple times per sample and place some rather large demands on the quality of the interpolation.
BTW, I'm rather surprised that this technique was used in a guitar amp; I thought the sweetspot was relatively small? Wouldn't that be unpractical for guitar amps?
Yours,
Kas.
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