[sdiy] re: interesting digital circuits

[Richard Wentk]

At 10:06 15/12/2004 +0000, Paul Maddox wrote:

>Thats it, its quite simple, but 1Mbyte won't give you 48seconds at 44.1Khz
>sample rate, sorry.
>I built a simple one using a 64Kbyte SRAM and 8bit ADC/DAC, it worked, the
>feedback I did with analogue circuitry.

Analogue feedback is more interesting, because you can do things like put 
some EQ in the feedback loop. Hey presto! Dub delay.

In the other direction, if you want to be a real quality freak don't read a 
single location but estimate an interpolation window based on a fraction of 
a sample and interpolate between two (or more) adjacent samples.

Richard