[sdiy] Chorus unit

[Grant Richter]

I just had an idea, but I sure it's been done before.

Run digitized audio into a RAM buffer, then read it back wrong.

Deliberately mix up the address lines and such, sort of like real time
granular synthesis. You could have a "Chunkiness" control, or mix up small
sections of forward, then backward with control of the size of the sections.

All the DSP designs I have seen, have the underlying assumption that the
memory section functions linearly. What about deliberately making the memory
section behave badly? That is to say a non-linear mapping of the input
sample space to the output sample space.

I bet the cryptography boys do this all the time.

> From: "danial stocks" <diode at hotmail.com>
> Reply-To: owner-synth-diy at node12b53.a2000.nl
> Date: Mon, 12 Feb 2001 02:34:26
> To: synth-diy at node12b53.a2000.nl
> Subject: Re: [sdiy] Chorus unit
> 
> 
>> 
>> Run with a ADC/DAC solution and then have a FIFO setup (possibly in a
>> FPGA), modulate with LFOs controling VCOs. Shuffle in some
>> anti-alaising, and do all this without saying anything to
>> anyone... just have fun ;)
>> 
> 
> there are 512 bit - abt 4K x9 wide fifo rams available.. dont know the part
> nos off hand , I got a few in my junk box,.. anyway theyre cheap - and
> suitable for applications like this digi phaser/flanger etc..
> Cheers,
> Dan
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