Ha, wow this thing is fun. I popped a 4-pole filter before the delay and another one after it, and added feedback to get some repeats happening. The unfiltered sounds are nasty in a cool way, I think.
To implement:
-variable delay time
-stomp switch that starts recording, then on the second tap, it ends the recording and starts playing it back.
I'll post the code as I add features.
2 second delay
Moderator: frank
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livingston
- Posts: 131
- Joined: Sun Nov 15, 2009 3:37 pm
- Location: New Orleans, LA US
Tried it an it worked for me, dry and delayed signals both come out on right, try changing the last 2 lines from:
rdax adcr,.5
wrax dacr, 0
to:
wrax dacl,0
rdax adcr,.5
wrax dacr, 0
Which will put the delayed out left and the dry out right
rdax adcr,.5
wrax dacr, 0
to:
wrax dacl,0
rdax adcr,.5
wrax dacr, 0
Which will put the delayed out left and the dry out right
Frank Thomson
Experimental Noize
Experimental Noize
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access7777
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- Contact:
Re: 2 second delay
IMHORingo wrote:Hi folks,
is it possible to create a 2 second delay with the FV-1?
When yes, how can I create it?
Peace,
Ringo
If the mono device is suits you,
the shortest and the simlpest way to do this - to send delayed signal from output of the left chanal to input of the right. Time POT will regulate the both
Re: 2 second delay
Let me revive this old thread....
Some months ago I was playing with the "8 seconds delay", and I tweaked it to work as a 2-seconds delay with feedback pot and delay pot, using standard clock. Here you have the result. It's a working 2-seconds delay with delay, feedback and mix controls.
I have also successfully modified it for tap tempo control.
It's also possible to add reverb and still keep about 1.3 seconds of delay.
It would benefit of some filtering to reduce the nasty effect of the reduced bandwidth, but I didn't add it yet.
Some months ago I was playing with the "8 seconds delay", and I tweaked it to work as a 2-seconds delay with feedback pot and delay pot, using standard clock. Here you have the result. It's a working 2-seconds delay with delay, feedback and mix controls.
I have also successfully modified it for tap tempo control.
It's also possible to add reverb and still keep about 1.3 seconds of delay.
It would benefit of some filtering to reduce the nasty effect of the reduced bandwidth, but I didn't add it yet.
Code: Select all
; 2 seconds delay using standard clock.
;
; It inteleaves the signal effectively downsampling the delay line and doubling the delay time.
; Based on "8 seconds delay" by donstavely
;http://www.spinsemi.com/forum/viewtopic.php?f=3&t=129
equ input reg0
equ loop reg1
equ temp reg2
equ output reg4
equ pot2fil reg5
mem delay 32767
skp run, start
sof 0,0.99
wrax loop,0 ;initial loop value
start:
ldax output ; load feedback from previous cycle
mulx pot0 ; back pot
rdax adcl, 1 ; mix with ADC
wrax input, 0 ;to be optimized, input register not needed
; If loop is positive THEN read an input sample and put it in the temp variable.
rdax loop, 1
skp neg, NotZro
ldax input
wrax temp, 0
NotZro:
; Put the temp variable in the head-end of the delay.
ldax temp
wra delay, 0
; Get a delayed sample out of the tail end of the delay, put it in the temp variable. This must be EVEN
ldax pot2 ;read pot2. delay time
RDFX pot2fil,0.0001500000
WRAX pot2fil,1
and 0x7FFFF0
wrax addr_ptr,0
rmpa 1
wrax temp, 0
ldax loop
sof -1, 0 ;invert loop
wrax loop, 1
; IF loop is positive, THEN write the temp variable to the output.
skp neg, Done
ldax temp
wrax output, 0
Done:
; Done, write output you really need to filter it again here
ldax output
mulx pot1 ;delay mix
rdax adcl,1 ;adding dry signal
wrax dacl, 0