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Forums > C64 Composing > reverb / delay techniques
2013-12-08 20:05
mstram
Account closed

Registered: Dec 2013
Posts: 112
reverb / delay techniques

** warning tracker noob ** :)

How do you do it ?

I'm studying the 'cabrinigreen' tune now.

It looks like the instrument is duplicated, with the duplicated instrument's ADSR values altered ?

Then in the pattern, the note to be "echoed" is duplicated, using the copied instrument.

If that's the basic idea, then how are the ADSR values related to the "size" of the delay, i.e. "hall / room" etc as shown in other sequencers ?
 
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2013-12-09 22:34
Isildur

Registered: Sep 2006
Posts: 275
As for 8bit shitty zx spec AY isn't so cappy:
http://youtu.be/3MNHP-hBMLI

as for 16bit machine YM is a total crap :)
http://youtu.be/sUuKK0TcKbE

Wondering why we don't have ANY good FM synth tracker for C64.

(I'm big fan of chiptunes BTW)
2013-12-09 22:45
Soren

Registered: Dec 2001
Posts: 547
FM synthesis ought to be possible to some extend on the c64.

Didn't the AY originally only do 1-bit samples? :)
2013-12-09 22:52
chatGPZ

Registered: Dec 2001
Posts: 11293
Quote:
As for 8bit shitty zx spec AY isn't so cappy: http://youtu.be/3MNHP-hBMLI


thats a pure sample tune, not AY sound :)

Quote:
Didn't the AY originally only do 1-bit samples? :)

no. the original speccy only has the beeper - and with that you can only play 1 bit samples :)
2013-12-10 08:05
Dane
Account closed

Registered: May 2002
Posts: 421
Quote: I'm no musician but I've heard methods where they repeat the last 2 or 3 notes, instead of echoing each. sometimes this 2-3 echoed note follows a longer string of unechoed notes. sometimes the whole melody is interleaved 3 note then 3 echo, etc.

Yep, used this technique loads of times, combined with 2 channel echo (when possible) and instruments with built-in echo (like in Jeff's example).
2013-12-11 01:21
iLKke

Registered: May 2012
Posts: 29
Quoting Groepaz
no. the original speccy only has the beeper - and with that you can only play 1 bit samples :)

There's a lot of things people have done with the crappy speccy beeper over the years.

Check out these sound engines:
http://freestuff.grok.co.uk/beepola/help/tonegen.html
2013-12-11 03:19
SIDWAVE
Account closed

Registered: Apr 2002
Posts: 2238
i
2013-12-11 07:07
Oswald

Registered: Apr 2002
Posts: 5076
beeper & ay/ym is heavily underrated around here.
2013-12-11 09:38
CreaMD

Registered: Dec 2001
Posts: 3038
Quoting Dane
Yep, used this technique loads of times, combined with 2 channel echo (when possible) and instruments with built-in echo (like in Jeff's example).


1. I also love to use this type of echoes using multiple notes. Very subtle.

2. For more intense 1 channel echoes I love to postpone echoed note after the played note..

like this

C
(if the sequence is looped, you can add echoed F here ;-)
D
ECHOED C (lower volume)
E
ECHOED D (lower volume)
F
ECHOED E (lower volume)

3. also stopping the long tone abruptly.. add add echo after pause sound quite cool.. I use that from time to time

P.S.: I love what Tim Follin did with speccy's "BEEPER".. Chronos tune for example.. *INSANE*
2013-12-11 19:35
Hein

Registered: Apr 2004
Posts: 939
A reverb:
Set a short release on an instrument that has gate-on bit set.
Trigger a gate-off in your track and on the tick after the gate off command, set your release to a high value. This results in a fast lowering of volume and before the release cycle is finished you can 'reverb' the sound with the new long-lasting release cycle. Sort of. :)

C-4 01 6f8  <-set SR to F8
---         <-gateoff
       64f  <-set SR to 4F

You can expand this by setting a high attack value and trigger a gate-on further on.

Obviously, the speed of the track influences the outcome.
Some data:
http://www.sid.fi/sidwiki/doku.php?id=sid-knowledge
2013-12-11 22:39
Hate Bush

Registered: Jul 2002
Posts: 460
did you use that technique on a lead channel of 'close but no cigar' or is it the lead/arps frequency clash that creates that fantastic reverb effect? or do both contribute?
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