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Forums > CSDb Entries > Event id #2967 : 25Hz Music Compo 2020
2020-07-01 20:53
Jammer

Registered: Nov 2002
Posts: 1333
Event id #2967 : 25Hz Music Compo 2020

Welcome to the first and hopefully not the last edition of 25Hz Music Compo!

Basic premise is to create a piece of music with player that updates SID registers at rate of 25Hz or to put it in other words - every 2nd frame. There are very few tunes out there playing at such slow speed but maybe it's the right time to change it? :) Here are couple of examples:

Low Frequency
Half-Funk


Compo rules:

1. No covers and remixes allowed.
2. No upper limit for playtime.
3. No limit of tunes per author but playtime of each has to be at least 2 minutes.
4. Use any editor that allows you to use such playback rate or go for custom player if you need. Goat Tracker surely offers 25Hz playback (Multispeed 0).

Good luck and have fun! <3
 
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2020-07-08 19:34
JackAsser

Registered: Jun 2002
Posts: 2014
Quote: Hoping for 0.25x speed aka 12.5Hz after this one! Or perhaps 0.2x (10Hz) would work better ;-)

Why not just running detuned sqarewaves at 0hz modulation, aka Drone?
2020-07-08 20:17
Jammer

Registered: Nov 2002
Posts: 1333
Quoting JackAsser
Why not just running detuned sqarewaves at 0hz modulation, aka Drone?


Best soundscape done with only single SID init is kinda nice challenge :D
2020-07-08 21:11
booker

Registered: Jul 2003
Posts: 334
Quoting Digger
Hoping for 0.25x speed aka 12.5Hz after this one! Or perhaps 0.2x (10Hz) would work better ;-)

throw a WIP matey, can't wait to hear it :-D
2020-07-08 22:09
Krill

Registered: Apr 2002
Posts: 2940
Quoting JackAsser
Why not just running detuned sqarewaves at 0hz modulation, aka Drone?
Quoting Jammer
Best soundscape done with only single SID init is kinda nice challenge :D
Don't forget ringmod on all three voices. =)
2020-07-08 22:22
Jammer

Registered: Nov 2002
Posts: 1333
Quoting Krill
Don't forget ringmod on all three voices.


Sure thing! :D
2020-07-12 20:00
Frantic

Registered: Mar 2003
Posts: 1641
On a sidenote, I think I actually broke my RetroTINK-2X that I use to be able to connect a C64 to an HDMI screen, due to that 25 hz “flicker in the border every second frame”. I had a 25hz tune playing for something like 30 minutes and now that part of the screen flickers no matter if I run this program or not. :P Might be good to know, in case you also have a RetroTINK-2X.
2020-07-12 20:19
Krill

Registered: Apr 2002
Posts: 2940
Retrotink finally making the Poke of Death a reality on C-64, too! =D
2020-07-12 20:26
Frantic

Registered: Mar 2003
Posts: 1641
Yes. ...or rather, more like a poke of temporary nausea. It turned out that the flickering gradually got better the longer I had the RetroTINK-2X turned off, and now it is more or less back to normal again.
2020-07-12 22:12
MagerValp

Registered: Dec 2001
Posts: 1065
More likely your HDMI display being confused rather than the RetroTINK-2X. Rapid flashing can confuse modern flat panels and cause temporary ghosting effects.
2020-07-12 22:41
Frantic

Registered: Mar 2003
Posts: 1641
That may very well be a more reasonable explanation — I really don't know much about the tech involved here — but when I tried to connect the HDMI screen to the mac instead, no flickering was visible on the display. When I connected the RetroTINK-2X again after that, the flickering was back, until it gradually disappeared. I guess your explanation is still possible though, if the screen goes into different modes depending on what is connected to it, and if it is some kind of software thing. Anyway, I guess this is getting off topic. Sorry guys.
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