INSIDIOUS 6581

Emulation of the MOS SID 6581: the C64 sound chip.

(47 Votes)
1.1 (Updated 2 years ago)
988.7kB
May 30, 2015
Reaktor 5 or lower

DESCRIPTION

This ensemble is a near-perfect emulation of the extraordinary Commodore 64 sound chip. Included are all features of the original hardware:
* Three channels with Triangle, Square/PWM, Sawtooth, Noise and combined oscillators.
* Ring modulation and hard sync.
* The classic SID saturating filter that is incredibly important but missing on most emulations.
* LFOs and envelopes for pulse width, pitch, amplitude and filter cutoff.
* Step table at up to 50Hz for that genuine sound.

No attempt is made to create a better SID. No features are enhanced or improved. This is not the usual 'SID-like' or '8-bit style' synth. This is an attempt to recreate the real thing as closely as possible.

The example sound is Rob Hubbard's title music from the C64 game Delta (which is clearly based on Koyaanisqatsi), as played through this ensemble. The MIDI file is included in the download.

Also included is a MIDI file for Chris Huelsbeck's title screen music from the game R-Type, as demonstrated at https://www.youtube.com/watch?v=Vt0K8vM_4HQ

I have a blog about the creation of this ensemble at http://insidious6581.blogspot.co.uk

Changes v1.1 (2015/06/09):
* Fixed an issue with the redisplay of the LFO waveforms after changing programs.
* Added a feature to clock the modulation at 50Hz or 60Hz to emulate C64 games more closely and give a slightly more '8-bit' sound.
* Added the ability to hard sync the combined waveforms.
* Added presets for the R-Type title music MIDI file.
* Added a MIDI file for the R-Type title music.

COMMENTS  (38)

Enrico Bruttomesso
3 weeks ago
Thanks a lot for this fantastic ensemble Mike!
fabio marinelli
7 months ago
great!!! I did not understand how to set PWM...
Michael Pilyavskiy
1 year ago
great!
Johan Svensson
1 year ago
Update to below: I found out that the MIDI channel setting is located on the panel for each SID channel. My real problem was that Ableton Live is merging all MIDI in channels to out channel 1. That seems to be how it works, unless using the plugin called External Instrument, which unfortunately is not included with the Intro version. Bummer! That really should be a core function... I mean, playing multi-timbral VST:s is among the first things I require of a DAW. Anyway, Insidious sounds fantastic! Really cool that you can do such a thing with Reaktor.
Johan Svensson
1 year ago
How can I set the MIDI channels to SID channels as suggested in the readmes for Delta and R-Type MIDI files?
Serhat Kahveci
1 year ago
Can't wait to use this. Thanks, Mike!
Matthew Friedrichs
1 year ago
Fantastic emulation! I found a small midi bug in Reaktor 6 where the ST Gate module would not trigger the filter modulation at all. Simply moving this module into the filter modulation macro then connecting it to the LFO and ENV gate inputs directly fixed that right up. I hope to see you port the individual elements of this .ens to blocks! :)
Jorge Rodriguez
1 year ago
Love this thing. Thank you so much!
Sam Mover
1 year ago
https://soundcloud.com/andreigorlov/epilogue-no-future
GG.G SakabeaT
1 year ago
i come back here to say thxagain for that ens....fabulous......friggin'awesome dude!!!!
GG.G SakabeaT
1 year ago
thx
GG.G SakabeaT
1 year ago
Awesome
Josep Mª Ricou
1 year ago
Congratulations This is excellent work.
Dana Fortier
1 year ago
Had to give props for this fantastic ensemble.
David Sullivan
1 year ago
I always thought you were a clever-clogs Mike and this proves it. Genius.
Carlo Del Prato
1 year ago
Congratulations and thanx for sharing...timeless sound.
Jussi-Matti Salmela
1 year ago
You sir, are a gentleman and a scholar!
Lee Tobin
2 years ago
This is fantastic. My goto SID emulation now. Thanks!
Neil Baxter
2 years ago
Brilliant!
Daniel Hogan
2 years ago
5 Stars for the Demo Tune. :) Now for the download ...
benjamin bassenonville
2 years ago
Excellent work for an excellent sound ! Instant fun !!!
Quinn Hanratty
2 years ago
thank you, this is great!
Peter Christiansen
2 years ago
This is excellent work. Sounds quite authentic to me.
Paule
2 years ago
.. and another 5-star vote 4U
Malte Klima
2 years ago
That is really the sound of the C64! Thanks for your great work!!!
Goran Podrugovic
2 years ago
Thank You, really sweet!
Ng Mui
2 years ago
Wow I used to love R-Type, so many hours spent on that game xD
DANIEL FISCH
2 years ago
thanks. C64 reloaded!
Aynsley Green
2 years ago
Dang, I can't tell the difference between the original Delta track and this emulation, very impressed.
Frank Neumann
2 years ago
Wouw!! Sounds very, very good, best emulation i ever heard!
Dieter Zobel
2 years ago
much thanks
Mark Knight
2 years ago
Can't wait to try this tomorrow. Thanks for this Mike. Need to start building a community library of well known sounds then ;)
Tim Wright
2 years ago
Top stuff! Great fun... :oD
ZooTooK
2 years ago
Great work! Love the Koyaanisqatsi on chip!
rick scott
2 years ago
I owned a SID way back. Great fun. This gives me flashbacks. Well done! :-) (
Paule
2 years ago
Is this the real sound stuff for Marcus Friedrich, the choir director from Leipzig; isn't it?
Ng Mui
2 years ago
Not bad, sounds very commodore!
arachnaut
2 years ago
Great! Fun stuff!
now