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Author Topic: VSTi for recreating the Amiga sound  (Read 3970 times)

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Offline paul1981

Re: VSTi for recreating the Amiga sound
« on: September 13, 2012, 10:30:31 PM »
Quote from: minator;708023
There's a VSTi that does the sound of various old computers including the Amiga.  It'll even load mods and extract the samples:

http://www.youtube.com/watch?v=sQfS5PCPxn0


BTW if you want to emulate the Amiga sound you'll want to read this:

https://bel.fi/alankila/modguide/interpolate.txt

Haven't read it all, but the record needs putting straight here:

"This may surprise those who believe that because Amiga's maximum sampling rate is some 28867 Hz, the maximum frequency produced by Amiga is threrefore limited to 14.5 kHz or so. However, this is merely the highest frequency that may be produced without aliasing."

This is not true. With Paula, with the ECS or AGA chipset, you can have up to 56KHz sampling rate if running in one of the double line screen modes.
 

Offline paul1981

Re: VSTi for recreating the Amiga sound
« Reply #1 on: September 14, 2012, 10:53:43 AM »
Quote from: Digiman;708059
As for the double pal/productivity mode hack for the 32khz screen modes...well few people could use those modes on their Amiga and games or demos would run slower if used as it massively saps CPU time doesn't it? So dead end really in reality unless you want a blank screen when playing mods..

I thought we were talking about sound samples, not demo productions/mods.
A standard 68000 ECS Amiga such as the A500+ can play samples at 56KHz, if in a double line mode. And the Workbench screen wouldn't disappear either.

@BOOtDisk
Yes, with the CyberSound driver you can get 14bit stereo audio from Paula, and at 56KHz if in a double line mode. So playing cd's/16bit audio sounds really good, as the samples don't have to be downsampled at all (Paula will play them at 44.1KHz), scaled down to 14bits (68020 required for CyberSound).
You can try this out yourself if you like as it's included in the Play16 package:
http://aminet.net/package/mus/play/Play16
« Last Edit: September 14, 2012, 10:56:46 AM by paul1981 »