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From: tre@sdcarl.UUCP (Tom Erbe)
Newsgroups: net.music.synth
Subject: Re: Sequencerless Drum Box
Message-ID: <272@sdcarl.UUCP>
Date: Tue, 17-Dec-85 12:19:22 EST
Article-I.D.: sdcarl.272
Posted: Tue Dec 17 12:19:22 1985
Date-Received: Fri, 20-Dec-85 01:36:18 EST
References: <123@ubc-cs.UUCP> <987@cadovax.UUCP>
Reply-To: tre@sdcarl.UUCP (Tom Erbe)
Organization: Computer Audio Research Lab, UCSD, San Diego, Calif.
Lines: 21

In article <987@cadovax.UUCP> keithd@cadovax.UUCP (Keith Doyle) writes:
>		....I just picked up the Yamaha RX-21, a $250.00 box that uses
>digitized live drums, MIDI, and a pretty good sequencer (at least to me, but
>then I've been using the Mattel Synsonics up till now).
>
>					....it seems that the sound prom
>is completely seperate from the program prom, and so it might be able to
>support alternate sound proms, though you'll have to figure out how they
>are storing the information (PCM in some form).  Though I've found the
>claps useful, I'd like to have the option of more bizzare sounds such as
>gunshot, oxygen tank dropped on concrete, etc.
>

	I have heard that all the Yamaha machines use serial ROMs to store
the sound information, which makes it difficult to put your own sounds in the
box.  (Most commercial alternate sound chips are on byte-wide EPROMs).  


-- 
	thomas r. erbe
	{ucbvax,ihnp4,akgua,hplabs,sdcsvax}!sdcarl!tre