Path: utzoo!mnetor!uunet!cbmvax!grr
From: grr@cbmvax.UUCP (George Robbins)
Newsgroups: comp.sys.amiga
Subject: Re: Boot Sound
Message-ID: <3037@cbmvax.UUCP>
Date: 28 Dec 87 04:33:50 GMT
References: <6019@jade.BERKELEY.EDU>
Reply-To: grr@cbmvax.UUCP (George Robbins)
Organization: Commodore Technology, West Chester, PA
Lines: 30

In article <6019@jade.BERKELEY.EDU> spencer@eris () writes:
> Ok, here we all are in a world that is dominated by Amigas that don't
> use the KickStart disk anymore.  I want to do something to bring those
> days back.  I am writting a program that will have an Audio Queue, I
> pondered what sound I wanted to use for quite some time before I came
> up with the solution.  I want to use the sound the Amiga makes  during
> self test, before it requests the KickStart disk.  So I want to know...
> What are we hearing?  What is the wave form?  What is the frequency?
> I could digitize it, but that is a lot of data, I just assume not have.

According to notes in the source, it's supposed to be a snatch of Sigfried's
Theme from Wagner.  Since I was unable to locate this Wanger group in my
"Rolling Stone History of Rock and Roll", I am not able to testify as to
whether this is really so.  There are also notes from the "Close Encounters"
theme present, but they are commented out.

    C G e C D E F E D D
        ^  half-note

Note that you must have stereo sound for it to sound right, since as a
diagnostic test, it is using different channels for each note.

The actual code uses a sine-wave table and a table that controls the
"playing" of the notes.  Unfortunatly, since this code is from the
"bootstrap" ROM's, it isn't played or even present in the A500 or A2000.

-- 
George Robbins - now working for,	uucp: {uunet|ihnp4|rutgers}!cbmvax!grr
but no way officially representing	arpa: cbmvax!grr@uunet.uu.net
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)