[sdiy] Generating notes from a source

[Scott Gravenhorst]

If the 'sample' is stored in a ROM or RAM, you must
have access to it's address lines.  A VCO is then
used to clock an N bit binary counter where N is the 
number of address lines.  The counter's outputs are
connected to the address lines.  The rate at which
the address lines are 'scanned' determines the
pitch of the system.  Most cheap voice R/C chips
do not have access to the address lines, so you will
not be able to do this unless it's 'clock' is allowed
to be variable over a fairly wide range.

"alan fullarton" <alan_fullarton at hotmail.com> wrote:
>Hello all,
>I'm new to the list.
>I want to create notes from a source sound and need some help
>to do this.
>I have been playing with a voice record and playback IC to play
>a looping tone, now I need a way to use that tone to create
>eight notes for a wind instrument.
>What is a simple way to do this?
>I'm still a little new to electronics but can get around OK.
>Thanks,
>Alan
>
>_________________________________________________________________
>Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp
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