Re: Typical Newbie Problem: Tone Generation

[tmoran@acm.org]

Windows has a tone generation call.  I believe you can see it in a
download of the free Claw.Sounds
    procedure Beep (Hertz : in Hertz_Type := 400;
                    Milliseconds : in Claw.DWord := 200);
        -- Create a Beep with the specified Hertz and Millisecond duration.
        -- Raises:
        --      Windows_Error if Windows reports an error.
        --      Not_Supported_Error if not running on Windows NT and the
        --          parameters have values other than the default ones.
        -- Implementation note: On Windows 95, this always triggers the
        -- system default sound; the parameter values aren't used.  Use the
        -- control panel to adjust the sound or turn it off.
        -- Note:
        -- This routine waits for the sound to be played, returning only
        -- when it is done.

The supported Claw has the routines for playing waveforms and a little demo
that plays a tune where you can adjust the tone characteristics, and thus
the "instrument", on the fly.