GAIA Exploring Sound (PDF) - Roland Corporation Australia
GAIA Exploring Sound (PDF) - Roland Corporation Australia
GAIA Exploring Sound (PDF) - Roland Corporation Australia
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Section 3<br />
The Shape Controls<br />
Now we get to the exciting part of the Oscillator section. As you<br />
know we have been referring to this section as the “Pitch”<br />
section, and so far we have proved this to be correct.<br />
What do you see? Something like this?...<br />
Gallery 2.1 Sawtooth Waveform<br />
However, the original Oscillator circuits from those early<br />
synthesizers had another function, perhaps a more powerful<br />
function.<br />
Remember earlier how we suggested that an ocean wave<br />
traveling smoothly across the deep blue sea might sound<br />
completely different to that same wave crashing on a beach. At<br />
the time we were suggesting that the shape of the wave was<br />
involved.<br />
Now recall our early synthesizer circuit that generates a wave,<br />
sent via a speaker to our ear. Would the shape make a<br />
difference?<br />
Back to our new best friend, the Wave Viewer.<br />
This Sawtooth is not mathematically correct, but sounds better<br />
Audio 2.2 Sawtooth Waveform<br />
Initialize the Patch and switch on the Wave Viewer. Play any note<br />
and look at the screen.<br />
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