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CS_get_color
The CS_get_color function derives a color from a signature.
void CS_get_color(
const CS_Signature sig, /* signature array */
CS_RGB_Color color /* color array */
);
Parameters
- sig
- Identifies an array containing a signature that was obtained through a call of
CS_get_signature.
- color
- Identifies a three-byte array into which this function will store a color represented
by an RGB triple. The first byte of the array will receive the Red component, the second
byte will receive the Green component, and the third byte will receive the Blue component.
The value of each component ranges from 0 to 255. When each component is assigned a value
of 0, the color is interpreted as black, whereas if each component equals 255, the color is
white.
Remarks
This function performs a mapping from the sonic universe to the color space. In rough
terms, high-pitched sounds receive more Red component, low-pitched sounds are mapped to
dark colors, mid-range sounds tend to be shades of Green or Blue, and noisy sounds (such as
idealized white noise) are assigned shades of gray. An invalid signature is mapped to
black.
The color obtained from this function is useful for display purposes, especially for
coloring an audio waveform display.
This function has no effect if the color parameter is NULL.
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