Masks off bits in the mantissa of the floating point sample value. This introduces a quantization noise, but is less severe than linearly quantizing the signal.
| in |
The input signal. |
| bits |
The number of mantissa bits to preserve. A number from 0 to 23. |
| mul |
Output will be multiplied by this value. |
| add |
This value will be added to the output. |
// preserve only 3 bits of mantissa.{ MantissaMask.ar(SinOsc.ar(SinOsc.kr(0.2, 0, 400, 500), 0, 0.4), 3) }.play// the original{ SinOsc.ar(SinOsc.kr(0.2, 0, 400, 500), 0, 0.4) }.play// the difference.({ var in; in = SinOsc.ar(SinOsc.kr(0.2, 0, 400, 500), 0, 0.4); in - MantissaMask.ar(in, 3)}.play)// preserve 7 bits of mantissa.// This makes the lower 16 bits of the floating point number become zero.{ MantissaMask.ar(SinOsc.ar(SinOsc.kr(0.2, 0, 400, 500), 0, 0.4), 7) }.play// the original{ SinOsc.ar(SinOsc.kr(0.2, 0, 400, 500), 0, 0.4) }.play// the difference.({ var in; in = SinOsc.ar(SinOsc.kr(0.2, 0, 400, 500), 0, 0.4); in - MantissaMask.ar(in, 7)}.play)