y ? x : y) ]]> White Noise

Samples are evenly distributed between -1.0 and +1.0.

Based on work by James McCartney in SuperCollider.

random_state = random_state; ]]> Output Clipping Noise

Samples are either -1.0 or +1.0.

Based on work by James McCartney in SuperCollider.

random_state = random_state; ]]> Output Gray Noise

Generates noise which results from flipping random bits in a word. This type of noise has a high RMS level relative to its peak to peak level. The spectrum is emphasized towards lower frequencies.

Based on work by James McCartney in SuperCollider.

random_state = random_state; plugin_data->counter = counter; ]]> Output Pink Noise

Generates noise whose spectrum falls off in power by 3 dB per octave. This gives equal power over the span of each octave.

Based on work by James McCartney in SuperCollider.

> 13; total += newrand; dice[i] = newrand; } PUT_RANDOM (random_state); } ]]> > 13; k = (CTZ (counter)) & 15; prevrand = dice[k]; dice[k] = newrand; total += (newrand - prevrand); newrand = rt88_trand_3 (&s1, &s2, &s3) >> 13; ifval = (total + newrand) | 0x40000000; *(out++) = (*(float*)&ifval) - 3.f; } PUT_RANDOM (random_state); plugin_data->random_state = random_state; plugin_data->total = total; ]]> Output Brown Noise

Generates noise whose spectrum falls off in power by 6 dB per octave. This gives more power to the low range.

Based on work by James McCartney in SuperCollider.

1.f) z = 2.f - z; else if (z < -1.f) z = -2.f - z; *(out++) = z; } PUT_RANDOM (random_state); plugin_data->random_state = random_state; plugin_data->level = z; ]]> Output Dust

Generates random impulses from 0 to +1.0.

Based on work by James McCartney in SuperCollider.

0.f ? 1.f / thresh : 0.f; plugin_data->thresh = thresh; plugin_data->scale = scale; plugin_data->last_density = density; } while (sample_count--) { z = rt88_frand_3 (&s1, &s2, &s3); *(out++) = z < thresh ? z * scale : 0.f; } PUT_RANDOM (random_state); plugin_data->random_state = random_state; ]]> Density

The average density of the impulses, in Hz.

 Output Dust

Generates random impulses from -1.0 to +1.0.

Based on work by James McCartney in SuperCollider.

0.f ? 2.f / thresh : 0.f; plugin_data->thresh = thresh; plugin_data->scale = scale; plugin_data->last_density = density; } while (sample_count--) { z = rt88_frand_3 (&s1, &s2, &s3); *(out++) = z < thresh ? z * scale - 1.f : 0.f; } PUT_RANDOM (random_state); plugin_data->random_state = random_state; ]]> Density

The average density of the impulses, in Hz.

 Output Crackle

A noise generator based on a chaotic function.

Based on work by James McCartney in SuperCollider.

y1 = y1; plugin_data->y2 = y2; ]]> param

A parameter of the chaotic function with useful values from just below 1.0 to just above 2.0. Towards 2.0 the sound crackles.

Output Logistic

A noise generator based on the logistical population function, which exhibits chaotic behavior.

Based on work by James McCartney in SuperCollider.

y1 = y1; plugin_data->counter = counter; ]]> param

A parameter of the logistic model, to multiply with pop * (1 - pop). Things get interesting when it's around 4.

Frequency

The frequency at which the population is recalculated, in Hz.

 Starting Population

The starting population. Should be between 0 and 1.

Output LF Clip Noise

A noise generator outputting either -1 or +1. Recalculates the output at a set frequency.

Based on work by James McCartney in SuperCollider.

y1 = y1; plugin_data->counter = counter; plugin_data->random_state = random_state; ]]> Frequency

The frequency at which the output is recalculated, in Hz.

 Output LF White Noise

A noise generator outputting a random value between -1 and +1. Recalculates the output at a set frequency.

Based on work by James McCartney in SuperCollider.

y1 = y1; plugin_data->counter = counter; plugin_data->random_state = random_state; ]]> Frequency

The frequency at which the output is recalculated, in Hz.

 Output LF Smooth Noise

A noise generator outputting a random value between -1 and +1. Recalculates the output at a set frequency. Unlike LF White Noise, this generator interpolates between the output values to avoid a step change in the output.

Based on work by James McCartney in SuperCollider.

slope = slope = (next_level - level) / counter; } remain = MIN (counter, sample_count); counter -= remain; sample_count -= remain; while (remain--) { *(out++) = level; level += slope; } } PUT_RANDOM (random_state); plugin_data->level = level; plugin_data->counter = counter; plugin_data->random_state = random_state; ]]> Frequency

The frequency at which the output is recalculated, in Hz.

 Output