 0.f)
          return exp(LOG001 * delaytime / decaytime);
	else if (decaytime < 0.f)
          return -exp(LOG001 * delaytime / -decaytime);
        else
          return 0.f;
      }
    ]]>

Comb delay line, noninterpolating

Based on work by James McCartney in SuperCollider.

max_delay && *plugin_data->max_delay > 0) minsize = sample_rate * *plugin_data->max_delay; else if (plugin_data->delay_time) minsize = sample_rate * *plugin_data->delay_time; else minsize = sample_rate; /* 1 second default */ size = 1; while (size < minsize) size <<= 1; /* calloc sets the buffer to zero. */ buffer = calloc(size, sizeof(LADSPA_Data)); if (buffer) buffer_mask = size - 1; else buffer_mask = 0; write_phase = 0; ]]> buffer); ]]> last_delay_time = delay_time; plugin_data->last_decay_time = decay_time; plugin_data->delay_samples = delay_samples = CALC_DELAY (delay_time); plugin_data->feedback = feedback = calc_feedback (delay_time, decay_time); } if (delay_time == last_delay_time) { long read_phase = write_phase - (long)delay_samples; LADSPA_Data *readptr = buffer + (read_phase & buffer_mask); LADSPA_Data *writeptr = buffer + (write_phase & buffer_mask); LADSPA_Data *lastptr = buffer + buffer_mask + 1; if (decay_time == last_decay_time) { long remain = sample_count; while (remain) { long read_space = lastptr - readptr; long write_space = lastptr - writeptr; long to_process = MIN (MIN (read_space, remain), write_space); if (to_process == 0) return; // buffer not allocated. remain -= to_process; for (i=0; ilast_decay_time = decay_time; plugin_data->feedback = feedback; } write_phase += sample_count; } else { float next_delay_samples = CALC_DELAY (delay_time); float delay_samples_slope = (next_delay_samples - delay_samples) / sample_count; float next_feedback = calc_feedback (delay_time, decay_time); float feedback_slope = (next_feedback - feedback) / sample_count; for (i=0; ilast_delay_time = delay_time; plugin_data->last_decay_time = decay_time; plugin_data->feedback = feedback; plugin_data->delay_samples = delay_samples; } plugin_data->write_phase = write_phase; ]]> Input Output Max Delay (s)

Maximum delay. Used to set the delay buffer size upon activation. Cannot be modulated. Note that if you do not connect to this port before activation, it will default to 1 second.

Delay Time (s) Decay Time (s)

Time for the echoes to decay by 60 decibels. If this time is negative then the feedback coefficient will be negative, thus emphasizing only odd harmonics at an octave lower.

Comb delay line, linear interpolation

Based on work by James McCartney in SuperCollider.

Maximum delay. Used to set the delay buffer size upon activation. Cannot be modulated. Note that if you do not connect to this port before activation, it will default to 1 second.

Delay Time (s) Decay Time (s)

Time for the echoes to decay by 60 decibels. If this time is negative then the feedback coefficient will be negative, thus emphasizing only odd harmonics at an octave lower.

Comb delay line, cubic spline interpolation

Based on work by James McCartney in SuperCollider.

Maximum delay. Used to set the delay buffer size upon activation. Cannot be modulated. Note that if you do not connect to this port before activation, it will default to 1 second.

Delay Time (s) Decay Time (s)

Time for the echoes to decay by 60 decibels. If this time is negative then the feedback coefficient will be negative, thus emphasizing only odd harmonics at an octave lower.