L/C/R Delay
This is a left/centre/right delay with feedback, based on the one in the Korg Trinity. Requested by Marek Peteraj.
filters);
free(plugin_data->buffer);
]]>
0.99f) {
fb = 0.99f;
}
ls_set_params(filters, fs * 0.0001f * powf(2.0f, low_d * 0.12f),
-0.5f * low_d, 0.5f, fs);
hs_set_params(filters + 1, fs * (0.41f - 0.0001f *
powf(2.0f, high_d * 0.12f)), -70.0f, 0.9f, fs);
ll = last_ll; /* Start value of Left Level */
ll_d = (llev * 0.01f - last_ll) * sc_r; /* Delta for Left Level */
cl = last_cl;
cl_d = (clev * 0.01f - last_cl) * sc_r;
rl = last_rl;
rl_d = (rlev * 0.01f - last_rl) * sc_r;
ld = last_ld;
ld_d = (ldel * fs * 0.001f - last_ld) * sc_r;
cd = last_cd;
cd_d = (cdel * fs * 0.001f - last_cd) * sc_r;
rd = last_rd;
rd_d = (rdel * fs * 0.001f - last_rd) * sc_r;
for (pos = 0; pos < sample_count; pos++) {
/* Increment linear interpolators */
ll += ll_d;
rl += rl_d;
cl += cl_d;
ld += ld_d;
rd += rd_d;
cd += cd_d;
/* Write input into delay line */
buffer[buffer_pos] = in_l[pos] + in_r[pos];
/* Add feedback, must be done afterwards for case where C delay = 0 */
fbs = buffer[(buffer_pos - f_round(cd)) & buffer_mask] * fb;
fbs = flush_to_zero(fbs);
fbs = biquad_run(filters, fbs);
fbs = biquad_run(filters + 1, fbs);
buffer[buffer_pos] += fbs;
/* Outputs from left and right delay beffers + centre mix */
left = buffer[(buffer_pos - f_round(ld)) & buffer_mask] * ll +
buffer[(buffer_pos - f_round(cd)) & buffer_mask] * cl;
right = buffer[(buffer_pos - f_round(rd)) & buffer_mask] * rl +
buffer[(buffer_pos - f_round(cd)) & buffer_mask] * cl;
/* Left and right channel outs */
buffer_write(out_l[pos], in_l[pos] * (1.0f - wet) +
(left * spr_t + right * spr_o) * wet);
buffer_write(out_r[pos], in_r[pos] * (1.0f - wet) +
(left * spr_o + right * spr_t) * wet);
buffer_pos = (buffer_pos + 1) & buffer_mask;
}
plugin_data->last_ll = ll;
plugin_data->last_cl = cl;
plugin_data->last_rl = rl;
plugin_data->last_ld = ld;
plugin_data->last_cd = cd;
plugin_data->last_rd = rd;
plugin_data->buffer_pos = buffer_pos;
]]>
L delay (ms)
The delay of the left output in milliseconds.
L level
The level of the left output.
C delay (ms)
The delay of the centre output in milliseconds.
C level
The level of the centre output.
R delay (ms)
The delay of the right output in milliseconds.
R level
The level of the right output.
Feedback
The amount of the C delay output that is mixed back into the delay.
High damp (%)
The damping of the high frequencies in the feedback path.
Low damp (%)
The damping of the low frequencies in the feedback path.
Spread
The width of the stereo image.
Dry/Wet level
The ammounts of the input and effect mixed to produce the output.
L input
R input
L output
R output