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<?xml version="1.0"?>
<!DOCTYPE ladspa SYSTEM "ladspa-swh.dtd">
<?xml-stylesheet href="ladspa.css" type="text/css"?>
<ladspa>
<global>
<meta name="maker" value="Steve Harris <steve@plugin.org.uk>"/>
<meta name="copyright" value="GPL"/>
<meta name="properties" value="HARD_RT_CAPABLE"/>
<code>
#include "util/biquad.h"
</code>
</global>
<plugin label="triplePara" id="1204" class="ParaEQPlugin">
<name>Triple band parametric with shelves</name>
<p>Actually five bands of eq, but the first and last are locked to shelving filters.</p>
<p>For details see the single band parametric (section \ref{singlePara}).</p>
<callback event="instantiate"><![CDATA[
fs = s_rate;
filters = calloc(5, sizeof(biquad));
biquad_init(&filters[0]);
biquad_init(&filters[1]);
biquad_init(&filters[2]);
biquad_init(&filters[3]);
biquad_init(&filters[4]);
]]></callback>
<callback event="activate"><![CDATA[
biquad_init(&filters[0]);
biquad_init(&filters[1]);
biquad_init(&filters[2]);
biquad_init(&filters[3]);
biquad_init(&filters[4]);
]]></callback>
<callback event="run"><![CDATA[
unsigned long pos;
float in;
ls_set_params(&filters[0], fc_L, gain_L, bw_L, fs);
eq_set_params(&filters[1], fc_1, gain_1, bw_1, fs);
eq_set_params(&filters[2], fc_2, gain_2, bw_2, fs);
eq_set_params(&filters[3], fc_3, gain_3, bw_3, fs);
hs_set_params(&filters[4], fc_H, gain_H, bw_H, fs);
for (pos = 0; pos < sample_count; pos++) {
in = biquad_run(&filters[0], input[pos]);
in = biquad_run(&filters[1], in);
in = biquad_run(&filters[2], in);
in = biquad_run(&filters[3], in);
in = biquad_run(&filters[4], in);
buffer_write(output[pos], in);
}
]]></callback>
<callback event="activate"><![CDATA[
biquad_init(&filters[0]);
biquad_init(&filters[1]);
biquad_init(&filters[2]);
biquad_init(&filters[3]);
biquad_init(&filters[4]);
]]></callback>
<callback event="cleanup">
free(plugin_data->filters);
</callback>
<port label="gain_L" dir="input" type="control" hint="default_0">
<name>Low-shelving gain (dB)</name>
<range min="-70" max="+30"/>
</port>
<port label="fc_L" dir="input" type="control" hint="logarithmic,sample_rate,default_minimum">
<name>Low-shelving frequency (Hz)</name>
<range min="0.0001" max="0.49"/>
</port>
<port label="bw_L" dir="input" type="control" hint="default_middle">
<name>Low-shelving slope</name>
<range min="0" max="1"/>
</port>
<port label="gain_1" dir="input" type="control" hint="default_0">
<name>Band 1 gain (dB)</name>
<range min="-70" max="+30"/>
</port>
<port label="fc_1" dir="input" type="control" hint="logarithmic,sample_rate,default_low">
<name>Band 1 frequency (Hz)</name>
<range min="0.0001" max="0.49"/>
</port>
<port label="bw_1" dir="input" type="control" hint="default_1">
<name>Band 1 bandwidth (octaves)</name>
<range min="0" max="4"/>
</port>
<port label="gain_2" dir="input" type="control" hint="default_0">
<name>Band 2 gain (dB)</name>
<range min="-70" max="+30"/>
</port>
<port label="fc_2" dir="input" type="control" hint="logarithmic,sample_rate,default_middle">
<name>Band 2 frequency (Hz)</name>
<range min="0.0001" max="0.49"/>
</port>
<port label="bw_2" dir="input" type="control" hint="default_1">
<name>Band 2 bandwidth (octaves)</name>
<range min="0" max="4"/>
</port>
<port label="gain_3" dir="input" type="control" hint="default_0">
<name>Band 3 gain (dB)</name>
<range min="-70" max="+30"/>
</port>
<port label="fc_3" dir="input" type="control" hint="logarithmic,sample_rate,default_high">
<name>Band 3 frequency (Hz)</name>
<range min="0.0001" max="0.49"/>
</port>
<port label="bw_3" dir="input" type="control" hint="default_1">
<name>Band 3 bandwidth (octaves)</name>
<range min="0" max="4"/>
</port>
<port label="gain_H" dir="input" type="control" hint="default_0">
<name>High-shelving gain (dB)</name>
<range min="-70" max="+30"/>
</port>
<port label="fc_H" dir="input" type="control" hint="logarithmic,sample_rate,default_maximum">
<name>High-shelving frequency (Hz)</name>
<range min="0.0001" max="0.49"/>
</port>
<port label="bw_H" dir="input" type="control" hint="default_middle">
<name>High-shelving slope</name>
<range min="0" max="1"/>
</port>
<port label="input" dir="input" type="audio">
<name>Input</name>
<range min="-1.0" max="+1.0"/>
</port>
<port label="output" dir="output" type="audio">
<name>Output</name>
<range min="-1.0" max="+1.0"/>
</port>
<instance-data label="fs" type="float"/>
<instance-data label="filters" type="biquad *"/>
</plugin>
</ladspa>
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