ref: 233c9646efb377aac5b0d87df6f8a16be94fa3fe
dir: /modules/data/peakeq.lua/
sptbl["peakeq"] = {
files = {
module = "peakeq.c",
header = "peakeq.h",
example = "ex_peakeq.c",
},
func = {
create = "sp_peakeq_create",
destroy = "sp_peakeq_destroy",
init = "sp_peakeq_init",
compute = "sp_peakeq_compute",
},
params = {
optional = {
{
name = "freq",
type = "SPFLOAT",
description = "The center frequency of the filter",
default = 1000
},
{
name = "bw",
type = "SPFLOAT",
description ="The peak/notch bandwidth in Hertz",
default = 125
},
{
name = "gain",
type = "SPFLOAT",
description ="The peak/notch gain",
default = 2
},
}
},
modtype = "module",
description = [[2nd order tunable equalization filter
This provides a peak/notch filter for building parametric/graphic equalizers. With gain above 1, there will be a peak at the center frequency with a width dependent on bw. If gain is less than 1, a notch is formed around the center frequency (freq).
]],
ninputs = 1,
noutputs = 1,
inputs = {
{
name = "input",
description = "Signal input."
},
},
outputs = {
{
name = "output",
description = "Signal output."
},
}
}