kopia lustrzana https://github.com/OpenRTX/OpenRTX
Modified time constant of DC removal high-pass filter to avoid a too high cut-off frequency when run with at fast sample rates
rodzic
6b31a73f42
commit
b998d3b78f
|
@ -74,9 +74,9 @@ void dsp_dcRemoval(filter_state_t *state, audio_sample_t *buffer, size_t length)
|
|||
{
|
||||
/*
|
||||
* Removal of DC component performed using an high-pass filter with
|
||||
* transfer function G(z) = (z - 1)/(z - 0.99).
|
||||
* transfer function G(z) = (z - 1)/(z - 0.999).
|
||||
* Recursive implementation of the filter is:
|
||||
* y(k) = u(k) - u(k-1) + 0.99*y(k-1)
|
||||
* y(k) = u(k) - u(k-1) + 0.999*y(k-1)
|
||||
*/
|
||||
|
||||
if(length < 2) return;
|
||||
|
@ -87,7 +87,7 @@ void dsp_dcRemoval(filter_state_t *state, audio_sample_t *buffer, size_t length)
|
|||
state->initialised = true;
|
||||
}
|
||||
|
||||
static constexpr float alpha = 0.99f;
|
||||
static constexpr float alpha = 0.999f;
|
||||
|
||||
for(size_t i = 1; i < length; i++)
|
||||
{
|
||||
|
|
Ładowanie…
Reference in New Issue