SoLoud

SoLoud::LofiFilter

The lofi filter is a signal degrading filter. You can adjust both the bit depth and the sample rate of the output, and these parameters can also be adjusted (and even faded) on the fly.


// Set up low-pass filter
gLofiFilter.setParams(8000, 5);  
// Set the filter as the first filter of the bus
gBus.setFilter(0, &gLofiFilter);

It's also possible to set, fade or oscillate the parameters of a "live" filter


gSoloud.fadeFilterParameter(
  gMusicHandle, // Sound handle
  0,            // First filter
  SoLoud::LofiFilter::BITDEPTH, // What to adjust
  2,            // Target value
  3);           // Time in seconds

Currently, four parameters can be adjusted:

Parameter	Description
WET	Filter's wet signal; 1.0f for fully filtered, 0.0f for original, 0.5f for half and half.
SAMPLERATE	Filter's samplerate parameter
BITDEPTH	Filter's bit-depth parameter

Note that the bit depth does not need to be an integer value.

LofiFilter.setParams()

Set the parameters of the filter.


gLofiFilter.setParams(8000, 5);

Changing the parameters does not affect "live" sounds. If invalid parameters are given, the function will return error.

Live Parameter Access

All filters inherit the live parameter access functions.

LofiFilter.getParamCount()
LofiFilter.getParamName()
LofiFilter.getParamType()
LofiFilter.getParamMax()
LofiFilter.getParamMin()