signalsmith::mix::StereoMultiMixer< Sample, channels > Class Template Reference

#include <mix.h>

Detailed Description

template<typename Sample, int channels>
class signalsmith::mix::StereoMultiMixer< Sample, channels >

Upmix/downmix a stereo signal to an (even) multi-channel signal.

When spreading out, it rotates the input by various amounts (e.g. a four-channel signal would produce (left, right, mid side)), such that energy is preserved for each pair.

When mixing together, it uses the opposite rotations, such that upmix → downmix produces the same stereo signal (when scaled by .scalingFactor1().

Static Methods
static constexpr Sample	scalingFactor1 ()
	Scaling factor for the downmix, if channels are phase-aligned.
static Sample	scalingFactor2 ()
	Scaling factor for the downmix, if channels are independent.

Methods
template<class In, class Out>
void	stereoToMulti (In &input, Out &output) const
template<class In, class Out>
void	multiToStereo (In &input, Out &output) const

Method Details

scalingFactor1()

template<typename Sample, int channels>

static constexpr Sample signalsmith::mix::StereoMultiMixer< Sample, channels >::scalingFactor1 ( )

inlinestaticconstexpr

Scaling factor for the downmix, if channels are phase-aligned.

scalingFactor2()

template<typename Sample, int channels>

static Sample signalsmith::mix::StereoMultiMixer< Sample, channels >::scalingFactor2 ( )

inlinestatic

Scaling factor for the downmix, if channels are independent.