Ship::SoundMatrixDecoder Class Reference

#include <SoundMatrixDecoder.h>

Public Member Functions
	SoundMatrixDecoder (int32_t sampleRate)
	~SoundMatrixDecoder ()=default
void	ResetState ()
std::tuple< const uint8_t *, int >	Process (const uint8_t *buf, size_t len)

Detailed Description

Passive matrix decoder for stereo to 5.1 surround upmixing. Implements standard audio matrix decoding techniques using:

• Linkwitz-Riley crossover filters for frequency band separation
• All-pass filters for phase manipulation
• Delay lines for surround channel timing

Constructor & Destructor Documentation

SoundMatrixDecoder()

Ship::SoundMatrixDecoder::SoundMatrixDecoder

(

int32_t

sampleRate

)

Construct and initialize the decoder with a specific sample rate.

Parameters

sampleRate

The audio sample rate in Hz

~SoundMatrixDecoder()

Ship::SoundMatrixDecoder::~SoundMatrixDecoder ( )

default

Member Function Documentation

Process()

std::tuple< const uint8_t *, int > Ship::SoundMatrixDecoder::Process	(	const uint8_t *	buf,
		size_t	len
	)

Decode stereo to 5.1 surround

Parameters

stereoInput	Interleaved stereo samples [L0, R0, L1, R1, ...]
samplePairs	Number of stereo sample pairs to process

Returns

Pointer to internal buffer with interleaved 5.1 samples [FL, FR, C, LFE, SL, SR, ...]

ResetState()

void Ship::SoundMatrixDecoder::ResetState

(

)

Reset filter states without recomputing coefficients. Useful when audio is interrupted to prevent clicks.

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The documentation for this class was generated from the following file:

• include/ship/audio/SoundMatrixDecoder.h