dspark::TruePeakDetector< T, MaxChannels > Class Template Reference

Per-channel 4x-oversampled inter-sample peak estimator. More...

#include <TruePeakDetector.h>

Public Member Functions
void	reset () noexcept
	Clears all channel histories. Safe on the audio thread.
T	processSample (T sample, int channel) noexcept
	Feeds one sample and returns the local true-peak estimate.

Static Public Member Functions
static constexpr int	getLatency () noexcept
	Group delay of the interpolation FIR in samples (per phase).

Detailed Description

template<FloatType T, int MaxChannels = 16>
class dspark::TruePeakDetector< T, MaxChannels >

Per-channel 4x-oversampled inter-sample peak estimator.

Real-time safe: the polyphase coefficients are compile-time constants and processing is a fixed 48-multiply routine per sample. The reading is the maximum of the four official interpolation phases and the raw |sample| (the raw sample can only pull the estimate toward the true analog peak, never above it).

Template Parameters

T	Sample type (float or double).
MaxChannels	Number of independent channel histories.

Definition at line 47 of file TruePeakDetector.h.

Member Function Documentation

getLatency()

template<FloatType T, int MaxChannels = 16>

static constexpr int dspark::TruePeakDetector< T, MaxChannels >::getLatency ( )

inlinestaticconstexprnoexcept

Group delay of the interpolation FIR in samples (per phase).

Definition at line 101 of file TruePeakDetector.h.

processSample()

template<FloatType T, int MaxChannels = 16>

T dspark::TruePeakDetector< T, MaxChannels >::processSample ( T  sample, int  channel  )

inlinenoexcept

Feeds one sample and returns the local true-peak estimate.

The result is the maximum of |sample| and the absolute values of the four official Annex 2 interpolation phases evaluated at this position (together they tile the 4x-oversampled reconstruction grid).

Parameters

sample	Input sample.
channel	Channel index (0-based; clamped into range).

Returns

True-peak magnitude (>= |sample|).

Definition at line 68 of file TruePeakDetector.h.

reset()

template<FloatType T, int MaxChannels = 16>

void dspark::TruePeakDetector< T, MaxChannels >::reset ( )

inlinenoexcept

Clears all channel histories. Safe on the audio thread.

Definition at line 51 of file TruePeakDetector.h.

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

• Core/TruePeakDetector.h