pulp::dataplane::SpectrumData Struct Reference

Published one-sided amplitude spectrum (lock-free via TripleBuffer). More...

#include <visualization_bridge.hpp>

Public Attributes
std::array< float, kMaxBins >	magnitude_db {}
int	num_bins = 0
std::uint64_t	epoch = 0
std::uint64_t	sequence_number = 0
std::uint64_t	dropped_frames = 0
int	source_channels = 0
int	fft_size = 0
float	sample_rate = 0.0f
float	floor_db = -120.0f

Static Public Attributes
static constexpr int	kMaxBins = 4097

Detailed Description

Published one-sided amplitude spectrum (lock-free via TripleBuffer).

magnitude_db is calibrated in peak-amplitude dBFS: a full-scale, bin-centered sinusoid reads 0 dBFS at an interior bin. DC and Nyquist use their single-sided normalization. Multiple channels are combined by averaging their normalized linear power, so one active side of a stereo stream reads 3.0103 dB below the same signal on both sides. Values above 0 dBFS are valid when the analyzed signal exceeds full scale.

Member Data Documentation

dropped_frames

std::uint64_t pulp::dataplane::SpectrumData::dropped_frames = 0

epoch

std::uint64_t pulp::dataplane::SpectrumData::epoch = 0

fft_size

int pulp::dataplane::SpectrumData::fft_size = 0

floor_db

float pulp::dataplane::SpectrumData::floor_db = -120.0f

kMaxBins

int pulp::dataplane::SpectrumData::kMaxBins = 4097

staticconstexpr

magnitude_db

std::array<float, kMaxBins> pulp::dataplane::SpectrumData::magnitude_db {}

num_bins

int pulp::dataplane::SpectrumData::num_bins = 0

sample_rate

float pulp::dataplane::SpectrumData::sample_rate = 0.0f

sequence_number

std::uint64_t pulp::dataplane::SpectrumData::sequence_number = 0

source_channels

int pulp::dataplane::SpectrumData::source_channels = 0

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

• /home/runner/work/pulp/pulp/core/dataplane/include/pulp/dataplane/visualization_bridge.hpp