1zhouhaoran1/moonmel/src/features/hpss

src

features

README
U
AnalysisResult
U
AudioBuffer
U
BiquadCoeffs
U
BiquadFilter
U
ChromaNorm
U
Complex
U
ContrastConfig
U
CqtConfig
U
FeatureConfig
U
FeatureMatrix
U
Formant
U
FormantConfig
U
FormantFrame
U
HpssConfig
U
HpssResult
U
LogScale
U
LoudnessResult
U
LpcResult
U
MaskMode
U
MelError
U
MelNorm
U
MelScale
U
MultiChannelAudioBuffer
U
OnsetConfig
U
OnsetMethod
U
PitchTrack
U
StreamingExtractor
U
TempoConfig
U
TempogramResult
U
WindowType
U
YinConfig
V
analyze
V
apply_k_weighting
V
autocorrelation
V
bluestein_fft
V
bluestein_ifft
V
chroma_filterbank
V
chroma_from_spectrogram
V
chroma_stft
V
compute_delta
V
compute_energy
V
compute_rms
V
cqt
V
cqt_frequencies
V
create_streaming_extractor
V
create_window
V
cumulative_mean_normalized_difference
V
dct_ii
V
decode_wav
V
deemphasis
V
dft
V
difference_function
V
durand_kerner
V
fft
V
fft_padded
V
formant_frequencies
V
formant_track
V
formants_frame
V
harmonic_energy_ratio
V
hpss
V
hpss_from_audio
V
idft
V
ifft
V
interchannel_level_difference
V
interchannel_phase_difference
V
istft
V
levinson_durbin
V
log_mel_spectrogram
V
loudness_meter
V
lpc
V
lpc_features
V
lpc_residual
V
lpc_to_lpcc
V
lpcc_features
V
median_filter_1d
V
median_filter_freq
V
median_filter_time
V
mel_filterbank
V
mel_spectrogram
V
mfcc
V
multichannel_mel
V
multichannel_mfcc
V
multichannel_stft
V
onset_detect_audio
V
onset_strength
V
onset_strength_audio
V
pad_reflect
V
peak_pick
V
percussive_energy_ratio
V
phase_vocoder
V
pitch_class_name
V
pitch_shift
V
pitch_yin
V
power_to_db
V
preemphasis
V
resample
V
resample_linear
V
resample_polyphase
V
resample_sinc
V
resample_to_length
V
rfft_padded
V
spectral_centroid
V
spectral_contrast
V
spectral_contrast_audio
V
spectral_flatness
V
spectral_flux
V
spectral_rolloff
V
stft
V
stft_complex
V
super_flux
V
tempogram
V
tempogram_from_onset
V
time_stretch
V
true_peak_db
V
yin_frame
V
zero_crossing_rate

1zhouhaoran1/moonmel/src/features/hpss does not have a README file

HpssConfig

pub(all) struct HpssConfig {
  kernel_harm : Int
  kernel_perc : Int
  power : Double
  margin_harm : Double
  margin_perc : Double
  mask_mode : MaskMode
} derive(Eq, @moonbitlang/core/debug.Debug
Debug)

Configuration parameters for Harmonic-Percussive Source Separation (HPSS).

HpssConfig::default

source

fn HpssConfig::default() -> HpssConfig

Default HPSS configuration (librosa-aligned default sizes: 31 time frames, 31 freq bins, power 2.0).

HpssConfig::equal

source

fn HpssConfig::equal(HpssConfig, HpssConfig) -> Bool

HpssConfig::not_equal

source

fn HpssConfig::not_equal(x : HpssConfig, y : HpssConfig) -> Bool

HpssConfig::to_repr

source

fn HpssConfig::to_repr(HpssConfig) -> @moonbitlang/core/debug.Repr
Repr

HpssResult

source

pub(all) struct HpssResult {
  harmonic : @1zhouhaoran1/moonmel/src/core/types.FeatureMatrix
FeatureMatrix
  percussive : @1zhouhaoran1/moonmel/src/core/types.FeatureMatrix
FeatureMatrix
  harmonic_mask : @1zhouhaoran1/moonmel/src/core/types.FeatureMatrix
FeatureMatrix
  percussive_mask : @1zhouhaoran1/moonmel/src/core/types.FeatureMatrix
FeatureMatrix
} derive(@moonbitlang/core/debug.Debug
Debug)

Result of Harmonic-Percussive Source Separation.

HpssResult::to_repr

source

fn HpssResult::to_repr(HpssResult) -> @moonbitlang/core/debug.Repr
Repr

MaskMode

source

pub(all) enum MaskMode {
  Soft
  Hard
} derive(Eq, @moonbitlang/core/debug.Debug
Debug)

Mask calculation mode for Harmonic-Percussive Source Separation.

MaskMode::equal

source

fn MaskMode::equal(MaskMode, MaskMode) -> Bool

MaskMode::not_equal

source

fn MaskMode::not_equal(x : MaskMode, y : MaskMode) -> Bool

MaskMode::to_repr

source

fn MaskMode::to_repr(MaskMode) -> @moonbitlang/core/debug.Repr
Repr

harmonic_energy_ratio

source

fn harmonic_energy_ratio(result : HpssResult) -> Array[Double]

Compute frame-wise harmonic energy ratio: E_harm / (E_harm + E_perc).

hpss

source

fn hpss(spec : @1zhouhaoran1/moonmel/src/core/types.FeatureMatrix
FeatureMatrix, config : HpssConfig) -> HpssResult

Perform Harmonic-Percussive Source Separation (HPSS) on a magnitude spectrogram.

hpss_from_audio

source

fn hpss_from_audio(audio : @1zhouhaoran1/moonmel/src/core/types.AudioBuffer
AudioBuffer, config : @1zhouhaoran1/moonmel/src/core/types.FeatureConfig
FeatureConfig, hpss_config : HpssConfig) -> Result[HpssResult, @1zhouhaoran1/moonmel/src/core/types.MelError
MelError]

High-level HPSS directly from single-channel AudioBuffer.

median_filter_1d

source

fn median_filter_1d(arr : Array[Double], kernel_size : Int) -> Array[Double]

1D median filter with edge clamping boundary conditions.

median_filter_freq

source

fn median_filter_freq(matrix : @1zhouhaoran1/moonmel/src/core/types.FeatureMatrix
FeatureMatrix, kernel_size : Int) -> @1zhouhaoran1/moonmel/src/core/types.FeatureMatrix
FeatureMatrix

Median filter along frequency axis (each time frame filtered across frequency bins).

median_filter_time

source

fn median_filter_time(matrix : @1zhouhaoran1/moonmel/src/core/types.FeatureMatrix
FeatureMatrix, kernel_size : Int) -> @1zhouhaoran1/moonmel/src/core/types.FeatureMatrix
FeatureMatrix

Median filter along time axis (each frequency row filtered across time columns).

percussive_energy_ratio

source

fn percussive_energy_ratio(result : HpssResult) -> Array[Double]

Compute frame-wise percussive energy ratio: E_perc / (E_harm + E_perc).

Source Files

hpss.mbt

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#HpssConfig

#HpssConfig::default

#HpssConfig::equal

#HpssConfig::not_equal

#HpssConfig::to_repr

#HpssResult

#HpssResult::to_repr

#MaskMode

#MaskMode::equal

#MaskMode::not_equal

#MaskMode::to_repr

#harmonic_energy_ratio

#hpss

#hpss_from_audio

#median_filter_1d

#median_filter_freq

#median_filter_time

#percussive_energy_ratio

Source Files

HpssConfig

HpssConfig::default

HpssConfig::equal

HpssConfig::not_equal

HpssConfig::to_repr

HpssResult

HpssResult::to_repr

MaskMode

MaskMode::equal

MaskMode::not_equal

MaskMode::to_repr

harmonic_energy_ratio

hpss

hpss_from_audio

median_filter_1d

median_filter_freq

median_filter_time

percussive_energy_ratio