dcase_util.processors.MfccAccelerationExtractorProcessor
- class dcase_util.processors.MfccAccelerationExtractorProcessor(fs=44100, win_length_samples=None, hop_length_samples=None, win_length_seconds=0.04, hop_length_seconds=0.02, spectrogram_type='magnitude', n_fft=2048, window_type='hamming_asymmetric', n_mfcc=20, n_mels=40, fmin=0, fmax=None, normalize_mel_bands=False, htk=False, width=9, **kwargs)[source]
Constructor
- Parameters
- fsint
Sampling rate of the incoming signal.
- win_length_samplesint
Window length in samples.
- hop_length_samplesint
Hop length in samples.
- win_length_secondsfloat
Window length in seconds.
- hop_length_secondsfloat
Hop length in seconds.
- spectrogram_typestr
Spectrogram type, magnitude or power spectrogram.
- n_fftint
Length of the FFT window.
- window_typestr
Window function type.
- n_melsint
Number of mel bands to generate.
- fminint
Lowest frequency in mel bands (in Hz).
- fmaxint
Highest frequency in mel bands (in Hz), if None, fmax = fs/2.0.
- normalize_mel_bandsbool
Normalize mel band to have peak at 1.0.
- htkbool
Use HTK formula for mel band creation instead of Slaney.
- n_mfccint
Number of MFCC coefficients.
- widthint
Width of the delta window.
- __init__(fs=44100, win_length_samples=None, hop_length_samples=None, win_length_seconds=0.04, hop_length_seconds=0.02, spectrogram_type='magnitude', n_fft=2048, window_type='hamming_asymmetric', n_mfcc=20, n_mels=40, fmin=0, fmax=None, normalize_mel_bands=False, htk=False, width=9, **kwargs)[source]
Constructor
- Parameters
- fsint
Sampling rate of the incoming signal.
- win_length_samplesint
Window length in samples.
- hop_length_samplesint
Hop length in samples.
- win_length_secondsfloat
Window length in seconds.
- hop_length_secondsfloat
Hop length in seconds.
- spectrogram_typestr
Spectrogram type, magnitude or power spectrogram.
- n_fftint
Length of the FFT window.
- window_typestr
Window function type.
- n_melsint
Number of mel bands to generate.
- fminint
Lowest frequency in mel bands (in Hz).
- fmaxint
Highest frequency in mel bands (in Hz), if None, fmax = fs/2.0.
- normalize_mel_bandsbool
Normalize mel band to have peak at 1.0.
- htkbool
Use HTK formula for mel band creation instead of Slaney.
- n_mfccint
Number of MFCC coefficients.
- widthint
Width of the delta window.
Methods
__init__([fs, win_length_samples, ...])Constructor
delimiter([exclude_delimiters])Use csv.sniffer to guess delimiter for CSV file
detect_file_format([filename])Detect file format from extension
empty()Check if file is empty
exists()Checks that file exists
extract(y)Extract features for the audio signal.
get_file_information()Get file information, filename
get_processing_chain_item()Get processing chain item with current Processor data.
get_spectrogram(y[, n_fft, ...])Spectrogram
get_window_function(n[, window_type])Window function
is_package([filename])Determine if the file is compressed package.
load([filename])Load file
log([level])Log container content
process([data, store_processing_chain])Extract features
save([filename])Save file
show([mode, indent, visualize])Print container content
to_html([indent])Get container information in a HTML formatted string
to_string([ui, indent])Get container information in a string
validate_format()Validate file format
Attributes
bytesFile size in bytes
descriptionExtractor description
input_typeInput data type
labelExtractor label
loggerLogger instance
md5Checksum for file.
output_typeOutput data type
valid_formatsValid file formats