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- Mel-frequency_cepstrum abstract "In sound processing, the mel-frequency cepstrum (MFC) is a representation of the short-term power spectrum of a sound, based on a linear cosine transform of a log power spectrum on a nonlinear mel scale of frequency.Mel-frequency cepstral coefficients (MFCCs) are coefficients that collectively make up an MFC. They are derived from a type of cepstral representation of the audio clip (a nonlinear "spectrum-of-a-spectrum"). The difference between the cepstrum and the mel-frequency cepstrum is that in the MFC, the frequency bands are equally spaced on the mel scale, which approximates the human auditory system's response more closely than the linearly-spaced frequency bands used in the normal cepstrum. This frequency warping can allow for better representation of sound, for example, in audio compression.MFCCs are commonly derived as follows: Take the Fourier transform of (a windowed excerpt of) a signal. Map the powers of the spectrum obtained above onto the mel scale, using triangular overlapping windows. Take the logs of the powers at each of the mel frequencies. Take the discrete cosine transform of the list of mel log powers, as if it were a signal. The MFCCs are the amplitudes of the resulting spectrum.There can be variations on this process, for example: differences in the shape or spacing of the windows used to map the scale, or addition of dynamics features such as "delta" and "delta-delta" (first- and second-order frame-to-frame difference) coefficients.The European Telecommunications Standards Institute in the early 2000s defined a standardised MFCC algorithm to be used in mobile phones.".
- Mel-frequency_cepstrum wikiPageExternalLink guide-mel-frequency-cepstral-coefficients-mfccs.
- Mel-frequency_cepstrum wikiPageID "300730".
- Mel-frequency_cepstrum wikiPageLength "8351".
- Mel-frequency_cepstrum wikiPageOutDegree "25".
- Mel-frequency_cepstrum wikiPageRevisionID "678961807".
- Mel-frequency_cepstrum wikiPageWikiLink Audio_signal_processing.
- Mel-frequency_cepstrum wikiPageWikiLink Category:Signal_processing.
- Mel-frequency_cepstrum wikiPageWikiLink Cepstrum.
- Mel-frequency_cepstrum wikiPageWikiLink Cosine_transform.
- Mel-frequency_cepstrum wikiPageWikiLink Data_compression.
- Mel-frequency_cepstrum wikiPageWikiLink Discrete_cosine_transform.
- Mel-frequency_cepstrum wikiPageWikiLink ETSI.
- Mel-frequency_cepstrum wikiPageWikiLink European_Telecommunications_Standards_Institute.
- Mel-frequency_cepstrum wikiPageWikiLink Feature_(machine_learning).
- Mel-frequency_cepstrum wikiPageWikiLink Features_(pattern_recognition).
- Mel-frequency_cepstrum wikiPageWikiLink Fourier_transform.
- Mel-frequency_cepstrum wikiPageWikiLink Gammatone_filter.
- Mel-frequency_cepstrum wikiPageWikiLink Genre.
- Mel-frequency_cepstrum wikiPageWikiLink Logarithm.
- Mel-frequency_cepstrum wikiPageWikiLink Mel_scale.
- Mel-frequency_cepstrum wikiPageWikiLink Mobile_phone.
- Mel-frequency_cepstrum wikiPageWikiLink Music_information_retrieval.
- Mel-frequency_cepstrum wikiPageWikiLink Nonlinear_system.
- Mel-frequency_cepstrum wikiPageWikiLink Power_spectrum.
- Mel-frequency_cepstrum wikiPageWikiLink Principal_component_analysis.
- Mel-frequency_cepstrum wikiPageWikiLink Principal_components.
- Mel-frequency_cepstrum wikiPageWikiLink Psychoacoustics.
- Mel-frequency_cepstrum wikiPageWikiLink Sine_and_cosine_transforms.
- Mel-frequency_cepstrum wikiPageWikiLink Sound_processing.
- Mel-frequency_cepstrum wikiPageWikiLink Speaker_recognition.
- Mel-frequency_cepstrum wikiPageWikiLink Spectral_density.
- Mel-frequency_cepstrum wikiPageWikiLink Speech_recognition.
- Mel-frequency_cepstrum wikiPageWikiLink Window_function.
- Mel-frequency_cepstrum wikiPageWikiLinkText "Mel-frequency cepstrum".
- Mel-frequency_cepstrum wikiPageWikiLinkText "mel-frequency cepstrum".
- Mel-frequency_cepstrum hasPhotoCollection Mel-frequency_cepstrum.
- Mel-frequency_cepstrum wikiPageUsesTemplate Template:Reflist.
- Mel-frequency_cepstrum subject Category:Signal_processing.
- Mel-frequency_cepstrum hypernym Representation.
- Mel-frequency_cepstrum type Field.
- Mel-frequency_cepstrum comment "In sound processing, the mel-frequency cepstrum (MFC) is a representation of the short-term power spectrum of a sound, based on a linear cosine transform of a log power spectrum on a nonlinear mel scale of frequency.Mel-frequency cepstral coefficients (MFCCs) are coefficients that collectively make up an MFC. They are derived from a type of cepstral representation of the audio clip (a nonlinear "spectrum-of-a-spectrum").".
- Mel-frequency_cepstrum label "Mel-frequency cepstrum".
- Mel-frequency_cepstrum sameAs Mel_Frequency_Cepstral_Coefficients.
- Mel-frequency_cepstrum sameAs MFCC.
- Mel-frequency_cepstrum sameAs Mel-frekvens_cepstrum.
- Mel-frequency_cepstrum sameAs m.01rvw5.
- Mel-frequency_cepstrum sameAs Q440370.
- Mel-frequency_cepstrum sameAs Q440370.
- Mel-frequency_cepstrum sameAs 梅爾倒頻譜.
- Mel-frequency_cepstrum wasDerivedFrom Mel-frequency_cepstrum?oldid=678961807.
- Mel-frequency_cepstrum isPrimaryTopicOf Mel-frequency_cepstrum.