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updated 6 hours ago

idw.m by Andres Tovar

Inverse distance weight function to interpolate values based on the sampled points (metamodel, inverse distance weig..., interpolation)

idw(X0,F0,Xint,p,rad,L)

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updated 6 hours ago

Signal Segmentation and Modelling by Costas Panagiotakis

Simultaneous Signal Segmentation and Modelling based on Equipartition Principle (signal processing, segmentation, signal segmentation)

getBestSolution(d,filename,N,ignoreChars)

getDistanceFromSignal(Y,mode,S,CRITERION)

getDistanceFromSignalMSEAICBIC(Y,Sapo,Seos,CRITERION,AICB...

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updated 6 hours ago

Kernel PCA and Pre-Image Reconstruction by Quan Wang

standard PCA, Gaussian kernel PCA, polynomial kernel PCA, pre-image reconstruction (signal processing, large data, dimension reduction)

D=distanceMatrix(X)

K=kernel(X,type,para)

K=kernel_NewData(Y,X,type,para)

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updated 3 days ago

FFT-based convolution by Bruno Luong

Discrete convolution using FFT method (convolution, conv, conv2)

conv2fft(varargin)

convnfft(A, B, shape, dims, options)

convnfft_install

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updated 3 days ago

2-D Fast DOST Decompotion and Reconstruction by Yanwei Wang

This is the 2-D Fast DOST Decomposition and reconstruction. The computational complexity is O(NlnN) (image processing, signal processing, mathematics)

FOST_2D_DEC(S_input)

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updated 6 days ago

Cepstral Liftering of speech by Speech Processing

Spectral smoothing effects of low frequency cepstral liftering on log magnitude spectrum of speech (speech processing, signal processing, gui)

Callbacks_cepstral_liftering_GUI25(f,C,start_path)

[b,BNmag,cell_lifter,stitle,c]=cepstral_liftering_speech(...

[ss]=plot_speech_cursor(x,ss,curr_file,istart,graphicPane...

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updated 6 days ago

Cepstrum Aliasing by Speech Processing

Estimates the level of aliasing when finite size FFTs for the computation are used (speech processing, signal processing, gui)

Callbacks_cepstrum_aliasing_GUI25(f,C,start_path)

[c1,cell_dif,ncount]=cepstral_aliasing_speech(xin,ss,win,...

[ss]=plot_speech_cursor(x,ss,curr_file,istart,graphicPane...

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updated 6 days ago

LPC Error by Speech Processing

Shows the (flat spectrum) nature of the LPC error signal for a typical speech frame (voiced speech) (speech processing, signal processing, gui)

Callbacks_lpc_error_GUI25(f,C,start_path)

[A,G,a,r]=autolpc(x,p)

[ss]=plot_speech_cursor(x,ss,istart,fs,L,graphicPanel);

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updated 6 days ago

LPC Analysis with Varying p by Speech Processing

illustrates the matching behavior of LPC polynomial log magnitude spectrum to log magnitude of STFT (speech processing, signal processing, gui)

Callbacks_lpc_varying_p_GUI25(f,C,start_path)

[R,E,k,alpha,G]=durbin(xf,L,p,wtype)

[ss]=plot_speech_cursor(x,ss,istart,graphicPanel);

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updated 6 days ago

Narrowband/Wideband Spectra of a Speech Frame by Speech Processing

Compares and contrasts the effects of using either of two different windows (speech processing, signal processing, gui)

Callbacks_NB_WB_spectra_GUI25(f,C,start_path)

NB_WB_spectra_GUI25

[L,win1,win2]=setup_spectra(LWB,LNB,fs,wtype)

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updated 6 days ago

Spectral and phase magnitude by Speech Processing

Illustrates the impact of Spectral Magnitude and Phase on Long-Time Analysis and Synthesis of Speech (signal processing, gui)

Callbacks_phase_magnitude_GUI25(f,C,start_path)

Callbacks_phase_magnitude_GUI25(f,C,start_path)

[xin,xph,xmagn,xphr,timind]=phase_magnitude(xin,fs)

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updated 6 days ago

Plot Roots by Speech Processing

Computes and plots the roots of either an LPC polynomial or the resulting set of LSP polynomials (signal processing, gui tools)

(0:(NB-1))/Nfft * fs; end

Callbacks_plot_roots_GUI25(f,C,start_path)

[A,G,a,r]=autolpc(x,p)

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updated 6 days ago

Vowel Synthesis by Speech Processing

Synthesizes a vowel sound with a pitch frequency that linearly varies from a user-specified one (speech processing, signal processing, gui)

Callbacks_Vowel_Synthesis_GUI25(f,C)

Vowel_Synthesis_GUI25

create_pitch_period_contour.m

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updated 6 days ago

Windows Comparisons by Speech Processing

computes and compares and contrasts the time and frequency responses of 6 L-point commonly used wind (speech processing, signal processing, gui)

...

Callbacks_windows_GUI25(f,C)

gen_window(WL,M)

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updated 6 days ago

LPC Vocoder by Speech Processing

Builds an LPC vocoder, i.e., performs LPC analysis and synthesis on a speech file (speech processing, signal processing, gui tools)

Callbacks_lpc_vocoder_GUI25(f,C,start_path)

[A,G,a,r]=autolpc(x,p)

[Afile,Gfile,nframes,excx,exct]=lpc_analysis(xin,ss,es,L,...

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updated 6 days ago

Cepstrum Computation by Speech Processing

Compares conventional and analytical methods of cepstrum analysis of a finite duration speech frame (speech processing, signal processing, gui)

Callbacks_compute_cepstrum_GUI25(f,C,start_path)

[c,xhat]=compute_cep(bn,L,cepl,FS);

[ss]=plot_speech_cursor(x,ss,curr_file,istart,graphicPane...

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updated 6 days ago

Autocorrelation Pitch Detector by Speech Processing

Implements a pitch period detection algorithm using modified autocorrelation method (speech processing, signal processing, gui)

Callbacks_ac_pitch_GUI25(f,C,start_path)

ac_pitch_GUI25

b=hpf(n,fl1,fh1,fs,iplot)

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updated 6 days ago

ADPCM by Speech Processing

Implements an ADPCM coder for waveform coding of speech (speech processing, signal processing, gui)

(0:(NB-1))/Nfft * fs; end

Callbacks_adpcm_GUI25(f,C,start_path)

[P,F,R,T]=pd_spect(s,Fs,Nfft,Nwin)

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updated 6 days ago

Endpoint Detector by Speech Processing

Analyzes an audio file which contains a period of background signal, and a period of speech (speech processing, signal processing, gui)

Callbacks_endpoint_detector_GUI25(f,C,start_path)

[energy,zerocrossings,nfrm]=analysis(xin,L,R,fs)

endpoint_detector_GUI25

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updated 6 days ago

Time Domain Features by Speech Processing

Examines the behavior of a set of three time domain, short-time features (speech processing, signal processing, gui)

Callbacks_time_domain_features_GUI25(f,C,start_path)

time_domain_features_GUI25

pathnew_matlab_central.m

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updated 6 days ago

Mu Law Quantizer by Speech Processing

Illustrates the impact of mu-law companding (compressing and expanding) and quantization of a speech (speech processin, signal processing, gui)

(0:(NB-1))/Nfft * fs; end

Callbacks_mu_law_quantize_GUI25(f,C,start_path)

[P,F,R,T]=pd_spect_U(s,Fs,Nfft,Nwin)

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updated 6 days ago

Sample rate conversion by Speech Processing

converts the sampling rate of an existing speech or audio file from its current sampling rate (signal processing, gui)

Callbacks_SRC_GUI25(f,C,start_path)

SRC_GUI25

srconv(x,fsin,fsout)

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updated 6 days ago

Rosenburg Glottal Pulse by Speech Processing

Computes the discrete-time Rosenberg glottal pulse approximation in the time and frequency domains (speech processing, signal processing, gui)

Callbacks_glottal_pulse_GUI25(f,C)

glottal_pulse_GUI25

vowel_ir(fmts,bandwidths,fs)

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updated 6 days ago

Three Tube Vocal Tract by Speech Processing

This exercise computes the frequency response of a three-tube model of a human vocal tract. (signal processing, speech processing, gui)

Callbacks_Three_Tube_VT_GUI25(f,C)

Three_Tube_VT_gui25

[fr,vm,vmins,vmaxs,v]=three_tube_model_pt2(rG,rL,l1,l2,l3...

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updated 6 days ago

Waveform Similarity and Overlap Add (WSOLA) for Speech and Audio by Speech Processing

implements the WSOLA method of Verhelst and Roelands for for High Quality Time-Scaled speech (speech processing, signal processing, gui)

Callbacks_WSOLA_GUI25(f,C,start_path)

WSOLA_GUI25

[y,yn]=record_speech(fs,nsec)

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updated 6 days ago

Log Harmonic Product Spectrum by Speech Processing

Plots a sequence of frames of both HPS and LHPS (speech processing, signal processing, gui)

Callbacks_log_harmonic_GUI25(f,C,start_path)

[ss]=plot_speech_cursor(x,ss,curr_file,istart,graphicPane...

b=hpf(n,fl1,fh1,fs,iplot)

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updated 6 days ago

Formant Estimation by Speech Processing

Illustrates an algorithm for estimating the locations of the formants of voiced speech intervals (speech processing, signal processing, gui)

Callbacks_formant_estimation_GUI25(f,C,start_path)

[A,G,a,r]=autolpc(x,p)

[Fmc,startsav,endsav]=extend_runs(nrun,startsav,endsav,nf...

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updated 6 days ago

Isolated Digits Record by Speech Processing

Implements a speaker trained, template-based, isolated digit recognizer (speech processing, signal processing, gui)

Callbacks_dtw_isolated_digits_GUI25(f,C)

[distance,paths,distances]=dtw_backtrack_dist(cref,nref,c...

[y,fs,bits,fmt]=loadwav(name)

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updated 6 days ago

Composite Vocal Tract by Speech Processing

Illustrates vocal tract response, glottal pulse, radiation response for voiced and unvoiced speech (speech processing, signal processing, gui)

Callbacks_composite_vocal_tract_GUI25(f,C)

[peakl,peakh]=findpeak(vm,f,peak,bwlevel)

composite_vocal_tract_GUI25

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updated 6 days ago

Filter Signal by Speech Processing

Design a filter where an existing speech or audio signal using user-designed LPF, HPF or BPF (speech processing, signal processing, gui)

Callbacks_filter_GUI25(f,C,start_path)

Dinfinity( deltap,deltas )

fK( deltap,deltas )

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updated 6 days ago

Ideal Vocal Tract by Speech Processing

Illustrates effect of using periodic excitation for glottal input signal on a set of speech frames (speech processing, signal processing, gui)

Callbacks_ideal_vocal_tract_GUI25(f,C)

ideal_vocal_tract_GUI25

pathnew_matlab_central.m

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