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updated 10 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)

Ideal Vocal Tract

Callbacks_ideal_vocal_tract_GUI25(f,C)

ideal_vocal_tract_GUI25

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updated 14 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)

Filter Signal

Callbacks_filter_GUI25(f,C,start_path)

Dinfinity( deltap,deltas )

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updated 21 days ago

Echo Signal by Speech Processing

This exercise demonstrates how and echo can be introduced into a signal. (speech processing, gui)

Echo Signal

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

Callbacks_echo_signal_G25(f,C,start_path)

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updated 23 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)

Composite Vocal Tract

Callbacks_composite_vocal_tract_GUI25(f,C)

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

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updated 23 days ago

Isolated Digits Record by Speech Processing

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

Isolated Digit Speech Recognizer

Callbacks_dtw_isolated_digits_GUI25(f,C)

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

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updated 23 days ago

Mu Law Compander by Speech Processing

This exercise shows the mu-law input-output characteristic for a range of values of mu from 1 to 500 (speech processing, gui)

Mu Law Compander

Callbacks_mu_law_compander_GUI25(f,C,start_path)

mu_law_compander_GUI25

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updated 1 month 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)

Formant Estimation

Callbacks_formant_estimation_GUI25(f,C,start_path)

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

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updated 1 month ago

SNR by Speech Processing

This MATLAB exercise computes and plots the SNR of a quantized speech file. (speech processing, gui)

SNR

Callbacks_snr_GUI25(f,C,start_path)

qplot(s,nbits,mu,ncases,iplot)

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updated 1 month ago

Cepstral Pitch by Speech Processing

This exercise implements a pitch period detector based on detecting and tracking peaks in speech. (speech processing, gui)

Cepstral Pitch

Callbacks_cepstral_pitch_GUI25(f,C,start_path)

cepstral_pitch_GUI25

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updated 1 month ago

Log Harmonic Product Spectrum by Speech Processing

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

Log Harmonic

Callbacks_log_harmonic_GUI25(f,C,start_path)

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

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updated 1 month 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)

Waveform Similarity and Overlap Add

Callbacks_WSOLA_GUI25(f,C,start_path)

WSOLA_GUI25

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updated 1 month ago

Quantizer Characteristic by Speech Processing

This exercisedemonstartes quantizing speech using uniform and a logarithmic (mu-law) quantizer. (speech processing, gui)

Quantizer Characteristic

Callbacks_quantizer_characteristic_GUI25(f,C)

quantizere_characteristic_GUI25

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updated 1 month 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)

Three Tube Vocal Tract

Callbacks_Three_Tube_VT_GUI25(f,C)

Three_Tube_VT_gui25

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updated 1 month 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)

Rosenberg Glottal Pulse

Callbacks_glottal_pulse_GUI25(f,C)

glottal_pulse_GUI25

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updated 1 month ago

Subband coders by Speech Processing

This MATLAB exercise implements a two-band subband coder. (speech processing, gui)

Subband coders

Callbacks_subband_coders_GUI25(f,C,start_path)

plotresp(h0,N,fs,fname)

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updated 1 month ago

Play Pitch Period Contour by Speech Processing

The exercise tries to separate the main properties of speech excitation function from vocal tract. (speech processing, gui)

Play Pitch Period Contour

Callbacks_play_pitch_GUI25(f,C,start_path)

[pd1,pd2,p1,p2]=pitch_detect_cepstrum(peaksigo,fsd,iplot,...

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updated 1 month ago

Bayesian VUS Classifier by Speech Processing

This exercise utilizes four programs to train a Bayesian classifier and classify frames of signals. (speech processing, gui)

VUS Analysis

VUS Training

Callbacks_VUS_Analysis_GUI25(f,C,start_path)

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updated 1 month 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)

Sample Rate Conversion

Callbacks_SRC_GUI25(f,C,start_path)

SRC_GUI25

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updated 1 month ago

Spectrogram by Speech Processing

This exercise plots wideband and narrowband speech spectrograms for a user-designated speech file. (speech processing, gui)

Spectrogram

Callbacks_Spectrogram_GUI25(f,C,start_path)

Spectrogram_GUI25

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updated 1 month ago

Phase Vocoder by Speech Processing

This MATLAB exercise implements a phase vocoder. (speech processing, gui)

Phase Vocoder

Callbacks_phase_vocoder_GUI25(f,C,start_path)

[B,BA,F,T]=create_spectrogram(y,nfft,fs,w,dyn_range,logLi...

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updated 1 month 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)

Mu-law Quantizer

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

Callbacks_mu_law_quantize_GUI25(f,C,start_path)

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updated 1 month ago

Uniform Quantization by Speech Processing

This MATLAB exercise illustrates the process of uniform quantization of a speech sample. (speech processing, gui)

Uniform Quantization

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

Callbacks_uniform_quantization_GUI25(f,C,start_path)

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updated 1 month ago

spectral smoothing by Speech Processing

This exercise smooths the log magnitude spectrum of a frame of voiced speech using liftering. (speech processing, gui)

Spectral Smoothing

Callbacks_spectral_smoothing_GUI25(f,C,start_path)

[X1s,X2s,X3s,L]=compute_spectra(xin,fs,ss,Lm,p,iwin_STFT,...

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updated 1 month ago

LSP roots by Speech Processing

This exercise compares the properties of the LPC polynomial match to a frame of speech with the LSP. (speech processing, gui)

LSP roots

Callbacks_lsp_roots_GUI25(f,C,start_path)

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

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updated 1 month ago

Cepstrum Computation FIR by Speech Processing

This exercise compares three algorithms for computing the complex cepstrum of two finite sequences. (speech processing, gui)

Complex Cepstrum Computation FIR

Callbacks_complex_cepstrum_fir_GUI25(f,C)

[b,L,stitle,freq,BNmag_ph,phase_rad,nfft,cepl,xhat1,xhats...

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updated 1 month 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)

Time Domain Features of Speech

Callbacks_time_domain_features_GUI25(f,C,start_path)

time_domain_features_GUI25

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updated 1 month ago

Record Display Speech by Speech Processing

Record your own speech file to use for other exercises. (speech processing, gui)

Record Display Speech

Callbacks_record_display_speech_GUI25(f,C,start_path)

[B,BA,F,T]=create_spectrogram(y,nfft,fs,w,dyn_range,logLi...

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updated 1 month 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)

End-point Detector

Callbacks_endpoint_detector_GUI25(f,C,start_path)

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

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updated 1 month ago

ADPCM by Speech Processing

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

ADPCM

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

Callbacks_adpcm_GUI25(f,C,start_path)

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updated 1 month ago

Autocorrelation Pitch Detector by Speech Processing

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

Autocorrelation Pitch

Callbacks_ac_pitch_GUI25(f,C,start_path)

ac_pitch_GUI25

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updated 1 month 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)

Cepstrum Computation

Callbacks_compute_cepstrum_GUI25(f,C,start_path)

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

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updated 1 month ago

Statistical Analysis by Speech Processing

This exercise estimates the statistical properties of a speech signal, namely the PDF. (speech processing, gui)

Statistical Analysis

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

Callbacks_statistical_analysis_GUI25(f,C,start_path)

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updated 1 month ago

AGC by Speech Processing

This exercise designs an automatic gain control (AGC) system for speech companding. (speech processing, gui)

AGC

Callbacks_agc_GUI25(f,C,start_path)

agc_GUI25

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updated 2 months ago

SIFT Pitch Detector by Speech Processing

This exercise designs and implements a pitch period detector based on detecting and tracking peaks. (speech processing, gui)

Sift Pitch Detector

Callbacks_sift_pitch_GUI25(f,C,start_path)

[pd1i,pd2i,p1i,p2i]=pitch_detect_lpc_sift(x,fs,imf,L,R,fn...

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updated 2 months ago

VQ/VQ Cells by Speech Processing

This MATLAB exercise illustrates the cell formation properties of Vector Quantizers. (speech processing, gui)

VQ Cells

Callbacks_VQ_Cells_GUI25(f,C)

Callbacks_VQ_Cells_GUI25(f,C)

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updated 2 months ago

LPC Error Synthesis by Speech Processing

This MATLAB exercise performs LPC analysis and synthesis on a speech file. (speech processing, gui)

LPC Error Synthesis

Callbacks_lpc_error_syn_GUI25(f,C,start_path)

lpc_error_syn_GUI25

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updated 2 months ago

Zoom Strips Plot by Speech Processing

A simple way to visualize and understand speech waveforms by plotting and examination. (speech processing, gui)

Zoom Strips Plot

Callbacks_strips_plot_GUI25(f,C,start_path)

EditrunGui

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updated 2 months 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)

Window Comparisions

...

Callbacks_windows_GUI25(f,C)

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updated 2 months 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)

Vowel Synthesis

Callbacks_Vowel_Synthesis_GUI25(f,C)

Vowel_Synthesis_GUI25

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updated 2 months ago

lpc frame by Speech Processing

This exercise shows how the method of linear predictive coding (LPC) models a speech frame. (speech processing, gui)

lpc frame

Callbacks_lpc_frame_GUI25(f,C,start_path)

[f,h0,ha,hc,hl,U_log_STFT,U_log_LPC,U_log_LPC_co_la]=...

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updated 2 months ago

lpc varying L by Speech Processing

This exercise shows the matching behavior of the LPC polynomial log magnitude spectrum of the STFT. (speech processing, guide)

lpc varying L

Callbacks_lpc_varying_L_GUI25(f,C,start_path)

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

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updated 2 months ago

Overlap Add Windows by Speech Processing

This exercise verifies the windows sampling property is valid for a range of windows. (speech processing, gui)

Overlap Add Windows

Callbacks_overlap_add_GUI25(f,C)

[RG]=calc_RG(win,L,R);

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updated 3 months 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)

Spectral Magnitude

Callbacks_phase_magnitude_GUI25(f,C,start_path)

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

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updated 3 months 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)

NarrowbandWideBand

Callbacks_NB_WB_spectra_GUI25(f,C,start_path)

NB_WB_spectra_GUI25

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updated 3 months 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)

LPC Analysis with Varying Order

Callbacks_lpc_varying_p_GUI25(f,C,start_path)

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

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updated 3 months 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)

LPC Error Spectra for Speech Frames

Callbacks_lpc_error_GUI25(f,C,start_path)

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

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updated 3 months 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)

Cepstrum Aliasing

Callbacks_cepstrum_aliasing_GUI25(f,C,start_path)

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

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updated 3 months 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)

Cepstral Liftering

Callbacks_cepstral_liftering_GUI25(f,C,start_path)

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

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updated 3 months ago

Single Pole Cepstrum by Speech Processing

This exercise compares and contrasts three methods for computing the complex cepstrum of a signall. (speech processing, gui)

Single Pole Cepstrum

Callbacks_single_pole_cepstrum_GUI25(f,C)

[nseq,nplot,x,xhat1,xhat2,xhat3]=compute_single_pole_ceps...

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updated 3 months ago

AMDF by Speech Processing

This exercise computes the short-time average magnitude difference function (AMDF) of a speech frame (speech processing, gui)

AMDF

Callbacks_amdf_GUI25(f,C,start_path)

EditrunGui

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