Speech Processing Toolbox by Ankitkumar Chheda

Speech Processing Operation like FADE-IN, FADE-OUT, COMPRESSION AND AMPLIFICATION (fade in, fade out, amplification)

GUI_exp4_new(varargin)

Record, Plot Speech/Audio Signal by Ankitkumar Chheda

This tool will help students to learn recording of audio / speech signal (audio, igetfile, speech)

exp1_GUI(varargin)

Speech recognition using MFCC and LPC by Neeraj

This program implements a basic speech recognition for 6 symbols using MFCC and LPC (mfcc, lpc, speech)

SpeechAud.m

SpeechMain.m

SpeechTest.m

Dynamic Low, High and Band pass filter by Gaurav Gupta

An application to dynamically filter signal (sound) with interactive drag of mouse (filter, sound, signal)

filter_GG(varargin)

Noise tracking algorithm for single-microphone speech signals by Jan Erkelens

Implements a data-driven noise tracking algorithm suitable for nonstationary noise sources. (speech enhancement, noise tracking, noise spectrum estima...)

Amatrix=createDFTAmatrix(X,H);

GenerateTraindata

[G_D2,MSE]=GenerateGD2Table(numiter,N,alphaNT,G_D2init,Rang...

Phase Spectrum Compensation by Kamil Wojcicki

Phase Spectrum Compensation (PSC) framework for speech enhancement. (phase spectrum compen..., psc, speech enhancement)

myspectrogram(s, fs, T, w, nfft, Slim, alpha, cmap, cbar, t...

psc( s, fs, Tw, Ts, stype, lambda )

pesq.m

speech oscilloscope by Maxim Vedenyov

Synchronized continuous display of waveform of your speech from microphone. (speech recognition, microphose, oscilloscope)

hpcb

lpcb

pau

Speech Spectrogram by Kamil Wojcicki

High quality speech spectrogram plot generation routine (spectrogram, image, power spectrum)

myspectrogram(s, fs, T, w, nfft, Slim, alpha, cmap, cbar, t...

test_myspectrogram.m

Time-domain scrambling of audio signals by Dan Ellis

Scramble audio signals by shuffling short-time windows (signal processing, audio, speech)

ERBFilterBank(x, fcoefs)

ERBSpace(lowFreq, highFreq, N)

fcoefs=MakeERBFilters(fs,numChannels,lowFreq,width)

Silence removal in speech signals by Theodoros Giannakopoulos

A simple method for silence removal in speech streams (audio, speech, speech analysis)

ShortTimeEnergy(signal, windowLength,step);

SpectralCentroid(signal,windowLength, step, fs)

detectVoiced(wavFileName,t)

Matlab Play Wave File GUI by Albert Tan

Able to Play, Pause, Resume and Stop a Wave sound from continue playing. (audio, gui, wav pause)

testplay(varargin)

Time-scale/pitch modification by Yang Lu

Simple implementation of [1] with small modification. (speech audio signal p..., audio, speech)

pitch_modification(filename, semitone)

tsm_using_stftm(filename, scale)

Toolbox for log-spectral magnitude MMSE estimators under super-Gaussian densities by Richard Hendriks

Toolbox for log-spectral magnitude MMSE estimators under super-Gaussian densities. (signal processing, speech, noise reduction)

[G1]=TabulateGainGamma2logmmse(Rprior,Rpost,nu);

[gains]=lookup_gain_in_table(G,a_post,a_priori,a_post_range...

hg=ConflHyperGeomFun(a,b,x);

Toolbox for MMSE estimators of DFT coefficients under the generalized Gamma density by Richard Hendriks

Estimators of complex-DFT, magnitude-DFT and magnitude squared-DFT coefficients for noise reduction. (signal processing, speech, speech enhancement)

[G1,G2]=TabulateGainGamma1(Rprior,Rpost,nu,K);

[G1,G2]=TabulateGainGamma2(Rprior,Rpost,nu);

[G]=TabulateGenGam1dft(Rksi,Rgam,nu,K);

Isolated Words Speech Recognition by J. TRAN TAT

Basic program to recognize a word based on the analysis of its energy. (recognition, analysis, speech)

reco.m

voc.m

MATLAB Audio Database Toolbox by Kobi Nis

MatlabADT enables easy access and filtering of audio databases such as TIMIT by their metadata. (timit, yoho, speech)

ADT( dbName ,init_dir,flags)

gendb( name )

PlotSpectrogram by Peter Kabal

This program plots spectrograms (intensities versus frequencies, plotted against time). (spectrogram, speech)

PlotSpectrogram (x, varargin)

SpecColorMap (m, Colors)

tPlotSpectrogram

Articulation Index by Ikaro Silva

Estimates the articulation index (speech intelligibility) (audio processing, video processing, articulation)

[AI,W,f]=artind(V,R,Be,type)

example1.m

example2.m

Simple Audio Editor by Navan Ruthramoorthy

This is a simple audio editor GUI to read, write, cut, copy, paste, filter and analyze audio data. (audio processing, editor, audio)

RecordFromMic

getFromMATLABVarNameandFs

getToMATLABVarNameandFs

Audio Filter GUI DEMO by Theodoros Giannakopoulos

This demo provides a simple GUI for basic filtering of audio data. (audio, speech, sound)

GUI_FILTER(varargin)

generateBandPassFilter(Fpass1, Fstop1, Fpass2, Fstop2, Fs, ...

generateBandStopFilter(Fpass1, Fstop1, Fpass2, Fstop2, Fs, ...

Brown Acoustic Simulator by Avram Levi

Creates a source to microphone impulse response in complex room enviroments (audio processing, video processing, acoustic)

[coor, ref_mat]=parse_mirimage(ROOMFILENAME,sourceloc,miclo...

direct_resp(pos, az_talker, el_talker, attn_high_res)

freq_dep_3d_headattenuation(az_angle_rad, el_angle_rad,can_...

Speech Coding Using Sub-Bands by Farhat Masood

Speech Coding Using Sub-Bands (coding, band, speech)

noble.m

sbc1.m

Audio Noise Suppressor by Ali Behboodian

Suppression of Acoustic Noise in Speech (noise suppressor, noise canceller, noise)

noise_suppressor

Make MATLAB Talk by Sam Roberts

Make MATLAB Talk (activex, interfacing, talk)

say(myString,voiceName)

say_old(myString)

saydemo.m

DEVICE CONTROL USING SPEECH by ANKIT MEHTA

Device are controlled with speech using parallel port. (mfcc, audio processing, speech)

test_project

n-PSK modulation and demodulation by Santosh Shah

keep all files in a folder and run any of the test my speech file, with any value of n, in power of (npsk, speech, psk)

my_bi2de(b, msbflag)

my_de2bi(d, msbflag, n)

my_pskdemod(y , m)

M-QAM modulation and demodulation by Santosh Shah

this is the QAM modulation and demodulation tech. with speech example (mqam, qam, santosh shah)

my_bi2de(b, msbflag)

my_de2bi(d, msbflag, n)

my_qamdemod(y, m)

MATLAB and Simulink in the World: Academia by Linda Webb

Academic institutions demonstrate applications of MathWorks tools across engineering disciplines. (whitepaper, article, paper)

Speech compression using Linear Predictive Coding by Hamza Kadir

A lossy speech compression algorithm. (audio processing, compression, linear predictive cod...)

f_DECODER (aCoeff, pitch_plot, voiced, gain);

f_ENCODER(x, fs, M);

f_GAIN (e, voiced_b, pitch_plot_b); %gain of 1 (current) fr...

Subband adpcm by Jinbo Li

These algorithm are based on the G722 standard.. (audio processing, video processing, subband)

[dlti,bli]=upzero(dlt,dlti,bli)

[il,ih,tqmf,rlt1,rlt2,al1,al2,ah1,ah2,plt1,plt2,ph1,ph2,rh1...

[xout1,xout2,accumc,accumd,dec_del_dltx,dec_del_bpl,dec_del...

Formant Tracker by NARSIMH KAMATH

Format_Tracker.m tracks the formant frequencies of input speech waveform, based on LPC analysis. (formant tracking, audio processing, speech)

formant_tracker.m

Speech Analysis using LPC by Tan Chin Luh

A GUI for Speech Analysis using LPC (audio processing, lpc, fft)

simplelpcgui(varargin)

Theme from Super Mario Brothers Song by James Humes

plays the Super Mario Brothers theme song. (audio, please help mei cant ..., video)

tone=note(keynum, dur)

mariosong.m

Berouti Spectral Subtraction by Esfandiar Zavarehei

Spectral Subtraction method proposed by berouti for enhancement of noisy speech. (speech, enhancement, spectral subtraction)

output=SSBerouti79(signal,fs,IS)

speak by Fahad Al Mahmood

This function uses Excel to speak entered texts or numbers. (sound, speak, read)

speak(varargin)

MATLAB Record GUI by Jesse Hansen

MATLAB Record GUI: Used to record, edit, and analyze speech or other sounds. (speech, matlab gui, audio)

record(op)