demorse by Aaron

Translates morse code in a wav file to text (morse, morse code, audio)

demorse(filename)

Super Mario Bros. Demo by Mingjing Zhang

A playable demo of Super Mario Bros. World 1-1 with background music (game, gui, animation)

Super Mario Bros. Demo

stl_mario_main()

sol-fa to sound by X iffus

Convert plain text sol-fa to WAVE or MIDI sequence or convert note data in MIDI sequence to sol-fa (solfa, music, sound)

checkmode(varargin)

milah33(varargin)

mimport(varargin)

Waveform Generator GUI by Maxim Vedenyov

Generate waveformed signal and play it. Interactive GUI with movable datapoints. (waveform, gui, signal processing)

Waveform Generator GUI

bdf(ha,hfl,uf)

hfl=create_marker(ha,x,y,r,c,uf,no)

Real-Time Audio Processor by Tucker McClure

Simplifies streaming or generating audio in real time. (audio, realtime, synthesis)

midi_interface_builder()

sine_of_the_times(times, in, state_in)

HandlePlayer

Recaptcha audio recognition, 1-4 July 2012 by Maxim Vedenyov

Explaned how audio recaptcha was recognized. Time domain method. (dsp, sound, recaptcha)

[op sg sws]=find_optimums(s,dz,no)

op=find_maximums(s,dz,no)

test189_recognize3_many.m

tplay.m: artefact-free audio presentation despite Windows 7 by Trevor Agus

Like 'sound' or 'wavplay', but uses ASIO for glitch-free sound presentation. (sound, audio, wavplay)

pagenumberout=tplay(wave,fs,waitflag,asioname)

tplayclean

tplayinterrupt

audioread - unified audio file input function by Dan Ellis

audioread provides a single, unified function for reading audio files in wav, mp3, aac, flac... (mp4, aac, data import)

audioread(FN, TARGETSR, FORCEMONO, START, DUR)

audiowrite(D,SR,FN)

flacread(FILE,N,MONO,DOWNSAMP,DELAY)

Sound Pressure Level Calculator by Chad Greene

Function calculates sound pressure level in decibels, given a pressure signal in pascals. (acoustics, sound pressure level, spl)

spl(p_Pa,ref)

Continuous Sound and Vibration Analysis by Edward Zechmann

This program analyzes sound and vibrations data using metrics for continuous noise and vibrations. (sound, noise, whole body)

ACdsgn(Fs)

ArgStruct=parseArgs(args,ArgStruct,varargin)

[ ha_chan2, ha_axes2, ha_accels2, num_ha_accels2]=config_ha...

Nth_Oct_Hand_Arm_&_AC_Filter_Tool_Box by Edward Zechmann

Features Nth octave band, Hand Arm, and A and C weighting filters (noise, nth octave, octave)

ACdsgn(Fs)

Test_Nth_oct_filters1(resample_filter)

[A2, A_str, real_digitsL, real_digitsR, imag_digitsL, imag_...

Waveform Generator GUI 2 by Maxim Vedenyov

Generate waveformed signal and play it. Interactive GUI with movable datapoints. (awg, waveform, dsp)

[a b]=calulate_harmonics(nh,T,x,y,cs,sn)

add_to_buffer(src,eventdata,Fs,ao,po,pso,ic)

open_device(po,Fs,ic,nblocks,margin)

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)

play Feigenbaum by Felipe

Simple script to play a chaotic system like the logistic map (chaos, feigenbaum, logistic map)

playFeigenbaum

Nintendo game&watch Egg - EG 26 simulator by Maxim Vedenyov

Game a and game b simulated, with sound (nintendo, gamewatch, egg)

keyfig(src,evnt)

ns=score2simultanious(score,game_type)

orv_new=no_repeat(orv)

Live audio stream analyser and voice coach by Steve Lawrence

A program that uses 'analoginput' to create a live audio stream, which is analyzed in real-time. (singing, coach, signal processing)

liveon.m

Guitar Tuner Demo from MATLAB Expo 2011 in Tokyo by Teja Muppirala

This takes audio input and calculates the frequency for use in tuning a guitar (guitar, tuner, data aqcuisition)

guitartuner

m4aread - read MPEG4 (AAC or M4A) compressed audio files by Dan Ellis

m4aread reads m4a or aac compressed audio files just like wavread reads uncompressed audio files (mp4, mpeg, data import)

m4aread(FILE,N,MONO,DOWNSAMP,DELAY)

wavread_downsamp(F,N,M,DS)

demo_m4aread.m

speech drum machine by Maxim Vedenyov

record your sounds and play it in sequenser to get music. (drum machine, microphone, sound)

load_clb

pl

rec(yc)

Calibrated Spectral Analysis by Edward Zechmann

Simple Fourier Spectral Analysis of sound pressure time record. (spectral analysis, sound, sound pressure)

ACdsgn(Fs)

ArgStruct=parseArgs(args,ArgStruct,varargin)

[Fsn, p, q, errors]=get_p_q2(Fs, Fsu, Fsl)

Windows System Sounds by Drew Weymouth

Play any Windows system sound from within MATLAB. (microsoft, windows, system)

systemsound(string)

Hiding image in sound (im2sound) by Stephen

Converts an image into a sound file. Played through a spectrum analyser, the image is revealed. (hiding, communications, sound)

im2sound(filename, ext, f_sample, f_low, ...

text2speech - tts by Wolfgang Garn

Converts text to speech. (sapi, text2speech, tts)

Speak

initSpeech

text2speech

MATLAB sound - code example by Steven Kolak

MATLAB sound code example - acquiring audio data into MATLAB (audio processing, sound matlab audio ac..., video processing)

sound_acquisition.m

AKUZOFT ACOUSTIC SOFTWARE by Marco Araos

zip file with: Akuzoft archives Manual Akuzoft (acoustic, acoustic panels, sound)

Akuzoft(varargin)

CES.m

CEXT.m

Time-frequency Automatic Gain Control (AGC) by Dan Ellis

Automatic Gain Control (AGC) attempts to maintain a constant energy level for an audio signal. (sound, audio, automatic gain contro...)

fft2melmx(nfft, sr, nfilts, width, minfrq, maxfrq, htkmel, ...

istft(d, ftsize, w, h)

stft(x, f, w, h, sr)

jAudio: Buffered Sound Class by Kesh Ikuma

A java-based MATLAB class for buffered sound playback (sound, java, gui)

jaudio_demo(varargin)

jaudio

Fly a 747 with MATLAB: Shaky Camera Effect, Sound Effect by Saurabh Mahapatra

Special effects added algorithmically (simulink, 3d, animation)

terrain_plane.m

Simple acoustic horn design for amplification by Edward Zechmann

Simple acoustic horn designs for exponential and catenoidal horns. (horn, acoustic, noise)

DXF_end(fid)

DXF_line(fid,x,y,x1,y1,linecolour,linetype)

DXF_lint(fid,linetype)

audioplayer wrapper by Viliam Sabol

Wrapper for the audioplayer matlab object that supports loop play and volume change. (sound, loop, audioplayer)

sndplayer(cmd, varargin)

Vuvuzela sound denoising algorithm by Choqueuse Vincent

This script implements a sound denoising algorithm in Matlab for vuvuzela sound cancelation. (denoising, time frequency, boll)

vuvuzela_denoising.m

Pianosound in matlab by Kristofer

Single or multiple pianokeys sound at the same time. (piano, pianokeys, sound)

tunes2pianosound(m)

Speech Snipper by Alan Tan

This is a GUI that manages DSP analysis functions for wav-files (e.g., speech signals). (analysis, signal processing, dsp)

pitchwatch(x,Ts)

plotps(x,Ts,N)

spect(x,Ts,wn,N)

mp3read and mp3write by Dan Ellis

Improved reading and writing of mp3 files (audio file, mp3, mp3read)

MP3 reading and writing

mp3read(FILE,N,MONO,DOWNSAMP,DELAY)

mp3write(D,SR,NBITS,FILE,OPTIONS)

Air Absorption by Edward Zechmann

Calculates sound absorption (attenuation) in humid air (sound, air, noise)

[alpha, alpha_iso, c, c_iso]=air_absorption(f, T, hr, ps)

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)

Stitch by Mark Hayworth

Stiches or averages two image files or two sound files into a single file. (image processing, sound, utility)

Stitch(varargin)

Robust Landmark-Based Audio Fingerprinting by Dan Ellis

A landmark-based Shazam-like audio fingerprinting system. (audio, fingerprint, sound)

add_tracks(D,SR,ID)

clear_hashtable()

find_landmarks(D,SR)

SoundVolume - set or get the system speaker sound volume by Yair Altman

SoundVolume sets or gets the computer system's speaker sound volume, using Java (sound, java)

SoundVolume(volume)

Multi sounds recorder by berenger

Very basic application to record sounds from microphone and split sounds using the silence (signal processing, microphone, sound)

testgui(varargin)

play_sound by Phillip M. Feldman

play_sound loads and plays the specified sound file. (beep, chimes, sound file)

play_sound(id)

Gammatone-based (auditory) spectrograms by Dan Ellis

Calculates a spectrogram-like time-frequency intensity matrix based on Gammatone filters. (spectrogram, gammatone, auditory)

ERBFilterBank(x, fcoefs)

ERBSpace(lowFreq, highFreq, N)

fcoefs=MakeERBFilters(fs,numChannels,lowFreq)

demorse by Marc

Converts audio of morse code into English text. (sound, morse, utilities)

demorse(wavfile);

Matlab Piano by Mark Frankosky

A matlab Piano GUI (keyboard, piano, music)

piano2(varargin)

Gong by John Gooden

produces a nice gong sound to replace 'beep' (sound, beep, gong)

gong(vol,frq,dur)

Tiny FDTD v1.0 by Nick Clark

Minimal acoustics simulation in 1, 2 or 3D (fdtd, 3d, 2d)

Tiny_FDTD_v1.m

SafeSnd - A safer version of sound() by Earl Vickers

This scales back the sound playback level, in case your audio algorithm blows up. (audio processing, video processing, sound)

safesnd(x, fs)

Mosquito tone generator by Rob Slazas

Manipulates a sine function and plays it as .wav audio. (mosquito ringtone ton..., sound)

mosquito(Freq,Dur,Amp,stereo,taper)

Play Wave File by Laine Berhane Kahsay

Creates a visual interface to fully or selectively play a portion of a wave file. (sound, mouse, wavread)

mouseclickext(h)

playsound(h, type)

pw(fn)

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, ...