Sound wav file matlab

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Load the example file gong. Audio data, specified as an m -by-1 column vector for single-channel mono audio, or an m -by-2 matrix for stereo playback, where m is the number of audio samples. If y is an m -by-2 matrix, then the first column corresponds to the left channel, and the second column corresponds to the right channel. Stereo playback is available only if your system supports it.

Sample rate, in hertz, of audio data y , is specified as a positive number from through Data Types: single double. Bit depth of the sample values, specified as an integer.

Valid values depend on the audio hardware installed. Most platforms support bit depths of 8 bits or 16 bits. To play an audio file in MatLab you use the sound function.

The following function plays the sound. If the Fs variable is not defined or included in the command, it will assume the default sample rate of Hz. To scale an audio file the soundsc command is used. To increase the volume of the audio track you can multiple the variable it is stored in by a scalar. To slow down or speed up the track played you can adjust the sampling rate. Comment on your observations using different values.

Now experiment with different bit values 1,2,.. Comment on your observations. The command to reverse the order of the samples in a matrix is flipud. Experiment with this command. Now for this part of the lab have fun with MatLab. Take your favorite music files and convert them to. Once you have a couple of your favorite audio files, you may need to crop the file. Investigate how colormaps work with image matrices of types uint8 and uint In addition to true color images and indexed images into a colormap, a third type of image is an intensity image, which is used frequently for grayscale images.

Investigate how to use the image scale function imagesc. The uibuttongroup function is used specifically to group together buttons; other objects can be grouped together similarly using the uipanel function. Your email address will not be published. Investigate how this works.