MATLAB VIDEO AND IMAGE PROCESSING BLOCKSET 3 Guida Utente Pagina 74

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2 Importing and Exporting Video
Theframeperiodoftheaudiosignalmustmatchtheframeperiodofthe
video signals, which is 0.0333 seconds per frame. Since the frame period
is also defined as the frame size divided by frequency, you can calculate
the frame period of the audio signal by dividing the frame size of the
audio signal (735 samples per frame) by the frequency (22050 samples
per se cond) to get 0.0333 seconds per frame. Alternatively, you can verify
that the frame period of the audio and video signals is the same using a
Simulink Probe block.
5 Use th
eToMultimediaFiletooutputtheaudioandvideosignalstoasingle
mult
imedia file. Accept the default parameters.
2-34
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