Huazhong
University of Science and Technology
Visual
Sound Instrument (Version 3.2)
Signal Menu
a). Read
Open signal from a windows WAV sound file.
.
b).Save
Save signal to a windows WAV sound file,
or a text data file.
.
c).Recording
Control a 16bit sound card to record a
signal.
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c).Recording
Parameters
Set recording parameters, as shown below.
Sample frequency usualy is 8000/11025/22050/44100/..
Sample length is time of 1024, 1024/2048/.../204000.
..
c).Signal
Generator
Control a inner signal generator to produce digital
signal.
.
d)Generate Parameters
Set inner signal generator parameters.
Signal type include:.
Sine
wave
White noise
Square wave
Trigon wave
Saw wave
Pulse signal
Beat wave
Par1=Amplitude,
Par2=Frequency, Par3=Phase
.
e)Playing
Playing signal
from sound card.
.
f)Playing Parameters
Set playing
parameters, as shown below.
.
g)Exit
Exit the program.
.
[Return]
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2004.1.10