Hello Antoine,
Le 24/04/2015 16:31, Antoine Monmayrant a écrit :
Hi everyone,
I'm trying to use Scilab to generate a soundwave with a given
frequency and output it continuously.
Basically, I'd like to get a simple "software-based" function
generator: a slider to set the frequency and the sound being played
continuously in the background.
Is this possible in Scilab?
I'm fine with the gui & callback part, but for sound output 'playsnd'
and 'sound' do not seem to be able to loop over a given sample without
any gap.
Any suggestion or alternative software I could use?
If you are successful in installing Python 2.7 and NumPy, you may try
using the PIMS module and execute the following code with pyEvalStr(..):
import audiere
d = audiere.open_device()
t = d.create_tone(17000) # 17 KHz
t.play() # non-blocking call
import time
time.sleep(5)
t.stop()
This Python's code is taken from
http://stackoverflow.com/questions/974071/python-library-for-playing-fixed-frequency-sound#answers-header
May i guess (i do not know Python's language) that the time.sleep(..)
instruction may be dropped in order to get a continuous sound, lasting
as long as t.stop() is not called. It can be called only after other
Scilab instructions and callbacks and so on.
For my part, i did not succeed in installing NumPy on my win7_x64 (The
well installed Python 2.7 is not detected by NumPy installer). PIMS is
well loaded, but then i get an error when executing the pyEvalStr()
example.
Have nice trials
Regards
Samuel
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