i am trying to record a sound(audio signal) and it keeps giving me error's on get audiodata, can you help me identify the problem?

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codefanta
codefanta 2019-1-15
评论： Star Strider 2019-1-15
x = (10000, 1);
x(1 : 2000: 10000) = 1;
sound(x)
plot(x);
a = audiorecorder(10000, 8, 1);
record(a, 5);
sound(x)
b = getaudiodata(a, 8)
sound(b);
plot(b)
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codefanta
codefanta 2019-1-15
error using audiorecorder/getaudiodata (line 722)
unsupported data type
thats the exact error message, hopefully its helpful
codefanta
codefanta 2019-1-15
hello
Sorry i should be been more clear before.
The aim is to create 5 audio signals, play the signals and the record the sound so i can analyse the data later
hopefully this clears things

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Star Strider
Star Strider 2019-1-15
If you want to specify that ‘a’ is an int8 data type, try this:
b = getaudiodata(a, 'int8')
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codefanta
codefanta 2019-1-15
I still get an error, however I plotted my results and the code works!
Would it be play (b, '8bit' or 'double') ? i am very confused
Star Strider
Star Strider 2019-1-15
Great!
What is the error?
Also, posting the code you are currently using would help.
‘Would it be play (b, '8bit' or 'double') ?’
It would most likely default to whatever the data type is in ‘a’. You may not need to specify the data type.
It also depends on the function you use. See the documentation section on Play Audio (link) for an extended discussion. It gives examples for both the sound function and the audioplayer play function.

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