[Octave-bug-tracker] [bug #56889] Incorrect encoding results from uint8 vector to wav file

[anonyme]

URL:
  <https://savannah.gnu.org/bugs/?56889>

                 Summary: Incorrect encoding results from uint8 vector to wav
file
                 Project: GNU Octave
            Submitted by: None
            Submitted on: sam. 14 sept. 2019 11:42:37 UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: imad
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 5.1.0
        Operating System: Microsoft Windows

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Details:


%%
% test audio write function for uint8 vector
Fs=8000;
f="test.wav";
y=[];
for k=1:32
  y(k)=256-k;
endfor
audiowrite(f,uint8(y),Fs,'BitsPerSample',8);
audioread(f,'native')
-verbatom-


the original vector y is transformed to uint8 data type then encoded in wav
file.
the encoded results do not match 
Note:
 The same code works as expected in MATLAB.




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