[Octave-bug-tracker] [bug #34078] fix for wavread.m, handle also incomplete samples for 24 bits per sample

[Hannes Müller]

URL:
  <http://savannah.gnu.org/bugs/?34078>

                 Summary: fix for wavread.m, handle also incomplete samples
for 24 bits per sample
                 Project: GNU Octave
            Submitted by: hmueller
            Submitted on: Sa 20 Aug 2011 09:22:23 GMT
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: Hannes Müller
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

wavread.m assumes the data size of a *.wav file is a multiple of the bytes
used per sample. In fact there are *.wav files were this assumption does not
hold. The last sample may be incomplete (ref. attached file test.wav from a
sound level meter).
Therefore, with such *.wav files the reshape operation in current wavread.m
fails.
Matlab, audacity, sndfile library and a number of other audio applications
does not show any failure or warnings with theses files.
That is why I propose to fix wavread.m accordingly, see attached patch.

PS: I propose to check also all other divisions if non-integer results are
correctly handled.



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File Attachments:


-------------------------------------------------------
Date: Sa 20 Aug 2011 09:22:23 GMT  Name: wavread.m.patch  Size: 652B   By:
hmueller

<http://savannah.gnu.org/bugs/download.php?file_id=23839>

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