Importin 32-bit wav from an old Cool Edit version

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Importin 32-bit wav from an old Cool Edit version

Permanent link to this post Posted by u2t4c6s8n » Tue Jan 09, 2018 9:36 pm

Hi, I would like to import a wave file made with an old version of Cool Edit. Audacity correctly reads 16-bit files, but this doesn't happen if they are 32-bit. I tried to import it as "Raw data" but it's useless. Here are some details about the file:

Code: Select all
File : /mnt/sda1/test.wav
Lenght : 49833056
RIFF : 49833056
WAVE
fmt  : 16
  Format        : 0x1 => WAVE_FORMAT_PCM
  Channels      : 1
  Sample Rate   : 44100
  Block Align   : 4
  Bit Width     : 32
  Bytes/sec     : 176400
data : 49833012
End

----------------------------------------
Sample Rate : 44100
Frames      : 12458253
Channels    : 1
Format      : 0x00010004
Sections    : 1
Seekable    : TRUE
Duration    : 00:04:42.500
Signal Max  : 1.18216e+09 (-5.19 dB)


I also tried with other programs, without success. However I am sure that the files are not corrupted. What can I do?
u2t4c6s8n
 
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Re: Importin 32-bit wav from an old Cool Edit version

Permanent link to this post Posted by steve » Wed Jan 10, 2018 9:33 am

u2t4c6s8n wrote:I am sure that the files are not corrupted

Why are you sure?

How big is the file? (looks like it should be 49833056 bytes - approx 49 MB)
What's the smallest file that you have with this problem? Would you be able to make it available for testing via dropbox or similar?
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)
steve
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Re: Importin 32-bit wav from an old Cool Edit version

Permanent link to this post Posted by u2t4c6s8n » Wed Jan 10, 2018 11:02 am

Solved! The problem consists in the coding used by Cool Edit for the 32-bit which must be 16.8 float (type 1). It was sufficient to update ffmpeg (3.3 or later. I tried on Linux). In particular, you need to use the codec pcm_f16le for the input. But you must manually normalize the waveshape because otherwise it appears flat. Thanks anyway ;)
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