Why certain .wav files cannot be decoded in Firefox

Question

I have a web page which decodes wave files for certain reasons. Chrome and Safari seem to work fine. Firefox occasionally is unable to decode the file and gives the error:

Answer 1

It might be the JUNK chunk at the start of the file. You can run it through sox to clean out extraneous chunks like this:

sox Malice_Bass.wav Malice_Bass_simple.wav

Here's what my personal parser says about the file:

RIFF - WAVE (36467192 bytes)
   JUNK (92)
   bext (602)
         Description:       
         Originator:        Pro Tools
         Originator Ref:    jicj!dad1ofaaaGk
         Origination Date:  2014-09-09
         Origination Time:  20:46:43
         Time Ref Low:      0
         Time Ref High:     0
         BWF Version:       0
         SMPTE UMID Bytes:  0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
         Coding History:    
   fmt (40)
         Format Tag:        1
         Channels:          2
         Samples per sec:   48000
         Avg bytes per sec: 192000
         Block align:       4
         Bits per sample:   16
   minf (16)
   elm1 (214)
   data (36466048)
   regn (92)
   umid (24)

When I clean it up using sox Firefox quits complaining about it but still doesn't play it. I confirmed that it loads the file but doesn't seem to play it.