[fluid-dev] RIFF header not found; fluidsynth2

[Matt Wallis]

There seems to be a difference between the WAV files created by 
fluidsynth1 and fluisdynth2. Specifically, I'm getting an error when I 
try to play a fluidsynth2 WAV file. This is on Ubuntu 18.04

   $ fluidsynth  -F AScore.wav /usr/share/sounds/sf2/FluidR3_GM.sf2
   AScore.midi
   FluidSynth runtime version 2.0.8
   Copyright (C) 2000-2019 Peter Hanappe and others.
   Distributed under the LGPL license.
   SoundFont(R) is a registered trademark of E-mu Systems, Inc.

   Rendering audio to file 'AScore.wav'..
   $ play AScore.wav
   play FAIL formats: can't open input file `AScore.wav': WAVE: RIFF
   header not found


whereas SoX's play command will play the equivalent WAV created by 
fluidsynth1:

   $ /usr/bin/fluidsynth  -F AScore.wav
   /usr/share/sounds/sf2/FluidR3_GM.sf2  AScore.midi
   FluidSynth version 1.1.9
   Copyright (C) 2000-2018 Peter Hanappe and others.
   Distributed under the LGPL license.
   SoundFont(R) is a registered trademark of E-mu Systems, Inc.

   Rendering audio to file 'AScore.wav'..
   matt@ocinara:~/Music/Matt/NightRideHome$ play AScore.wav

   AScore.wav:

     File Size: 3.53M     Bit Rate: 1.41M
      Encoding: Signed PCM
      Channels: 2 @ 16-bit
   Samplerate: 44100Hz
   ... etc ...



SoX seems to complain about 'RIFF header not found'. If this is 
genuinely something that 's missing from the fluidsynth2 WAV, is there a 
way to put it back? Or is the problem with SoX?

BTW:

   $ play --version
   play:      SoX v14.4.2