osq 24-bit: too quiet audio output

[ami_stuff]

./ffmpeg -i 24_bit_fixed.osq -y out.wav
ffmpeg version N-111893-gbef151d1ce Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 11 (Ubuntu 11.4.0-1ubuntu1~22.04)
  configuration: 
  libavutil      58. 19.100 / 58. 19.100
  libavcodec     60. 25.100 / 60. 25.100
  libavformat    60. 11.100 / 60. 11.100
  libavdevice    60.  2.101 / 60.  2.101
  libavfilter     9. 11.100 /  9. 11.100
  libswscale      7.  3.100 /  7.  3.100
  libswresample   4. 11.100 /  4. 11.100
[aist#0:0/osq @ 0x5629c1890400] Guessed Channel Layout: stereo
Input #0, osq, from '24_bit_fixed.osq':
  Duration: 00:00:06.76, start: 0.000000, bitrate: 860 kb/s
  Stream #0:0: Audio: osq, 48000 Hz, 2 channels, s32p
Stream mapping:
  Stream #0:0 -> #0:0 (osq (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, wav, to 'out.wav':
  Metadata:
    ISFT            : Lavf60.11.100
  Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 2 channels, s16, 1536 kb/s
    Metadata:
      encoder         : Lavc60.25.100 pcm_s16le
[out#0/wav @ 0x5629c188cb40] video:0kB audio:1267kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.006014%
size=    1267kB time=00:00:06.75 bitrate=1537.4kbits/s speed= 250x