ffmpeg version N-68881-ga79ac73 Copyright (c) 2000-2015 the FFmpeg developers
  built on Jan  5 2015 22:02:22 with gcc 4.9.2 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
  libavutil      54. 16.100 / 54. 16.100
  libavcodec     56. 19.100 / 56. 19.100
  libavformat    56. 18.100 / 56. 18.100
  libavdevice    56.  3.100 / 56.  3.100
  libavfilter     5.  6.100 /  5.  6.100
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  3.100 / 53.  3.100
Guessed Channel Layout for  Input Stream #0.0 : stereo
Input #0, wav, from 'Unknown Artist - Unknown Title.wav':
  Duration: 00:46:45.85, bitrate: 1411 kb/s
    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels, s16, 1411 kb/s
Output #0, flac, to 'Unknown Artist - Unknown Title.flac':
  Metadata:
    encoder         : Lavf56.18.100
    Stream #0:0: Audio: flac, 44100 Hz, stereo, s16, 128 kb/s
    Metadata:
      encoder         : Lavc56.19.100 flac
Stream mapping:
  Stream #0:0 -> #0:0 (pcm_s16le (native) -> flac (native))
Press [q] to stop, [?] for help
size=   12580kB time=00:01:57.96 bitrate= 873.6kbits/s    
size=   24733kB time=00:03:50.29 bitrate= 879.8kbits/s    
size=   36448kB time=00:05:37.29 bitrate= 885.2kbits/s    
size=   50006kB time=00:07:30.35 bitrate= 909.6kbits/s    
size=   63396kB time=00:09:29.26 bitrate= 912.3kbits/s    
size=   77728kB time=00:11:31.30 bitrate= 921.1kbits/s    
size=   90761kB time=00:13:23.52 bitrate= 925.3kbits/s    
size=  104819kB time=00:15:24.00 bitrate= 929.3kbits/s    
size=  116366kB time=00:17:10.37 bitrate= 925.2kbits/s    
size=  129577kB time=00:19:03.32 bitrate= 928.4kbits/s    
size=  143230kB time=00:21:06.62 bitrate= 926.4kbits/s    
size=  156519kB time=00:22:55.71 bitrate= 932.0kbits/s    
size=  169339kB time=00:24:48.03 bitrate= 932.2kbits/s    
size=  182597kB time=00:26:44.23 bitrate= 932.4kbits/s    
size=  195509kB time=00:28:27.78 bitrate= 937.8kbits/s    
size=  209197kB time=00:30:25.33 bitrate= 938.9kbits/s    
size=  223447kB time=00:32:26.64 bitrate= 940.3kbits/s    
size=  235346kB time=00:34:13.43 bitrate= 938.9kbits/s    
size=  249781kB time=00:36:14.64 bitrate= 940.9kbits/s    
size=  263839kB time=00:38:16.99 bitrate= 941.0kbits/s    
size=  276583kB time=00:40:03.99 bitrate= 942.5kbits/s    
size=  289524kB time=00:42:07.19 bitrate= 938.5kbits/s    
size=  302158kB time=00:44:02.44 bitrate= 936.7kbits/s    
size=  315782kB time=00:45:56.12 bitrate= 938.6kbits/s    
size=  320459kB time=00:46:45.85 bitrate= 935.6kbits/s    
video:0kB audio:320451kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.002526%