Working

ffmpeg -i hcihbchgdb138.wmv -acodec mp3 -ar 22050 -ac 1 -ab 32 -f flv -qscale 10 -vol 350 -aspect 4:3 -s 400x300 -b 200 hcihbchgdb138.flv
FFmpeg version SVN-r8408, Copyright (c) 2000-2007 Fabrice Bellard, et al.
  configuration: --prefix=/usr --incdir=/usr/include/ffmpeg --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/share/man --arch=i386 --extra-cflags=-O2 --enable-libmp3lame --enable-libogg --enable-libtheora --enable-libvorbis --enable-libfaad --enable-libfaac --enable-libgsm --enable-xvid --enable-x264 --enable-liba52 --enable-liba52bin --enable-libdts --disable-static --enable-shared --enable-gpl --disable-debug --disable-opts --disable-strip --enable-amr-wb --enable-amr-nb --enable-amr-if2 --enable-pthreads
  libavutil version: 49.3.0
  libavcodec version: 51.39.0
  libavformat version: 51.11.0
  built on Mar 16 2007 16:12:49, gcc: 4.1.1 20070105 (Red Hat 4.1.1-51)

Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 30.00 (30/1)
Input #0, asf, from 'hcihbchgdb138.wmv':
  Duration: 00:00:10.7, start: 3.000000, bitrate: 243 kb/s
  Stream #0.0: Audio: wmav2, 32000 Hz, stereo, 32 kb/s
  Stream #0.1: Video: wmv1, yuv420p, 320x240, 30.00 fps(r)
File 'hcihbchgdb138.flv' already exists. Overwrite ? [y/N] y
Output #0, flv, to 'hcihbchgdb138.flv':
  Stream #0.0: Video: flv, yuv420p, 400x300, q=2-31, 0 kb/s, 30.00 fps(c)
  Stream #0.1: Audio: mp3, 22050 Hz, mono, 0 kb/s
Stream mapping:
  Stream #0.1 -> #0.0
  Stream #0.0 -> #0.1
Press [q] to stop encoding
frame=  321 q=10.0 Lsize=     469kB time=10.7 bitrate= 359.4kbits/s    
video:415kB audio:43kB global headers:0kB muxing overhead 2.577754%