SPEEX HURT MY EARSSSSSSSSSSSSSSSSSSSs
Yeah, that true

The first time use Speex give me a very bad experience
QUOTE
D:\>speexenc -u -V --vbr --quality 9 1.wav 1.spx
Warning: Speex is only optimized for 8, 16 and 32 kHz. It will still work at 441
00 Hz but your mileage may vary
Encoding 44100 Hz audio using ultra-wideband (sub-band CELP) mode (stereo)
Bitrate is use: 17914 bps (average 35809 bps)
use Winamp Plug-ins from link @ speex.org
When it play in Winamp, it product very anoying noise along with music, my hear is hurt (yeah, that's true...it's very anoying @ high frequency and high pitch,and I got headache

)
Don't know this is a bug of enc or decode

sample
http://members.shaw.ca/annefrank/1.spx

/edit
frequence ,not bitrate