Notes: The phoneme /w/ starts very low, only F1 being visible below 500 Hz. F2 and F3 show up weakly and belatedly; /w/ looks much like an /r/ except that F3 is usually above 2000 Hz (though weak.)
A typical /w/ may look like:
Speaker: Tim Carmell
Word: the /w/ section of the word "lowest"
Speaker: Tim Carmell
Word: the /w/ section of the word "went"
References:
Course Materials
Spectral Cues Front Page