Perhaps the best software available for examining speech is the PRAAT freeware developed by Paul Boersma and David Weenink at the University of Amsterdam. (Also available from here.) You can now download version 5.1.26. This programme was used extensively in Halliday and Greaves' Intonation in the Grammar of English. If that isn't a top rate recommendation, I do not know what is.
•spectral analysis (spectrograms)
•jitter, shimmer, voice breaks
•from pitch, formant, and intensity
Labelling and segmentation:
•label intervals and time points on multiple tiers
•use phonetic alphabet
•use sound files up to 2 gigabytes (3 hours)
•change pitch and duration contours
•principal component analysis
and much, much more.
What else can it do? Take a look at the screenshot:
The question should be: What can't it do?
I expect Paul and David would love to hear it if you have further challenges for them.