You can find audio files of some of Foucault’s lectures posted on UbuWeb. See Stuart Elden’s blog Progressive Geographies for some corrections on the details listed on Ubuweb
Truth & Subjectivity: Howison Lectures, UC Berkeley (1980, English)
4 lectures
The Culture Of The Self, Berkley Lectures (1983)
3 Lectures
These lectures by Foucault held at U.C. Berkeley on April 12th & 19th, 1983 April, was one of his last major public appearances in the United States. The three tracks are 40-60 minutes long.
L’herméneutique Du Sujet, Le Courage De La Vérité (1980s)
Foucault was recorded by students during the seminar and then the audio file was rebroadcast by Radio France.
11 lectures from Michel Foucault (1966, French)
Contestation du reel
Decoupages singuliers du temps
Juxtaposition d’espaces incompatibles
Le corps et ses resources propres
Le corps, acteur principal …
Les contre espaces
Les utopies qui effacent le corps
L’héterotopologie
Mon corps est …ailleurs
Mon corps, utopie impitoyable
Systemes d’ouverture
Foucault News 
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