these are the sounds found in most native Latvian dialects:
there are also sounds not on the chart

Other sounds:
long counterparts of all vowels
/f/ and back open-mid rounded vowel in loan words
/w/ as allophone of /v/ in coda consonant clusters
palatalized counterparts of /b/, /p/, /m/, /v/
palatalized trill in archaic words and certain dialects

(from: Nau, N. 1998. Latvian. Muenchen: Lincom Europa.)