The Speed of Sound is a 1988 all-instrumental album by American rock guitarist Ronnie Montrose, who led the bands Montrose (1973-77 & 1987) and Gamma (1979-83 & 2000) and also performed and did session work with a variety of musicians, including Van Morrison (1971–72), Herbie Hancock (1971), Beaver & Krause (1971), Boz Scaggs (1971), Edgar Winter (1972 & 1996), Gary Wright (1975), The Beau Brummels (1975), Dan Hartman (1976), Tony Williams (1978), The Neville Brothers (1987), Marc Bonilla (1991 & 1993), Sammy Hagar (1997), and Johnny Winter. In 1997, Ronnie stated that this album was his favorite instrumental record he had done so far. The track titles are words and phrases referencing aviation themes.