Sigma Sound Studios
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Sigma Sound Sounds was an American music recording studio located in Philadelphia, Pennsylvania. Sigma Sound Studios was founded by Joseph Tarsia in 1968. It was the second studio in the country to offer 24-track recording and the first in the country to use console automation.[1]
In the 1970s Sigma Sound Studios was associated with Philadelphia soul and the sound of Gamble and Huff's Philadelphia International records, a precursor to disco music.
Tarsia sold Sigma Sound Studios in 2003.