Editing Time-assignment speech interpolation (section)

{{Short description|Technique to increase capacity of analog phone cables}}

In [[telecommunications]], a '''time-assignment speech interpolation''' ('''TASI''') was an analog technique used on certain long [[transmission (telecommunications)|transmission]] links to increase voice transmission capacity.

TASI was invented by [[Bell Labs]] in the early 1960s to increase the capacity of [[transatlantic telephone cable]]s.  It was one of their first applications requiring [[Electronic switching system|electronic switching]] of voice circuits.

Later [[digital circuit multiplication equipment]] included TASI as a feature, not as distinct hardware.