Corrance has worked on The X-Factor, Never Mind the Buzzcocks, Father Ted, Grumpy Old Men and The Big Fat Quiz of the Year.
He was nominated for an RTS award for his work on Pop Idol in 2001.
Envy, the Broadcast post house of the year, has also added a new HD Pro Control 5.1 sound studio to its Margaret Street site and installed two new Avid Symphonies at Rathbone Place.
The latter will be operational by mid-May and used for light entertainment projects.
Envy appointed Wendy Bleazard as its head of PR and marketing last month (March).