Speech Technology Magazine

 

Sepura NCT's Selects Clearspeech Technology for Tetra Handsets

Sepura has licensed Cambridge technology company, NCT's ClearSpeech noise reduction technology for integration into their TETRA hand-held radios.
Posted Jul 1, 2005
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Sepura has licensed Cambridge technology company, NCT's ClearSpeech noise reduction technology for integration into their TETRA hand-held radios.  Sepura is an independent TETRA terminal supplier. Its handsets are used worldwide by the emergency services and the military, as well as transport and utility companies.

ClearSpeech is a suite of software algorithms that provide noise cancellation for human listeners, noise cancellation for voice recognition, echo cancellation and signal conditioning.

"ClearSpeech technology is ideal for our radios. By removing background noise we are able to ensure that users get the clearest speech possible even in the noisiest of environments" said Malcolm Quelch, development director for Sepura.  "This is obviously of utmost importance for the emergency service sectors where clear communications is critical."

Sepura has licensed NCT's Adaptive Speech Filter algorithm, a component within the ClearSpeech suite of products. The Adaptive Speech Filter (ASF) is a patented algorithm designed to filter noise from signals containing both speech and noise.

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