Orange HD Voice provides clearer calls by cutting out background noise. They say its the biggest revolution in phone calls for 20 years. It should be particularly useful to radio stations, improving the quality of remote interviews, and providing an invaluable service to those working in noisy environments.
How does it work?
HD Voice uses Adaptive Multi Rate Wideband (ARM-WB). Currently only a small part of your voice is transmitted on a normal mobile call. HD promises to use a lot more of your speech. Instead of transmitting the whole waveform, intelligent algorithms look for consecutive sections of speech that are similar, then, if two sections are alike, the redundant information is stripped out, allowing the signal to be compressed.
When can I get it?
HD Voice has been out in Germany for a while and is now available throughout the UK on the Orange network. It's free on HD Voice enabled handsets that sport the HD Voice logo (above). Nokia and Samsung have been the first to launch, with the Nokia 5230, X6 and E5, and the Samsung Omnia Pro - ok so not many yet, but more will launch soon.
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