To minimize the 'clipping' effect caused by frame loss, some of the more advanced VoFR FRADs employ a lost speech interpolation
technique that blends speech samples that precede and follow the lost frame(s) to mask the lost speech elements.
Employing a combination of Digital Speech Interpolation
(DSI), Low Delay Code Excited Linear Prediction (LDCELP), Variable Bit Rate (VBR) and Fax Demodulation techniques, ECI Telecom's DTX-360 system is well suited to meet the requirements of any service provider.
Benefits of the Vanguard VoiceRelay solution include the following: high- quality voice through proven compression technology, reduction or elimination of costs for voice-only lines on the public switched telephone network, use of Digital Speech Interpolation
(DSI) to minimize wasted bandwidth, built-in echo cancellation for improved voice quality without the need for expensive add- ons, and integrated fax/voice on the same port.
E-TDMA uses speech interpolation
, a technique that packetizes speech and assigns users and RF channel only when information (i.
The GMH 2000R advanced digital cellular system employs the E-TDMA transmission scheme and digital speech interpolation
(DSI) techniques to increase both capacity and quality while decreasing cost.