Enhanced Speech-Processing Software

Enhanced Speech-Processing Software
New speech-processing algorithms provide for diversity, which means that an entire speech segment is
not lost when a single packet is lost. Diversity is achieved by reorganizing the representation of the
speech signal. Diversity does not add redundancy or send the same information twice. Ergo, it is
bandwidth efficient and ensures that packet losses lead to a gradual and imperceptible degradation of
voice quality. The tradeoff is that diversity leads to increased delays. Enhanced speech-processing
software includes advanced signal processing to dynamically minimize delay. Therefore, the overall delay
is maintained at approximately the same level as it would be without diversity. Furthermore, the basic
quality (no packet loss) is equivalent to or better than PSTN (using G.711).
Enhanced speech-processing software is built to enhance existing standards used in IP telephony. This
software enables high speech quality on a loaded network with jitter, high packet losses, and delays.
Cost savings are realized using enhanced speech-processing software, as no need exists to
overprovision network infrastructure. The high packet loss tolerance also reduces the need for and
subsequent cost of network supervision, resulting in further cost savings.