Performance Assessment of Simulink Based Speech Radio Band Extension Technique on Elderly People

The main drawback of conventional communication networks is the limitation of the frequency band. Proper speech frequency for telecommunication systems spans from 3 to 3.4 Khz and is popularly known as In-Band (IB). The IB does have a significant impact on communication apprehension and interpretation. It has a more significant impact on senior adults over 60. The Telephony Speech Spectrum Enhancement (TSSE) Technique, when used in conjunction with the IB speech signal, tries to improve the IB speech signal's performance and perception by transmitting erroneous audio frequency information as additional data. On The receiver end, these omitted voice spectral characteristics sent as extra data help build an improved Wide Band (WB) signal. This work simultaneously builds the transmitter and the receiver with Simulink and investigates the potential of TSSE to boost the perception of telephonic conversation among older adults. During this investigation, the effectiveness of the TSSE approach is analysed by contrasting it with a Conventional Telephony Signal Enhancement Technique (CTSET). Subjective as well as quantitative tests analysed and validate the improved performance in the grade and perception of IB signal for the older adult population.