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The presence of background noise degrades the quality of speech signal. The speech quality of the VoIP system can be improved by reducing the background noise, codec distortion and various network impairments such as packet loss, delay and jitter. The work in this paper proposes the Interpolated Finite Impulse Response filter (IFIR) based scheme for reduction of noise. The IFIR filter would be applied...
In voice over internet protocol (VoIP) system, the speech signal is degraded when passed through the network layers. The speech signal is processed through best effort policy based IP network, which include delay, packet loss and jitter network problems. The quality of VoIP speech signal can be improved by filtering the degraded VoIP speech signal through multirate filters. The work in this paper...
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