In speech or audio processing, coding may be define as a digital representation of signal
that provides efficient storage, transmission, recovery, and perceptually faithful …

This paper proposes a scheme of transmitting or storing a wideband audio stream in a
channel or storage medium which is narrowband in nature and with a low resolution data …

An average1. 6kb/s low bit and variable rate speech coder based on local cosine transform
(LCT) algorithm for a two-way conversational speech is designed for the first time in the …

This paper proposes a Wideband-CELP-Coding scheme (bandwidth 7kHz) at 24 kbit/s. The
codec introduces a delay of just 10 ms. This fulfills the requirements of a possible codec …

We present a technique to extend narrowband (NB) speech communication systems, using
eg the GSM enhanced full rate (EFR) codec, with wideband (WB, 50-7000 Hz) capability …

We propose a new transform speech codec that jointly encodes a wideband waveform and
its corresponding wideband and narrowband speech recognition features. For distributed …

In this paper we present a wideband (44.1 kHz sampling rate) audio and speech coder that
combines two different strategies, namely, parametric and waveform coding. It is shown how …

In this paper, an encoding technique called Hi-BIN (High Band Injection), which can be
combined with any narrowband coder to achieve good quality wideband speech, is …

Wireless telephone speech is usually limited to the 300-3400 Hz band, which reduces its
quality. There is thus a growing demand for wideband speech systems that transmit from 50 …

Wideband speech coding has been gaining popularity in recent years. Due to its higher
sampling rate, wideband speech inherently requires higher processing power than …