Low Bit-Rate Parametric Coding

Authors

  • Djadjat Sudaradjat Universitas Bina Sarana Informatika
  • Andi Rosano Universitas Bina Sarana Informatika

DOI:

https://doi.org/10.31294/paradigma.v24i2.1391

Keywords:

LPC, Speech Processing, Speech Compression

Abstract

With a low bit rate will be obtained savings in the use of bandwidth transmission channels and memory. In coding the human voice signal, an artificial voice-producing model is made to obtain a low bit rate, which is known as the parametric coding method. With the parametric coding method, the human voice signal can produce a lower bit rate than the waveform coding method. For example, the waveform coding method will be limited by a minimum sampling frequency which according to the Shannon-Nyquist theorem states that so that no information is lost when sampling the signal, the sampling speed must be at least twice the bandwidth of the signal. Thus, the lowest bit rate waveform encoding that can be achieved is by the Delta Modulation system which is 8 Kbit/sec. While the signal parametric coding can achieve a lower bit rate of 2.4 Kbit/sec by the LPC (Linear Predictive Coding) system.

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Published

2022-09-02

How to Cite

Sudaradjat, D., & Rosano, A. (2022). Low Bit-Rate Parametric Coding. Paradigma - Jurnal Komputer Dan Informatika, 24(2), 125-129. https://doi.org/10.31294/paradigma.v24i2.1391

Issue

Vol. 24 No. 2 (2022): September 2022 Period

Section

Articles

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Copyright (c) 2022 Djadjat Sudaradjat, Andi Rosano

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