Registered
APPARATUS AND METHOD FOR ENCODING AND DECODING OF INTEGRATED SPEECH AND AUDIO
- Inventors
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Lee Tae Jin, 박호종, 박영철, Kang Kyeongok, Beack Seung Kwon, Minje Kim, Jang Dae Young, Hong Jin Woo, Jeongil Seo
- Application No.
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14605006 (2015.01.26)
- Publication No.
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20150154974 (2015.06.04)
- Registration No.
- 9711159 (2017.07.18)
- Country
- UNITED STATES
- Project Code
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08MR4800, Development of Next-Generation DTV Core Technology,
Chieteuk Ahn
- Abstract
- An apparatus and a method for integrally encoding and decoding a speech signal and a audio signal. The encoding apparatus may include: an input signal analyzer to analyze a characteristic of an input signal; a first conversion encoder to convert the input signal to a frequency domain signal, and to encode the input signal when the input signal is a audio characteristic signal; a Linear Predictive Coding (LPC) encoder to perform LPC encoding of the input signal when the input signal is a speech characteristic signal; a frequency band expander with the spectral band replication (SBR) standard for expanding the frequency band of the input signal whose output is transmitted to either the first conversion encoder or the LPC encoder based on the input characteristic; and a bitstream generator to generate a bitstream using an output signal of the first conversion encoder and an output signal of the LPC encoder.
- KSP Keywords
- Audio signal, Characteristic signal, Encoding and decoding, Frequency domain(FD), Predictive Coding, Spectral Band Replication(SBR), Speech Signals, frequency band, frequency domain signal, input signal, linear predictive coding, signal analyzer
- Family
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