20240055009. APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL AND METHOD OF OPERATION THEREOF simplified abstract (ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE)
APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL AND METHOD OF OPERATION THEREOF
Organization Name
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Inventor(s)
Seung Kwon Beack of Daejeon (KR)
APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL AND METHOD OF OPERATION THEREOF - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240055009 titled 'APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL AND METHOD OF OPERATION THEREOF
Simplified Explanation
The patent application describes an apparatus and method for encoding an audio signal. Here is a simplified explanation of the abstract:
- The method involves analyzing and quantizing an input audio signal using linear predictive coding (LPC) to obtain quantized linear prediction (LP) coefficients.
- A reference signal is generated by applying discrete Fourier transform (DFT) to the input audio signal.
- LP residual coefficients are obtained from the reference signal.
- The magnitudes of the LP residual coefficients are scaled using the quantized LP coefficients and the reference signal.
- The phases of the LP residual coefficients and the scaled magnitudes are quantized.
Potential applications of this technology:
- Audio compression: The encoding method can be used in audio compression algorithms to reduce the size of audio files without significant loss of quality.
- Voice communication: The technology can be applied in voice communication systems, such as VoIP, to efficiently transmit audio signals over networks with limited bandwidth.
- Streaming services: The encoding method can be used in streaming services to optimize the transmission of audio content over the internet.
Problems solved by this technology:
- Efficient audio encoding: The method solves the problem of efficiently encoding audio signals by using LPC analysis and quantization techniques.
- Bandwidth optimization: By scaling the magnitudes of the LP residual coefficients, the method helps optimize the use of available bandwidth for audio transmission.
Benefits of this technology:
- Improved audio quality: The encoding method preserves the quality of the audio signal by accurately quantizing LP coefficients and scaling LP residual coefficients.
- Reduced file size: By quantizing and scaling the LP coefficients and residual coefficients, the method helps reduce the size of audio files, making them easier to store and transmit.
- Bandwidth efficiency: The technology optimizes the use of available bandwidth, allowing for efficient transmission of audio signals over networks.
Original Abstract Submitted
provided are an apparatus for encoding an audio signal and a method of an operation thereof. an audio signal encoding method includes obtaining quantized linear prediction (lp) coefficients by performing a linear predictive coding (lpc) analysis and quantization on an input audio signal, generating a reference signal by applying discrete fourier transform (dft) to the input audio signal, obtaining lp residual coefficients from the reference signal, scaling magnitudes of the lp residual coefficients using the quantized lp coefficients and the reference signal, and quantizing phases of the lp residual coefficients and the scaled magnitudes of the lp residual coefficients.
