US Patent Application 18032533. SOUND SIGNAL REFINEMENT METHOD, SOUND SIGNAL DECODE METHOD, APPARATUS THEREOF, PROGRAM, AND STORAGE MEDIUM simplified abstract
SOUND SIGNAL REFINEMENT METHOD, SOUND SIGNAL DECODE METHOD, APPARATUS THEREOF, PROGRAM, AND STORAGE MEDIUM
Organization Name
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor(s)
SOUND SIGNAL REFINEMENT METHOD, SOUND SIGNAL DECODE METHOD, APPARATUS THEREOF, PROGRAM, AND STORAGE MEDIUM - A simplified explanation of the abstract
This abstract first appeared for US patent application 18032533 titled 'SOUND SIGNAL REFINEMENT METHOD, SOUND SIGNAL DECODE METHOD, APPARATUS THEREOF, PROGRAM, AND STORAGE MEDIUM
Simplified Explanation
- The technology described in the patent application improves the quality of a decoded sound signal obtained from a different code than the original code of the sound signal. - The decoded sound signal is derived from the same sound signal, but the different code introduces some distortion or noise. - A decoded sound common signal is created by combining the decoded sound signals from each channel and then subjected to signal purification using a monaural decoded sound signal. - The signal purification process generates a purified common signal, which is then subtracted from the decoded sound signal in each channel. - The purified common signal is then added to the subtracted decoded sound signal, resulting in a purified decoded sound signal. - This technology aims to enhance the quality of decoded sound signals by reducing the impact of distortion or noise introduced by a different code.
Original Abstract Submitted
There is provided a technology that improves, in a case where there is a sound signal obtained from a different code that is different from a code from which a decoded sound signal is obtained and that is derived from the same sound signal, the decoded sound signal by using the sound signal obtained from the different code. A signal (hereinafter, referred to as a decoded sound common signal) obtained by downmixing a decoded sound signal of each channel is subjected to signal purification using a monaural decoded sound signal to thereby generate a purified common signal, and in each channel, the decoded sound common signal is subtracted from the decoded sound signal and the purified common signal is added thereto, to thereby generate a purified decoded sound signal.
