View source for 18033297. SOUND SIGNAL HIGH FREQUENCY COMPENSATION METHOD, SOUND SIGNAL POST PROCESSING METHOD, SOUND SIGNAL DECODE METHOD, APPARATUS THEREOF, PROGRAM, AND STORAGE MEDIUM simplified abstract (Nippon Telegraph and Telephone Corporation)

=SOUND SIGNAL HIGH FREQUENCY COMPENSATION METHOD, SOUND SIGNAL POST PROCESSING METHOD, SOUND SIGNAL DECODE METHOD, APPARATUS THEREOF, PROGRAM, AND STORAGE MEDIUM=


==Organization Name==

[[:Category:Nippon Telegraph and Telephone Corporation|Nippon Telegraph and Telephone Corporation]]


[[Category:Nippon Telegraph and Telephone Corporation]]

==Inventor(s)==

[[:Category:Ryosuke Sugiura of Tokyo (JP)|Ryosuke Sugiura of Tokyo (JP)]][[Category:Ryosuke Sugiura of Tokyo (JP)]]

[[:Category:Takehiro Moriya of Tokyo (JP)|Takehiro Moriya of Tokyo (JP)]][[Category:Takehiro Moriya of Tokyo (JP)]]

[[:Category:Yutaka Kamamoto of Tokyo (JP)|Yutaka Kamamoto of Tokyo (JP)]][[Category:Yutaka Kamamoto of Tokyo (JP)]]

==SOUND SIGNAL HIGH FREQUENCY COMPENSATION METHOD, SOUND SIGNAL POST PROCESSING 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 18033297 titled 'SOUND SIGNAL HIGH FREQUENCY COMPENSATION METHOD, SOUND SIGNAL POST PROCESSING METHOD, SOUND SIGNAL DECODE METHOD, APPARATUS THEREOF, PROGRAM, AND STORAGE MEDIUM

==Simplified Explanation==

The patent application describes a method for compensating high-frequency energy in decoded sound signals. The method involves signal processing in the time domain to obtain a purified decoded sound signal for each channel of stereo audio. 

* The method compensates for high-frequency energy in the decoded sound signals.
* It involves signal processing in the time domain.
* The method works on each channel of stereo audio.
* A high-frequency compensation gain is calculated for each frame and channel.
* The method adds the original decoded sound signal with a high-frequency component of a monaural decoded sound signal.
* The monaural decoded sound signal is obtained by decoding a different code from the stereo code or by upmixing.
* The resulting compensated decoded sound signal is output for each channel.

== Potential Applications ==
* Audio processing and enhancement in stereo systems.
* Improving the quality of decoded sound signals in multimedia applications.
* Enhancing the audio experience in virtual reality or augmented reality environments.

== Problems Solved ==
* Compensating for high-frequency energy differences in decoded sound signals.
* Improving the fidelity and clarity of audio playback.
* Addressing the limitations of stereo decoding and monaural decoding in audio systems.

== Benefits ==
* Enhanced audio quality with balanced high-frequency energy.
* Improved accuracy in reproducing the original audio content.
* Better immersion and realism in multimedia and virtual reality experiences.


==Original Abstract Submitted==

For each frame, an n-th channel compensated decoded sound signal X′is obtained that is a signal obtained by compensating a high frequency of an n-th channel purified decoded sound signal Xobtained by performing signal processing in a time domain on an n-th channel decoded sound signal Xthat is a decoded sound signal of each channel of stereo obtained by decoding a stereo code CS. At this time, for the each frame with respect to the each channel, an n-th channel high-frequency compensation gain ρthat is a value for bringing high-frequency energy of X′close to high-frequency energy of Xis obtained, and for the each frame with respect to the each channel, a signal obtained by adding Xand a signal obtained by multiplying a high-frequency component of a monaural decoded sound signal that is obtained by decoding a monaural code CM that is a code different from the stereo code CS or a signal obtained by upmixing, for the each channel, the monaural decoded sound signal by the n-th channel high-frequency compensation gain ρis obtained and output as the n-th channel compensated decoded sound signal X′.



[[Category:G10L21/0324]]
[[Category:G10L19/008]]