View source for 18032792. SOUND SIGNAL REFINING METHOD, SOUND SIGNAL DECODING METHOD, APPARATUS THEREOF, PROGRAM, AND STORAGE MEDIUM simplified abstract (Nippon Telegraph and Telephone Corporation)

=SOUND SIGNAL REFINING METHOD, SOUND SIGNAL DECODING 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 REFINING METHOD, SOUND SIGNAL DECODING METHOD, APPARATUS THEREOF, PROGRAM, AND STORAGE MEDIUM - A simplified explanation of the abstract==


This abstract first appeared for US patent application 18032792 titled 'SOUND SIGNAL REFINING METHOD, SOUND SIGNAL DECODING METHOD, APPARATUS THEREOF, PROGRAM, AND STORAGE MEDIUM

==Simplified Explanation==

A sound signal purification method is described in this patent application. The method involves two steps: 

1. Monaural decoded sound upmixing: This step upmixes a monaural decoded sound signal for each channel using inter-channel relationship information. It generates an n-th channel upmixed monaural decoded sound signal.

2. N-th channel signal purification: This step purifies the n-th channel upmixed monaural decoded sound signal by combining it with the n-th channel decoded sound signal. The purification weight α determines the contribution of each signal in the final sequence.

* The method involves upmixing a monaural decoded sound signal for each channel using inter-channel relationship information.
* It purifies the upmixed signal by combining it with the original decoded sound signal for each channel.
* The purification weight α determines the contribution of each signal in the final sequence.

Potential applications of this technology:

* Audio signal processing in stereo systems or audio devices.
* Enhancing the quality of monaural sound signals by upmixing and purifying them.
* Improving the audio experience in virtual reality or augmented reality applications.

Problems solved by this technology:

* Improves the quality of monaural sound signals by utilizing inter-channel relationship information.
* Enhances the audio experience by upmixing and purifying sound signals.
* Provides a method for purifying sound signals in a simple and efficient manner.

Benefits of this technology:

* Improved audio quality and clarity.
* Enhanced spatial audio experience.
* Simplified sound signal purification process.
* Compatibility with various audio devices and systems.


==Original Abstract Submitted==

A sound signal purification method includes a monaural decoded sound upmixing step of obtaining, an n-th channel upmixed monaural decoded sound signal {circumflex over ( )}Xthat is a signal obtained by upmixing a monaural decoded sound signal {circumflex over ( )}Xfor each channel by an upmixing process using the monaural decoded sound signal {circumflex over ( )}Xand inter-channel relationship information that is information indicating a relationship between channels of stereo, and an n-th channel signal purification step of obtaining a sequence based on a value {tilde over ( )}x(t) obtained by adding a value α×{circumflex over ( )}x(t) obtained by multiplying an n-th channel purification weight αby a sample value {circumflex over ( )}x(t) of the n-th channel upmixed monaural decoded sound signal {circumflex over ( )}Xand a value obtained by multiplying a value (1−α) obtained by subtracting the n-th channel purification weight αfrom 1 by a sample value {circumflex over ( )}x(t) of the n-th channel decoded sound signal {circumflex over ( )}X.



[[Category:G10L19/008]]
[[Category:G10L25/06]]
[[Category:G10L25/21]]