Dialogue Enhancements Techniques
AssigneeLG Electronics Inc.
InventorsHyen-O Oh, Yang-Won Jung
Life of this patent
Estimating the term…
Abstract
A plural-channel audio signal (e.g., a stereo audio) is processed to modify a gain (e.g., a volume level or loudness) of an estimated dialogue signal (e.g., dialogue spoken by actors in a movie) relative to other signals (e.g., reflected or reverberated sound). In some aspects, a classifier is used to classify component signals in the plural-channel audio signal or the estimated dialogue signal. In some aspects, a desired volume level for the dialogue signal is maintained relative to the plural-channel audio signal or other component signals.
Claims25
A method comprising:
- obtaining a first plural-channel audio signal;
- obtaining a desired gain;
- if the first plural-channel audio signal includes a center channel signal,
- modifying a current gain of the center channel signal according to the desired gain;
- if the first plural-channel audio signal does not include a center channel signal,
- estimating a virtual center channel signal;
- and
- applying a gain to the virtual center channel signal according to the desired gain.
An apparatus comprising:
- at least one interface configurable for obtaining a first plural-channel audio signal and a desired gain;
- and
- a processor coupled to the interface and configurable for estimating a virtual center channel signal and applying a gain to the virtual center channel signal according to the desired gain.
A computer-readable medium having instructions stored thereon which, when executed by a processor, causes the processor to perform operations comprising:
- obtaining a first plural-channel audio signal;
- obtaining input specifying a desired gain;
- if the first plural-channel audio signal includes a center channel signal,
- modifying a current gain of the center channel signal according to the desired gain;
- if the first plural-channel audio signal does not include a center channel signal,
- estimating a virtual center channel signal;
- and
- applying a gain to the virtual center channel signal according to the desired gain.
A system comprising:
- means for obtaining a plural-channel audio signal;
- means for obtaining input specifying a desired gain;
- if the plural-channel audio signal includes a center channel signal,
- means for modifying gain of the center channel signal according to the desired gain;
- if the plural-channel audio signal does not include a center channel signal,
- means for estimating a virtual center channel signal;
- and
- means for modifying gain of the virtual center channel signal according to the desired gain.
Dependencies are inferred from the claim text.