18665661. SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM STORING SIGNAL PROCESSING PROGRAM simplified abstract (Panasonic Intellectual Property Corporation of America)
SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM STORING SIGNAL PROCESSING PROGRAM
Organization Name
Panasonic Intellectual Property Corporation of America
Inventor(s)
Shinichi Yuzuriha of Osaka (JP)
SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM STORING SIGNAL PROCESSING PROGRAM - A simplified explanation of the abstract
This abstract first appeared for US patent application 18665661 titled 'SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM STORING SIGNAL PROCESSING PROGRAM
The patent application describes a signal processing device that can separate mixed acoustic signals into individual components.
- Mixed feature amount conversion part converts mixed acoustic signals into mixed feature amounts.
- Mask estimation part estimates masks based on the mixed feature amount.
- Acoustic signal conversion part separates feature amounts using masks into individual acoustic signals.
- Environment acoustic signal extraction part isolates environment acoustic signals from the mixed acoustic signal.
- Environment sound feature amount conversion part converts environment acoustic signals into feature amounts.
Potential Applications: - Audio processing in noisy environments - Speech enhancement in crowded spaces - Music production for isolating instruments in a mix
Problems Solved: - Separating multiple sound sources in a mixed signal - Enhancing specific audio components in a noisy background
Benefits: - Improved audio quality in challenging environments - Enhanced speech intelligibility in crowded areas - Better control over individual audio elements in a mix
Commercial Applications: Title: Advanced Audio Signal Processing Device for Noise Reduction This technology can be used in: - Audio recording studios - Conference call systems - Public address systems
Questions about the technology: 1. How does the device differentiate between different acoustic signals in a mixed environment? - The device uses masks to separate the feature amounts of individual signals. 2. What is the advantage of converting acoustic signals into feature amounts? - Converting signals into feature amounts allows for easier manipulation and separation of audio components.
Original Abstract Submitted
A signal processing device includes: a mixed feature amount conversion part that converts a mixed acoustic signal including a plurality of acoustic signals into a mixed feature amount; a mask estimation part that estimates a plurality of masks based on the mixed feature amount; an acoustic signal conversion part that converts a plurality of separated feature amounts calculated using the plurality of masks into a plurality of separated acoustic signals; an environment acoustic signal extraction part that extracts, as an environment acoustic signal, the mixed acoustic signal in the environment sound section estimated based on the plurality of separated acoustic signals from the mixed acoustic signal; and an environment sound feature amount conversion part that converts the environment acoustic signal into an environment sound feature amount. The mask estimation part estimates the plurality of masks based on the mixed feature amount weighted using the environment sound feature amount.
