Audio Agent Sound Field Control via Wavefront Composition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing audio-based agent systems face challenges in effectively processing and controlling audio outputs to prevent mixing with other audio content, leading to difficulties in localizing sound images and maintaining user interaction without interfering with other audio sources.
Innovation Solution
An information processing device and method that acquires audio information from an agent device and other content sources, using sound field control processing to isolate and localize audio outputs through wavefront composition, ensuring distinct audio experiences for users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If audio output from multiple sources is played simultaneously, then the system provides comprehensive information to the user, but the audio outputs mix together causing interference and making it difficult to distinguish agent audio from other content
Solution Approach 1:
The patent segments the audio output space by creating distinct sound fields for different audio sources. The sound field control unit divides the physical space into multiple regions, assigning each audio source (agent device and other content) to a specific spatial zone. This spatial segmentation allows simultaneous playback without mixing, as each source occupies its own acoustic region.
Solution Approach 2:
The patent transitions from two-dimensional audio mixing (stereo left-right channels) to three-dimensional sound field control by utilizing vertical and depth dimensions. Through wavefront composition and phase control, the system creates spatially separated audio zones in 3D space, allowing multiple audio sources to coexist without interference by positioning them at different spatial coordinates.
2Loss of information
If sound field control processing is applied to separate audio sources, then audio clarity and localization are improved, but the device complexity and processing requirements increase
Solution Approach 1:
The patent introduces a sound field control unit as an intermediary component between the audio sources and the speakers. This intermediary processes the audio signals and coordinates the output across multiple speakers to create the desired sound field. By centralizing the control function, the system manages complexity through a dedicated control module rather than requiring complex modifications to each audio source.
Solution Approach 2:
The patent manipulates acoustic parameters such as phase, amplitude, and timing of audio signals to achieve sound field separation. By adjusting these parameters dynamically, the system creates distinct acoustic zones without requiring physical separation of speakers or audio sources. This parameter-based control achieves the desired effect while maintaining a relatively simple hardware configuration.
3Measurement precision
If wavefront composition is used to localize sound images, then audio positioning accuracy is improved, but the computational load and processing time increase
Solution Approach 1:
The patent performs preliminary calculations of speaker timing and phase relationships before audio playback. The sound field control unit pre-computes the required signal adjustments for each speaker based on the desired sound field configuration. This preliminary action allows the system to quickly switch between different audio sources and positions without performing complex real-time calculations during playback, thus reducing processing time.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables clear and localized audio experiences for users, preventing interference between agent audio and other content, thereby enhancing user interaction and audio clarity in multi-source environments.
Implementation Method 1
the controller performs wavefront composition of pieces of audio output from a plurality of speakers, controls a sound field of the agent device
Data Source
AI summary
Provided is an information processing device that processes a dialogue of an audio agent.The information processing device includes an acquisition unit that acquires audio information of an agent device that is played back through interaction with a user and audio information of other contents different from the audio information of the agent device, and a controller that performs sound field control processing on an audio output signal based on the audio information of the agent device acquired by the acquisition unit. The controller performs wavefront composition of pieces of audio output from a plurality of speakers, controls a sound field of the agent device, and avoids mixing with the other contents different from the audio information of the agent device.