Audio Mixing Device Priority Gain Control
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Solution Overview
Problem
Existing audio mixing devices face challenges in ensuring timely and prioritized output of multiple audio streams, leading to potential delays in urgent audio information, which can hinder user treatment and experience.
Innovation Solution
An audio mixing device with a gain setting circuit that sets individual gains for multiple audio streams based on external commands and a mixing circuit that mixes these streams, allowing for prioritization and efficient output without delay, using a configuration that includes a communication interface, decoder, mixing circuit, gain setting circuit, and audio amplifier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If audio information is processed sequentially to ensure proper timing, then timing accuracy is improved, but output delay occurs for urgent audio streams
Solution Approach 1:
The patent implements dynamic gain adjustment based on priority levels. The gain setting circuit dynamically changes the gain values of different audio streams according to their priority, allowing high-priority audio to be amplified more strongly. This dynamic adjustment enables the system to maintain timing accuracy for critical audio while reducing overall output delay by giving precedence to urgent streams through gain modulation rather than strict sequential processing.
Solution Approach 2:
The patent changes the gain parameter of audio signals based on their priority classification. By adjusting the gain values as a key parameter, the system can differentiate between high-priority and low-priority audio streams. This parameter change allows simultaneous processing of multiple audio streams with different timing requirements, resolving the contradiction between timing accuracy and output delay by making timing flexibility through gain control.
2Productivity
If multiple audio streams are processed simultaneously, then productivity is improved, but audio quality and distinction deteriorate
Solution Approach 1:
The patent applies local quality by assigning different gain values to different audio streams based on their priority levels. Instead of treating all audio streams uniformly, the system provides customized gain adjustment for each stream. This allows high-priority audio to maintain high quality and distinguishability while low-priority audio receives appropriate but reduced gain. The local quality approach enables simultaneous processing of multiple streams with different quality requirements, resolving the contradiction between productivity and audio quality.
3Ease of operation
If gain adjustment is implemented for priority management, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent introduces a gain setting circuit as an intermediary component between the audio input and the mixing circuit. This intermediary circuit handles the priority management function by adjusting gain values based on priority information. The gain setting circuit acts as a mediator that translates priority decisions into appropriate gain adjustments, simplifying the overall control mechanism. By using this intermediary, the system achieves easy priority control without significantly increasing device complexity, as the gain adjustment function is integrated into a dedicated circuit module.
Data Source
AI summary
An audio mixing device includes: a gain setting circuit configured to set first to n-th gains based on a command input from the outside, n being an integer of 2 or more; and a mixing circuit configured to output a mixing signal obtained by mixing two or more of first to n-th multiplication data obtained by respectively multiplying first to n-th audio data by the first to n-th gains.