Sound Processing System for Immersive Acoustic Simulation
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Solution Overview
Problem
Existing sound processing systems for electronic musical instruments lack the capability to provide a rich, immersive effect sound experience, as they primarily rely on limited effect processing that does not simulate the reverberation and localization of sound found in real acoustic spaces.
Innovation Solution
A sound processing system comprising an electronic musical instrument and a sound processing apparatus that communicate to perform dual-stage effect processing, where the instrument generates a direct sound component and the apparatus adds a reverb component, simulating the reverberation of actual acoustic spaces through impulse responses and distributing sound to multiple speakers for localized reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If effect processing is performed only by the electronic musical instrument, then the device complexity is reduced, but the sound quality and realism are insufficient
Solution Approach 1:
The sound processing system is divided into two independent parts: the electronic musical instrument that generates the direct sound, and the sound processing apparatus that adds reverb effects. This segmentation allows each device to specialize in one function, improving overall sound quality without requiring one device to be overly complex
Solution Approach 2:
The sound processing apparatus acts as an intermediary between the electronic musical instrument and the speakers. It receives the audio signal from the instrument, processes it by adding reverb effects, and outputs the enhanced sound to the speakers, thereby improving sound quality without increasing the complexity of the instrument itself
2Manufacturing precision
If the electronic musical instrument outputs the audio signal to the sound processing apparatus, then the reverb effect is improved, but the direct sound component is lost
Solution Approach 1:
The sound processing apparatus extracts only the reverb component from the audio signal by using impulse responses to simulate acoustic spaces. It processes the signal to add reverb effects while preserving the original direct sound component, separating the reverb addition function from the direct sound generation function
Solution Approach 2:
The system merges the direct sound from the electronic musical instrument with the reverb effect added by the sound processing apparatus. The audio signal from the instrument is combined with the processed reverb signal to create a composite output that contains both the direct sound and the reverb effect simultaneously
3Manufacturing precision
If multiple speakers are used for sound emission, then the spatial distribution of sound is improved, but the device complexity increases
Solution Approach 1:
The sound processing apparatus distributes different components of the audio signal to different speakers based on their spatial positions. The direct sound is emitted from speakers positioned to match the instrument location, while reverb components are distributed to create a realistic spatial acoustic environment, with each speaker having a specific localized function
Data Source
AI summary
A sound processing system includes an electronic musical instrument and a sound processing apparatus communicable with the instrument. The instrument includes an audio signal generator that generates an audio signal according to a user performance on the electronic musical instrument, a first signal processor that performs first effect processing on the audio signal to generate a first processed audio signal, a first sound emitter that emits a first performance sound component based on at least one of the first processed audio signal or a second processed audio signal, and a first audio signal output that outputs the audio signal. The apparatus includes a first audio signal receiver that receives the audio signal output from the first audio signal output, in a state where the instrument is communicating with the apparatus, a second signal processor that performs second effect processing on the received audio signal, including removing a direct sound component from the received audio signal, to generate the second processed audio signal, and a second sound emitter that emits a second performance sound component based on the second processed audio signal. In the state where the instrument is communicating with the apparatus, the first signal processor changes the amount of the first effect processing to the generated audio signal in generating the first processed audio signal that is emitted by the first sound emitter, in a state where the audio signal is not output to the apparatus, or the first sound emitter emits the second performance sound component based on the second processed audio signal.