18390769. METHOD AND APPARATUS FOR IMPROVING SOUND QUALITY OF SPEAKER simplified abstract (Huawei Technologies Co., Ltd.)
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METHOD AND APPARATUS FOR IMPROVING SOUND QUALITY OF SPEAKER
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Inventor(s)
METHOD AND APPARATUS FOR IMPROVING SOUND QUALITY OF SPEAKER - A simplified explanation of the abstract
This abstract first appeared for US patent application 18390769 titled 'METHOD AND APPARATUS FOR IMPROVING SOUND QUALITY OF SPEAKER
Simplified Explanation
The method described in the abstract aims to improve the sound quality of a speaker by processing the input signal through frequency division, transient detection, and signal envelope modulation. The key points of the method are:
- Frequency division of the input signal into low-frequency and high-frequency components.
- Transient detection to identify transient signals in the low-frequency component.
- Signal envelope modulation of transient signals to enhance their loudness.
- Combining the modified low-frequency signal with the high-frequency signal to generate the output signal.
Potential Applications: This technology could be applied in audio systems, home entertainment systems, car audio systems, and professional sound equipment to enhance the sound quality and overall listening experience.
Problems Solved: This technology addresses issues related to sound quality degradation, particularly in transient signals, by modulating the signal envelope to improve loudness and overall output quality.
Benefits: The method improves the sound quality of speakers by enhancing the loudness and clarity of transient signals, resulting in a more immersive audio experience for listeners.
Potential Commercial Applications of Improved Sound Quality Technology:
- High-End Audio Systems with Enhanced Sound Quality
- Car Audio Systems with Improved Acoustics
- Professional Sound Equipment for Concerts and Events
Possible Prior Art: One possible prior art could be the use of signal processing techniques to enhance sound quality in audio systems. Another could be the use of frequency division to separate audio signals into different frequency bands for processing.
Unanswered Questions: 1. How does the method handle complex audio signals with multiple transient components? 2. Are there any limitations to the frequency division and envelope modulation techniques used in the method?
Original Abstract Submitted
A method for improving sound quality of a speaker includes: performing frequency division on an input signal of the speaker to obtain a first low-frequency input signal and a first high-frequency input signal, where the input signal is a time domain signal; performing transient detection on the first low-frequency input signal to determine whether the first low-frequency input signal is a transient signal; if the first low-frequency input signal is a transient signal, performing signal envelope modulation on the first low-frequency input signal to obtain a second low-frequency input signal; determining an output signal of the speaker based on the second low-frequency input signal and the first high-frequency input signal, where a startup voltage of the second low-frequency input signal is higher than a startup voltage of the first low-frequency input signal, and loudness of the second low-frequency input signal is greater than loudness of the first low-frequency input signal.
