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    • 5. 发明授权
    • Audio signal measurement method for speaker and electronic apparatus having the speaker
    • 具有扬声器的扬声器和电子设备的音频信号测量方法
    • US08913752B2
    • 2014-12-16
    • US13426610
    • 2012-03-22
    • Hann-Shi TongYu-Sheng LeeYu-Chieh LaiLei ChenChun-Ren HuWei-Syuan Lin
    • Hann-Shi TongYu-Sheng LeeYu-Chieh LaiLei ChenChun-Ren HuWei-Syuan Lin
    • H04R29/00
    • H04R29/001
    • An audio signal measurement method for a speaker and an electronic apparatus having the speaker are provided. The electronic apparatus further has a processing circuit and a power amplifier. The processing circuit is coupled to the speaker and configured to execute a time domain to frequency domain transform according to a voltage value of an audio signal and a current value of current feedback from the speaker so as to obtain a frequency response curve. The power amplifier is coupled to the speaker and configured to drive the speaker according the voltage value of the audio signal. The processing circuit is capable of determining whether the frequency response curve is located within a predetermined area such that the processing circuit generates a signal when the frequency response curve is located out of the predetermined area. Thereby, the electronic apparatus may measure its transducer distortion and acoustic box leakage.
    • 提供了一种用于具有扬声器的扬声器和电子设备的音频信号测量方法。 电子设备还具有处理电路和功率放大器。 处理电路耦合到扬声器,并且被配置为根据音频信号的电压值和来自扬声器的电流反馈的当前值执行时域到频域变换,以获得频率响应曲线。 功率放大器耦合到扬声器并且被配置成根据音频信号的电压值来驱动扬声器。 处理电路能够确定频率响应曲线是否位于预定区域内,使得当频率响应曲线位于预定区域之外时处理电路产生信号。 因此,电子设备可以测量其换能器失真和声箱泄漏。
    • 8. 发明申请
    • AUDIO SIGNAL MEASUREMENT METHOD FOR SPEAKER AND ELECTRONIC APPARATUS HAVING THE SPEAKER
    • 具有扬声器的扬声器和电子设备的音频信号测量方法
    • US20130251158A1
    • 2013-09-26
    • US13426610
    • 2012-03-22
    • Hann-Shi TongYu-Sheng LeeYu-Chieh LaiLei ChenChun-Ren HuWei-Syuan Lin
    • Hann-Shi TongYu-Sheng LeeYu-Chieh LaiLei ChenChun-Ren HuWei-Syuan Lin
    • H04R29/00
    • H04R29/001
    • An audio signal measurement method for a speaker and an electronic apparatus having the speaker are provided. The electronic apparatus further has a processing circuit and a power amplifier. The processing circuit is coupled to the speaker and configured to execute a time domain to frequency domain transform according to a voltage value of an audio signal and a current value of current feedback from the speaker so as to obtain a frequency response curve. The power amplifier is coupled to the speaker and configured to drive the speaker according the voltage value of the audio signal. The processing circuit is capable of determining whether the frequency response curve is located within a predetermined area such that the processing circuit generates a signal when the frequency response curve is located out of the predetermined area. Thereby, the electronic apparatus may measure its transducer distortion and acoustic box leakage.
    • 提供了一种用于具有扬声器的扬声器和电子设备的音频信号测量方法。 电子设备还具有处理电路和功率放大器。 处理电路耦合到扬声器,并且被配置为根据音频信号的电压值和来自扬声器的电流反馈的当前值执行时域到频域变换,以获得频率响应曲线。 功率放大器耦合到扬声器并且被配置成根据音频信号的电压值来驱动扬声器。 处理电路能够确定频率响应曲线是否位于预定区域内,使得当频率响应曲线位于预定区域之外时处理电路产生信号。 因此,电子设备可以测量其换能器失真和声箱泄漏。