主动降噪(Active Noise Cancelling, ANC)是一种降噪技术,通过生成与噪音相位相反、振幅相同的声波来抵消噪音,主要应用于耳机和汽车等领域。 主动降噪(Active Noise Cancelling)技术解析 主动降噪(Active Noise Cancelling)的定义 主动降噪(Active Noise Cancellation,简称ANC)是一种高科...
An active noise cancelling system (20) comprising: an earphone (8′) comprising: an electro-acoustic driver (11); and at least one sensing microphone (12, 13); tunable active noise cancelling circuitry (7) operative to receive a signal from the at least one sensing microphone (12, 13), ...
在 Non-Stationary Noise 中,比较具有代表性的要数餐厅里的噪音 Babble Noise,知名的Cocktail Party Effect [3] (Arons, 1992) 就是基于 Babble Noise 的。Babble Noise 是指多个说话者的交谈声组成的背景噪声,此类噪声不仅仅是非平稳的,而且和我们所需语音的成分相似,导致在进行语音增强 Speech Enhancement(语音为...
降燥音，应该是一种耳机
The active noise control system controller enters a power saving mode when the vehicle ignition is turned off and the vehicle is not running. A horn switch activation 44 during the power saving mode 42 wakes up the controller so that the controller unmutes 48 an amplifier and drives 50 the ...
网络主动降噪;有源抗噪音;主动式降噪
A method of adjusting an ANC system is disclosed in which a microphone is acoustically coupled to a loudspeaker via a secondary path and the loudspeaker is electrically coupled to the microphone via an ANC filter. The method includes measuring phase characteristics of the secondary path in various...
As with all feedback systems, runaway amplification can occur. There’s a small risk of the system picking up its own anti-noise signal and increasing the level of amplification in a bid to cancel it out; this can actually increase the amount of noise or even produce a ringing feedback ...
Apple's AirPods come with improved audio quality, USB-C charging, and a new case design. Available with and without Active Noise Cancelling, the ANC model offers a more robust ambient noise system, and reliable noise cancelling. See price at Amazon ...
Active noise cancelling (ANC) headsets are an attractive proposition to consumers, since they offer a superior listening experience in conditions that are