Unity組件：Audio Low Pass Filter PRO only 音頻低通濾波器僅專業(yè)版

The Audio Low Pass Filter filter passes low frequencies of an AudioSource, or all sound reaching an AudioListener, and cuts frequencies higher than the Cutoff Frequency.

音頻低通濾波器（Audio Low Pass Filter?）， 通過(guò)音頻源的低頻率，或所有聲音達(dá)到音頻偵聽(tīng)器（AudioListener），并且衰減頻率比截止頻率高。

The Lowpass Resonance Q (known as Lowpass Resonance Quality Factor) determines how much the filter's self-resonance is dampened. Higher Lowpass Resonance Q indicates a lower rate of energy loss i.e. the oscillations die out more slowly.

低通共振品質(zhì)（被稱為低通共振品質(zhì)因數(shù)）決定多少濾波器的自諧振被抑制。較高的低通共振質(zhì)量（Lowpass Resonance Q?）表示能量損失率較低，振蕩消逝更慢。

The Audio Low Pass Filter has a Rolloff curve associated with it, making it possible to set Cutoff Frequency over distance between the AudioSource and the AudioListener.

音頻低通濾波器（Audio Low Pass Filter）有一個(gè)與它關(guān)聯(lián)的衰減曲線，使它可以設(shè)置音頻源（AudioSource）與音頻偵聽(tīng)器（AudioListener）之間隨距離的截止頻率（Cutoff Frequency）。

The Audio Low Pass filter properties in the inspector.
檢視面板的音頻低通濾波器屬性

Properties 屬性

• Cutoff Frequency 截止頻率
  Lowpass cutoff frequency in hz. 10.0 to 22000.0. Default = 5000.0.
  低通截止頻率在10.0～22000.0hz。默認(rèn)=5000.0 hz。
• Lowpass Resonance Q
  低通共振品質(zhì)
  Lowpass resonance Q value. 1.0 to 10.0. Default = 1.0.
  低通共振品質(zhì)值在1.0～10.0 。默認(rèn)=1.0.

Adding a low pass filter 添加一個(gè)低通濾波器

To add a low pass filter to a given audio source just select the object in the inspector and then select Component->Audio->Audio Low Pass Filter.

要添加一個(gè)低通濾波器到一個(gè)給定的音頻源，在檢視面板選擇對(duì)象，然后選擇 組件?- >音頻?- >音頻低通濾波器。（Component->Audio->Audio Low Pass Filter.）

Hints 提示

• Sounds propagates very differently given the environment. E.g. to compliment a visual fog effect is to add a subtle low-pass to the Audio Listener.
  聲音的傳播在不同的環(huán)境是不同的。例如表達(dá)一個(gè)可視化的霧效果就是添加低通濾波器到音頻偵聽(tīng)器。
• The high frequencies of a sound being emitted from behind a door will not reach the listener. To simulate this, simply change the Cutoff Frequency when opening the door.
  從門后發(fā)出的聲音的高頻率，不會(huì)達(dá)到偵聽(tīng)器。為了模擬這個(gè)，簡(jiǎn)單地在開門時(shí)改變截止頻率（Cutoff Frequency）。