調音臺通道電平衰減開關：
Mixer channel level attenuation switch:
一些調音臺器在增益旋鈕前增加了一個大約20dB的電平衰減開關。當CD或其他音源從高阻端口輸入時，由于高電平，可能需要按下此開關來衰減音源信號。20dB比較合適，但是如果有的音響師在演出的時候不小心按了這個開關，聲音信號會突然增加20dB而不衰減。如果它跳起來，一些音響設備會當場報銷，所以我們在調節每個旋鈕或開關的時候一定要有明確的目的，不要盲目操作。
Some mixers add a level attenuation switch of about 20dB in front of the gain knob. When a CD or other sound source is input from the high resistance port, it may be necessary to press this switch to attenuate the sound source signal due to the high level. 20dB is more appropriate, but if some sound engineers accidentally press this switch during the performance, the sound signal will suddenly increase by 20dB without attenuation. If it jumps up, some audio equipment will be reimbursed on the spot, so we must have a clear purpose when adjusting each knob or switch, and don't operate blindly.
調音臺增益調整：
Mixer gain adjustment:
一些音響工程師不知道通道增益的重要性，所以他們隨意調整旋鈕。有時他們會關閉增益旋鈕，甚同時按下20dB電平衰減開關。想想此時的聲音會有多低？音樂的信噪比和動態根本談不上。如果用同樣的方法調整麥克風通道，歌手也只能承認自己倒霉，即使大喊大叫，也不會發出高亢而富有穿透力的歌聲。
Some sound engineers don't know the importance of channel gain, so they adjust the knob at will. Sometimes they turn off the gain knob and even press the 20dB level attenuation switch at the same time. Think about how low the sound will be at this time? The signal-to-noise ratio and dynamics of music are not at all. If the microphone channel is adjusted in the same way, the singer can only admit his bad luck. Even if he yells, he will not make a loud and penetrating song.
當然，有些音響師喜歡把增益調到很高，這對音樂有好處，但音樂難聽，歌手卻慘不忍睹。再大一點就好像洪水沖破堤壩一樣不可控制，高亢的歌聲也會變得不可控制。像斷鑼或爆豆一樣的嘈雜，因為此時信號電平太高，信號已經嚴重失真，這種情況下麥克風經常會返回輸入?？梢娫鲆婧苤匾?，不然會在表演過程中造成意外。
Of course, some sound engineers like to set the gain very high, which is good for music, but the music is ugly, but the singer is miserable. A little bigger is as uncontrollable as a flood breaking through a dam, and the high pitched song will become uncontrollable. It is as noisy as breaking a gong or exploding beans, because the signal level is too high and the signal has been seriously distorted. In this case, the microphone often returns to the input. It can be seen that the gain is very important, otherwise it will cause accidents during the performance.
調音臺均衡組調整：
Adjustment of mixer balance group:
顧名思義，調音臺器主要是用來調節音色的，而音色的調節主要靠均衡組。
山東音響認為，其實很簡單。無非就是高、中、低音加上幾個對應的頻率選擇旋鈕。不一定很好，但也不會出現演出事故。
As the name suggests, the mixer is mainly used to adjust the timbre, and the timbre adjustment mainly depends on the balance group. Shandong sound believes that it is actually very simple. It's nothing more than high, medium and bass plus several corresponding frequency selection knobs. Not necessarily good, but there will be no performance accidents.
然而，一些音響工程師有時會大膽地轉動平衡旋鈕。如果低音加入量大，會大大增加整個功放和音箱的負擔，可能損壞設備，聲音容易失真；如果音高太高，高音揚聲器會很危險。總之，均衡旋鈕應該抬高到一定程度。過度增加會導致不可預知的故障。
However, some sound engineers sometimes boldly turn the balance knob. If the bass is added in a large amount, it will greatly increase the burden of the whole power amplifier and speaker, which may damage the equipment and distort the sound easily; If the pitch is too high, the tweeter can be dangerous. In short, the balance knob should be raised to a certain extent. Excessive increases can lead to unpredictable failures.
That's all for the adjustment of the mixer of professional audio equipment. You can pay attention to the website www.wenguangzhining.com Com for more details!
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