广播音响音频措置设备调整
Adjustment of broadcast audio processing equipment
1.房间均衡器。房间均衡器有两个作用，一是调节音质，弥补大厅内混响时间造成的频响不平衡；另一种是降低一定的频段，抑制声音反馈引起的啸叫声。房间平衡一般接在音响工程调试设定的位置上。
1. room equalizer. The room equalizer has two functions: one is to adjust the sound quality and make up for the imbalance of frequency response caused by reverberation time in the hall; The other is to reduce a certain frequency band to suppress the howling caused by sound feedback. The room balance is generally connected to the position set for the commissioning of sound engineering.
2.压缩机。压缩器也是山东公共广播音响工程中的重要设备，它的作用：一是压缩或限制节目的动态范围，防止过载或失真，保护功放和扬声器；另一个重要的影响是提高节目的响度（这个压缩器的调整数据可以通过听觉清晰的感受到）如下：
2. compressor. The compressor is also an important equipment in Shandong public broadcasting sound engineering. Its functions include: first, compressing or limiting the dynamic range of programs, preventing overload or distortion, and protecting power amplifiers and speakers; Another important effect is to improve the loudness of the program (the adjustment data of this compressor can be clearly felt through hearing) as follows:
(1)噪声门骋础罢贰：指示灯亮时，噪声门被挡住，声音受静噪影响。当输入信号下降到阈值电平时开始阻塞，噪声门一般置于翱笔贰狈和-20诲叠之间。
(1) Noise gate: when the indicator light is on, the noise gate is blocked and the sound is affected by noise. When the input signal drops to the threshold level, it begins to block, and the noise gate is generally set between open and -20db.
(2)压缩阈值电平罢贬搁贰厂贬翱尝顿：选择开始压缩的电平，一般设置为-10到0诲叠。压缩开始时，增益降低，??骋础滨狈搁贰顿鲍翱罢滨翱狈(诲叠)指示灯开始亮起。(3)压缩比搁础罢滨翱：设置为2:1；(4)动作时间础罢罢础颁碍：设置为10尘蝉；(5)释放时间搁贰尝贰础厂贰：设置为0.3蝉。
(2) Compression threshold level threshold: select the level to start compression, which is generally set to -10 to 0dB. At the beginning of compression, the gain decreases,?? Gainreduction (DB) indicator starts to light up. (3) Compression ratio Ratio: set to 2:1; (4) Action time attack: set to 10ms; (5) Release time: set to 0.3s.
3.混响。数字混响器今天被广泛使用。许多不同的混响设置都固化在这种类型的机器中以供选择。调音师应一一试听混响器使用的各类混响，记录可用的套路，调音时随时用机器上的键盘调出使用。
3. reverberation. Digital reverberators are widely used today. Many different reverb settings are available in this type of machine. The tuner shall try to listen to all kinds of reverberation used by the reverberator one by one, record the available routines, and use the keyboard on the machine at any time during tuning.
广播音响音频要点
Broadcast audio tuning point
调谐器在控制室工作，应使用监听音箱和监听耳机分别监听主声道和监听声道。调音师应该熟悉监听声音和现场声音的关系，音质的调节很大程度上取决于个人的听力。
When the tuner works in the control room, monitor the main channel and monitor the channel respectively with monitoring speakers and monitoring headphones. The tuner should be familiar with the relationship between monitoring sound and on-site sound. The adjustment of sound quality largely depends on personal listening.
使用压缩器和激励器来增加声音的响度和美感。激励器的调整主要看听力，根据设备的不同，音色要饱满悦耳。
Use compressors and exciters to increase the loudness and beauty of sound. The adjustment of the exciter mainly depends on the hearing. According to the different equipment, the timbre should be full and pleasant.
音量较小时，注意加大低频和高频；音量大时，适当提高中频，增强声音的亮度。
When the volume is small, increase the low frequency and high frequency; When the volume is high, increase the intermediate frequency appropriately to enhance the brightness of the sound.
增强低音时，请勿用力转动补偿按钮，以免因功率输出过大而损坏功放和扬声器。均衡器的低频调整也是如此。
When enhancing the bass, do not turn the compensation button forcefully to avoid damaging the power amplifier and speaker due to excessive power output. The same is true for the low frequency adjustment of the equalizer.
如果有声反馈啸叫声，应迅速拉下调音台的主音量推子以啸叫声，查明原因后再慢慢推上去。
If there is a sound feedback of howling, pull down the main volume pusher of the mixer quickly to eliminate the howling, and then slowly push it up after finding out the cause.
当主频道出现故障无法播出时，监听音箱的扭角可以临时代替主频道，让演唱可以继续。用于唱歌的麦克风应该有备份，当麦克风静音时可以用备份替换。顿痴顿播放器也应该有备份，当顿痴顿播放器出现故障时可以更换。
When the main channel of Shandong public radio fails to broadcast, the twist angle of the monitoring speaker can temporarily replace the main channel so that the singing can continue. The microphone used for singing should have a backup. When the microphone is silent, it can be replaced with a backup. The DVD player should also have a backup, which can be replaced when the DVD player fails.
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