What are the components of stage sound equipment

Release time:

2021-10-12

Summary： Stage sound is generally used in stage performances, and stage sound equipment has many parts, so what are the components of stage sound equipment!

Stage sound is generally used in stage performances, and stage sound equipment has many parts, so what are the components of stage sound equipment!

1. Mixer: A sound mixing device with multiple channel inputs, each channel's sound can be processed separately, and has the output of left and right channels, mixing, monitoring, etc. It is an important equipment for sound engineers, sound engineers and composers to create music and sound.

2. Power amplifier: a device that converts an audio voltage signal into a fixed power signal for driving a speaker to sound. The matching condition of the power amplifier is that the output impedance of the power amplifier is equal to the load impedance of the speaker, and the output power of the power amplifier is matched with the nominal power of the speaker.

3. Reverberator: In the sound system of the dance hall and the large stage lighting concert hall, a very important part is the reverberation treatment of the human voice. People's singing after reverberation processing, can produce a kind of electronic sound beauty, so that the song does not have a charm. It can cover up some defects in the voice of some amateur singers, such as hoarse, guttural and sharp vocal noise through reverberation processing, so that the sound is not so bad. In addition, reverberation can also make up for the phenomenon that amateur singers are not rich in overtones in the timbre structure due to the lack of special vocal training. This is very important for the effect of the stage lighting concert.

4. Frequency divider: The circuit or device that realizes frequency division is called a frequency divider. There are many kinds of frequency divider, according to the frequency of the signal waveform is different, there are two kinds of sine frequency division and pulse frequency division. Its basic function is to divide the full band audio signal into different frequency bands according to the requirements of the combined speaker, so that the speaker unit can obtain the excitation signal of the appropriate frequency band and work in the best state.

5. Variable conditioner: As people's voice conditions are different, the tone requirements for accompaniment music are also different when singing. Some people hope to be lower, while others need to be higher. In this way, it is required that the tone of the accompaniment music should be adapted to the requirements of the singer, otherwise it will feel that the singing and accompaniment are not harmonious. If you use an accompaniment band, you are required to use the inflator for inflection.

6. Pressure limiter: It is a general term for the combination of compressor and limiter. Its main function is to protect the amplifier and speakers (speakers) and create special sound effects.

7. Effect device: Provide sound field effects, including reverberation, delay, echo and audio equipment for special processing of sound.

8. Equalizer: It is a device that promotes and attenuates different frequencies and adjusts the proportion of bass, midrange and treble.

9. Speakers and sound boxes: Speakers are devices that convert electrical signals into acoustic signals. According to the principle, there are electric, electromagnetic, piezoelectric ceramic electrostatic and pneumatic.

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Operating skills and debugging methods of professional audio equipment

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