source:Industry News release time:2022-03-18 Hits: Popular:Brand bar audio wholesale
1. The mixer has multiple channel inputs, the sound of each channel can be processed separately, and has a sound mixing device that has the output of left and right channels, mixing, monitoring, etc. It is an important equipment for sound engineers, sound engineers and composers for music and sound creation.
2. The power amplifier converts the audio voltage signal into a rated power signal for driving the speaker to sound. The matching conditions for the power amplifier power are:
, The output impedance of the power amplifier is equal to the speaker load impedance;
, The output power of the power amplifier matches the nominal power of the speaker.
3. Frequency divider The circuit or device that realizes frequency division is called frequency divider. There are many types of frequency dividers. According to the different waveforms of the frequency-divided signals, there are two types of frequency division: 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.
4. Reverberator In the sound system of dance halls and large-scale stage lighting concert venues, a very important part is the reverberation processing of human voices. After the reverberation process of human singing, it can produce a kind of beauty of electronic sound, which makes the singing unique. It can mask some defects in the voice of some amateur singers, such as hoarseness, guttural sound and screeching vocal chord noise through reverberation processing, making the sound less unpleasant.
In addition, the reverberation sound can also make up for the lack of rich overtones in the timbre structure of amateur singers who have not undergone special vocal training. This is very important for the effect of stage lighting concerts.
5. Since people's voice conditions are different, the pitch requirements for the accompaniment music are also different when singing. Some people want to be lower, while others need to be higher. In this way, it is required that the tone of the accompaniment music should meet the requirements of the singer, otherwise the singing and the accompaniment will be very discordant. If you use the accompaniment tape, you need to use the transposition for transposition processing.
6. The effector provides sound field effects, including reverberation, delay, echo and audio equipment that performs special processing on the sound.
7. Compressor is a general term for the combination of compressor and limiter. Its main function:
, protect the power amplifier and speakers (speakers);
, to create special sound effects.
8. Equalizer Equalizer: It is a device that boosts and attenuates different frequencies and adjusts the ratio of bass, midrange and treble. Its meaning has two aspects:
, Make necessary compensation for the frequency response curve of the audio equipment or carrier so that the output sound is not distorted;
, In order to create the need to process the sound signal to meet the listening requirements. Under normal circumstances, this kind of equipment is not used many times, so most people choose to temporarily rent it from audio rental companies.
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