The live sound operation explained here is different from the recording technology. Many people think that the highest level of sound is the recording technology, which is not comprehensive. In the recording technology, there is basically no feedback, because when operating in a recording room, all peripheral factors can be controlled, but when live audio is replayed, we cannot avoid many live audio problems. , So live sound and recorded sound are two different kinds of knowledge.
The requirements for live sound and studio sound are different, so there are many different equipment. For example, mixers used in recording studios have multiple parameter balances for each input, so that the sound engineer can fine-tune the audio source of each input as precisely as possible, and the mixing machine strives to achieve the best sound source effect. A mixer used for live audio is usually simpler in each input. Because in many cases, the on-site tuner does n’t have much time to fine-tune each channel of the sound source very carefully, and the volume control fader of each channel on the live audio mixer, in addition to attenuating the volume, also The crusher can gain 10-14dB. If it is used as a mixing console for a recording studio, this fader does not need to be gained in many cases, so the English name of this fader is fader, which means attenuator. High-power amplifiers used in live audio, they all have fans for heat dissipation, because live audio amplifiers often work at the maximum power output, and many times when doing live audio outside the home clothing design training, around The temperature may be quite high. If there is usually an air conditioner in the recording room, the temperature will of course not be too high, and the power amplifier in the recording room is mainly used to push the monitor speakers. Of course, it does not need to output a lot of power, so the power amplifier only needs to use the ordinary The heat dissipation air source distributor can dissipate very little heat. If the amplifier is equipped with a fan, the sound from the fan will cause noise, so the amplifier in the recording room basically does not require a fan.
The speakers used in the live sound are designed to paint a large sound pressure spread to the audience at a long distance, so they need to be very efficient, but the monitor speakers used in the recording studio are used by the sound engineer to monitor the sound source or The final result of the recording is that the sound engineer sits close to the monitor speaker to switch the power supply fuse to monitor, so the monitor speaker is a near-field speaker, does not require high sensitivity, and the role is completely different from the live audio speaker .
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