What equipment is there for the stage sound?
Stage sound
The audio equipment professionally used for stage performances is collectively called stage sound, and the stage sound is an important branch of performance equipment.
Professional stage audio equipment includes: monitor mixer, amplifier mixer, portable mixer, power amplifier, dynamic microphone, condenser microphone; wireless microphone, speaker, monitor speaker, amplifier speaker, subwoofer, equalizer, mixed Sounders; effects, delays, compressors, limiters, splitters, noise gates, laser phonographs, recording decks, DVD players, projectors, transposers, karaokes, headphones, and many other devices.
The tuner is a professional who is responsible for all the audio equipment on the stage. First of all, we need to concentrate all the sound sources on the mixer, divide them into sub-paths, group, adjust, and then send the total output audio to the amplifier and speakers through the total sound equalization to make it with the venue. The acoustic characteristics are adapted. The tuner needs to know the musical characteristics of each link, the frequency of the most easy feedback, and the resonance point of the venue to control the volume of each song and equalize them. In addition, the effector should be used to improve the vocal and instrumental sounds that are not used, and to familiarize with the functions and limitations of each piece of equipment without causing distortion and other undesirable effects. To ensure the quality and reliability of the selected equipment, it is necessary to prepare for possible failures in advance and take effective remedies in a timely manner. Sometimes it is necessary to complete the preparation work a few hours before the performance. Although the time is very tight, it is safe to take care of each signal line in order to be safe.
The average output power refers to the power that operates continuously for a long time. Peak power is the maximum power that can be tolerated in a short period of time. It is much larger than the rated power. The output of the amplified sound is determined by the power amplifier. A concert of a certain scale must have a certain power, and the standard is one watt per person. The power will vary depending on the type of concert, the size of the venue, the reverb and the number of speakers.
evaluation standard
There are two evaluation criteria for professional audio quality for stage performances. The first is the objective standard, that is, the instrument detection standard; the second is the subjective evaluation standard. Among them, the instrument testing standard (that is, the objective standard) is clear, and the subjective standard is different from person to person. Therefore, firstly, it is necessary to detect good performance objectively, which is a good speaker and foundation. Of course, the subjective evaluation should be "resolving power". "High level of music analysis"", "strong sense of vividness (lively music)", "good image (sound cohesion, positioning)", "airy (elasticity)", "high transparency" Good)).
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