The TV Station’s studio and dubbing room were carefully designed by acoustic experts. Whether it is sound insulation conditions, sound absorption conditions, reverberation time, or equipped with a microphone, mixer, performance quality is more in line with the recording requirements can generally record a satisfactory sound. However, in order to record high-quality clear, bright, full, round sound, to meet the requirements of the sound, still need some recording skills.
Since the announcer and the host appear in the studio, the recording and recording are completed simultaneously, and the position of the microphone is also considered in the picture. To ensure that the picture is clean, the microphone does not appear in the picture. In this case, in order to record high-quality sound, the shape of the microphone is very important, it is best to use a super-pointing condenser microphone or a small lavalier microphone (the latter is also a condenser microphone), both of which can satisfy The composition of the picture is required, and the condenser microphone has a good sound transmission effect, and the recorded sound is transparent, clean, and has small distortion and restores the reality. However, it is necessary to pay attention to the distance between the user's mouth and the microphone when using it. If it is too close to the microphone, it is easy to produce a near-talk effect; if it is too far away from the microphone, the reverberation is increased, the sound is easy to blur and empty, and it is not clear, so it is necessary to do several experiments in the use, and finally determine the appropriate distance. When using the ultra-small lavalier microphone, pay attention to the position of the microphone (preferably the position of the second button on the chest). Since the microphone is directional, the head of the host or the announcer should not be twisted a lot when recording. Otherwise, the volume and frequency response will change significantly, affecting the recording effect. When recording in the dubbing room, due to without a mirror, many announcers and close-up microphones record. At this time, the level of the recording system should not be too large. Otherwise, the volume of the dubbed TV program and the volume of other TV programs are inconsistent, forming a phenomenon in which the sound is suddenly large and small, and it is easy to generate overload distortion. Generally, the room of the dubbing room is small. If the monitor is placed in the dubbing room, the monitor should be turned off during recording. Otherwise, the acoustic feedback will be caused, and the recorded sound will be empty. Because the recording content of the studio and the dubbing room is mainly language, the advent of the radiation during recording should be the selection of balanced inputs. In order to obtain good anti-interference performance; at the same time, the mixer frequency equalizer keeps the intermediate frequency flat as much as possible, and cuts the signal below 100Hz; the signal above 6KHz is cut off or attenuated by about 5dB at 6KHz to reduce interference. Ensure that the language is clear. If the above-mentioned low frequency reverberation phenomenon occurs, you can cut off some low frequencies and increase 3dB-5dB at 3KHz-4KHz to improve the clarity of the language and obtain satisfactory sound quality.
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