How to optimize stage acoustics

- Nov 11, 2019-


The professional quality of the tuner

Zhang Guilan, the voice dubbing actor, said well: "the language performance art of actors and the debugging art of sound engineers are the relationship between scales and mounds", "the actual debugging sound is not the original sound of actors, but the sound that has been transformed by sound engineers through sound equipment". It can be seen that the quality of a sound mixer directly affects the effect of stage sound, and then affects the quality of the whole stage performance. Quantity. Therefore, the stage mixer should have professional quality.


Good sound debugging technology

As a tuner, we should have a deep analysis and understanding of the music works to be debugged, and combine the electroacoustic technology with the sound technology well. For example, equalizer is used to improve the timbre of the original sound; reverberator and time delayer are used to increase the sense of amiability, distance and space; and "double" technology can be used to increase the "group sense" of an instrument; especially the use of audio digital technology now, the tuner can create the timbre of human voice and instrument by modifying the sound wave, so as to highlight the excellent timbre according to the characteristics of different actors' timbre Potential, to make up for its voice weakness, such as in the Male Solo reverberation intensity should be lower, the female solo reverberation intensity should be higher, so that the singing effect will be better. Only by mastering the requirements of different types of stage performance sound, can the tuners grasp the overall situation of the stage and bring out the stage sound effect of.


Good acoustic art accomplishment

The good acoustic art accomplishment of the tuner directly affects the effect of stage sound debugging. The tuners should be familiar with different actors, different musical instruments, and the differences of vibration frequency and harmonic presentation of sound producing materials. Only when they are familiar with the frequency band of various musical instruments and human voice can they identify the characteristics and defects of sound. If a singer is singing on the stage with MIDI accompaniment, his accompaniment will be handled by the tuner. In the same way, the music for the enjoyable dance is also handled by the tuner. At this time, the stage requires that the tuners must apply the contrast of music strength and weakness to the stage performance to make it echo, so as to achieve the perfect performance effect.


Have good psychological quality of sound debugging

It has been proved that the psychological quality of the tuners is closely related to the stage sound effect. The instability of the psychological mood will lead to the decrease of the hearing sensitivity and resolution of the tuners, and even the inability to correctly judge various timbres, which will have a negative impact on the whole stage effect.

Therefore, the tuners should master the necessary psychological knowledge, cultivate strong psychological adaptability, psychological endurance and psychological control ability, and on this basis, flexibly use the knowledge of art psychology, creative psychology, audience psychology, etc., and organically combine the seriousness, solemnity and humor of music, so as to improve their own performance in stage acoustics Overall grade and level.


Ensure the professional level of sound equipment combination

With the development of the times, modern audiences have higher requirements for the stage, not only to meet the pleasure of visual experience, but also to complete the aesthetic process of hearing. Therefore, in order to fully optimize the stage sound effect, one of the key factors is to carefully select the sound equipment.

The stage sound system is composed of signal source equipment, signal processing equipment, power amplifier, loudspeaker and other equipment. Through the debugging of the tuner, good stage sound effect can be achieved.


Ensure the specialization of audio equipment configuration

Sound equipment is an important foundation to ensure the sound effect of stage, which is directly related to the success and failure of stage art presentation. The frequency range of microphone power amplifier and speaker is very important. At the same time, the mixer is a very important equipment in the audio equipment, which is the most important part of the audio equipment.

Good sound system can beautify the stage performance of actors, such as promoting the development of stage performance plot and rendering the whole stage atmosphere. Therefore, it is necessary to use advanced electroacoustic devices and equipment as stage sound reinforcement to achieve the clarity of language and the fullness of musical works, and to create a satisfactory stage effect.


Ensure microphone selection and microphone pickup in place

In terms of microphone selection, different microphones should be used according to different performers: when the host talks, he should use a microphone equipped with a cover, which can not only avoid the "pompous" sound caused by the air flow of words with "B" and "P", but also avoid the "exhaling" sound in the windy outdoor field. Microphone pickup can be divided into vocal pickup and instrumental pickup.

In the aspect of human voice pickup, based on the moderator's intonation, most of them are middle tone and low tone. The more low tone affects the speech clarity, and the more high tone is harsh. Therefore, the frequency band close to low-frequency 150Hz can be attenuated by 6-10dh, the middle-frequency 250hz-2khz can be increased by 3-6db, and the high-frequency 5KHz can be attenuated by 3-6db, so the voice clarity and the brightness of sound quality can be improved.

In the aspect of instrument picking up, we can make correct debugging according to whether the instrument is an electro acoustic instrument: the electro acoustic instrument itself has its own pick-up, so the tuner only needs to connect the signal line with the tuning table, but we should pay attention to that the input part of the tuning table is generally divided into two parts: low resistance and high resistance input. In order to adjust the sound effect of * in non electroacoustic instruments, it is necessary for the tuner to fully understand the main frequency range of the instrument sound.


Ensure sound and power amplifier are placed and used correctly

The placement of speakers directly affects the audience's hearing, so we should first pay attention to the placement of speakers. When the audience watches the program, the direction of attention is the source of the sound. The front position on both sides of the stage or the two sides of the platform mouth centered on the stage can make the angle of the speaker cover the entire audience. The speakers can be hoisted during the off-site performance. The special active speakers are * selected, which not only avoids the low-frequency scream, but also improves the loudness of sound reinforcement due to the reflection of the wall on the low-frequency, so that the audience can receive enough loudness.

Combined with site atmosphere


Create a sound effect compatible with the stage environment

Stage atmosphere is a comprehensive art. Without high-quality stage acoustics, there will be no successful display of stage atmosphere. The existence of stage acoustics is also the product of the development of stage atmosphere. At this stage, they are mutually causal and interdependent. Therefore, as an excellent tuner, we should pay attention to the combination of the scene atmosphere to create a sound effect that is compatible with the stage environment.


Fully prepare for the sound debugging of different stage venues

The quality of stage sound effect is directly affected by the site conditions. The indoor and outdoor site conditions are different, the indoor site size and shape are different, and the sound reflects different effect requirements. Therefore, the measurement should be carried out in advance, and the acoustic instrument should be used to measure the acoustic characteristics of the site;The measurement contents include: sound field nonuniformity, * sound pressure pole, sound transmission gain, sound clarity, reverberation period, intelligibility, etc. on this basis, the mixer should flexibly respond to different stage sites and make optimized sound debugging. Generally speaking, the volume of outdoor performances should be relatively large, and that of indoor theatres should be relatively small. Different indoor theatres should also be adjusted according to the actual situation of different performance locations until they get satisfactory sound effect.


Fully guarantee the correct operation of sound equipment on stage

With good design, good sound, and how to operate in the performance. On stage, the overall design of sound effect and the overall intention of performance are harmonious. The sound effect must be included in the director's conception, and be done according to the director's specific regulations on sound. The degree of participation of each kind of sound, the volume, the strength of the volume, and the time of entering must be rehearsed accurately and properly, so that the audience can enjoy the sound in a specific stage environment by integrating it with the whole performance through sound color, rhythm and time Sound effect art charm, so as to play its due role in the performance.

At the same time, with the changes of plot, lines, actions, space, time and mood of the stage program, we should seize the opportunity to deal with the changes of effect and choose the * method to play the effect changes on the stage.


Pay attention to the close cooperation between sound debugging and light changeStage performance is diverse, the same sound effect in different forms of performance and different lighting changes, will give the audience a different feeling. In addition, the expression of the emotional changes of the characters also needs the cooperation of stage lighting. Only when the sound equipment is correctly used and the light color is coordinated, can the stage performance achieve the pleasing effect.In order to ensure the harmony and integrity of the stage art, in the performance process of lighting and acoustics, it is required that the tuners and lighters closely cooperate with the performance progress, especially for some key sound effects, it is necessary to effectively cooperate with the stage lighting to create a moving "stereo image". For example, in Andersen's fairy tale musical "little girl selling matches", the leading little girl is tired In the dark corner of the wall, the sound of wind and snow appeared in the sound effect, which made the audience feel a cold scene of wind and snow, hunger and cold. With the little girl lighting one match after another, the sound of wind and snow gradually weakened and disappeared. The warmth of the match drove away the darkness and dispelled the cold.

Due to the integration of sound and light, the stage atmosphere is rendered and the audience is unconsciously attracted to the plot. Therefore, in the practical application of stage acoustics and lighting, it is necessary to closely cooperate with the performance progress and achieve mutual coordination and effective cooperation so as to meet the requirements of stage art creation.

To sum up, this paper expounds three key elements of optimizing stage sound effect, which are "the quality of stage mixer, the combination of sound equipment and the integration of sound and stage environment".