 |
|
|
设备调试技巧 Equipment debugging skills
|
A general idea, adjust good microphone
Pop, pop singer, basically is the use of moving coil microphone, speakers placed as far as possible not to put the microphone area coverage. The general direction is the lack of confidence in singing with high frequency, prominent singing sound bright, low frequency energy is sufficient, avoid too much noise and distortion, women with low frequency sound solid, man and high frequency sound field.
To be familiar with the content of two, before commissioning
The equipment of open, shutdown sequence
Boot sequence: audio equipment (VOD, CD, DVD), audio processing equipment (effect, equalizer) to the power amplifier to the TV set, projector. Shutdown in reverse order, should be first off the power amplifier. This operation can prevent the shutdown of equipment, shock, prevent burning power amplifier and the loudspeaker.
The debugging
The 1 power amplifier (Music) the microphone volume potentiometer to the proper position;
The 2 tone compensation knobs are placed in the middle position.
3 test the microphone sensitivity and dynamic performance, and then add reverb and accompanying music singing, singing the reverberation processing, should be more mellow, than the original song sound color fullness and level, rich sense of the scene.
4 experimental music: music to the normal work of the volume; but should pay attention to the volume moderately sweet, rang through the large easy to make people tired and unbearable. (mixing should be in different locations of the listening effect. Such as stereo audio and video, sound, the repertoire should be familiar tune). The music effect should be strength, beauty, not harsh treble, bass is not turbid, singing clear requirements, such as the female voice dental clearly audible but not too heavy.
The 5 note in the formal singing, singing songs.
Three, the matters needing attention:
The tuning should be monitoring the left and right channels. Should be familiar with the sound field sound monitoring and relationship, largely rely on personal hearing.
② reverberation beautify the song. For non professional singers should be appropriately increased to cover the noise and reverberation defects in the sound.
The volume of hours paid attention to enhancing the low and high frequency; large volume when appropriate lifting frequency, to enhance the sound bright degree.
The key to the song. When the song before the emergence of the accompaniment, gradually down down, to highlight the song.
The disco or rock music should pay attention to: promote bass is not a rotation knob, so as to avoid excessive damage to the power output of the power amplifier and speaker.
And if the acoustic feedback howling, should quickly reduce total volume microphone (or fine tuning knob) to get rid of whistlers, find out the reasons and then gradually increase
Debugging four, voice tone matters needing attention
U voice is a complex tone. It is composed of voice pitch and a series of overtones. These harmonics are fundamental frequency number, physics called partials, electro acoustic music is called harmonic, harmonic. The low frequency harmonics with strong amplitude, the timbre is behaved thick mixture; intermediate frequency harmonic amplitude is relatively strong, sound was mellow, natural, harmonious; high frequency harmonic amplitude is relatively strong, sound was bright, clear, strong analytical capacity.
U if the high frequency is too weak, the tone becomes gray dumb, lack of charm, and personality; if the high frequency is too strong, sound becomes sharp, harsh noise.
If the high frequency frequency is too weak, the timbre is dim, hazy; if the high frequency frequency is too strong, the sound will become stiff.
U if frequency frequency is too weak, the timbre will become thin, pale; if the frequency frequency is too strong, sound becomes murky.
Adjusting the reverberation time of five, KTV room
Reverberation usually determines the length of the sound, has a direct impact on the sound color and clarity. Under normal circumstances:
The bass singer, the reverberation time adjusted very short, in order to improve the clarity of sound; if the soprano singing may be appropriate to extend the reverberation time, to increase the voice of color.
For the concert venues, if the room walls are composed of wood materials, then, is itself a reverberation effect, then the reverberation time should be small, so as not to sound unclear; on the contrary, if the room is the glass structure, or hang a cloth curtain, sound absorption material, this lack of reverberation room, should be the reverberation time is larger, in order to avoid the sound of dry.
The audience quantity also has a great impact, because the audience clothing on sound absorbing a great. Generally speaking, the tuner can choose a feeling for the reverberation time in 1-2 seconds.
④ usually reverberation time in 0.7~1.2ms more appropriate. A simple way is to clap in the room, feel the sound in the room reverberation condition, if the resonance medium indicates that the room reverberation time.
Six, how to adjust the microphone volume between good and accompaniment volume ratio
A nice song, on the sense distribution should be broadly accompaniment music accounted for 40%, 60%. accounted for the singing voice
If the singer sounds good, may be appropriate to reduce the number of accompaniment music volume, to highlight the singer singing; if the singer is not familiar with this song to sing out of tune, melody, not on, in order to hide these shortcomings, then it may be appropriate to increase the volume of some accompaniment.
During the operation, should be careful not to put too large microphone volume adjustment, and even lost Cara OK atmosphere; don't make the accompaniment sound too strong, while the "submerged" singer song.
Seven, how to adjust the accompaniment musical tone
The music is based on the original singer of tone and pitch performance, it can not adapt to each singer's noise conditions.
|
| |
