1. Awareness of the name and function of the power amplifier panel:
1: Total reverberation volume: ECHO or ECHO VOL This knob can control the direct sound level of reverberation echo, that is, the overall reverberation effect is more or less! Note: There are also two function knobs used with this function-REPEAT (the number of repetitions of reverberation), DELAY (the knob can adjust the length of the reverberation echo extension) these three function knobs must be used together, one missing No, otherwise the effect is not ideal. If you want to debug a more satisfactory effect, you must adjust the three knobs together, repeat the feeling!
2: Total microphone volume: MIC VOL This knob can control the volume of all microphones. Note: There are three microphone volume control knobs under the total microphone volume, which can control the volume of each microphone separately: MIC1 (microphone 1 volume) MIC2 (microphone 2 volume) MIC3 (microphone 3 volume)
3: The total volume of music: MUSIC VOL This knob can control the volume of the computer accompaniment, adjust the knob to achieve the volume of the song
4: Sound quality control: MIC BASS (microphone bass) MIC TREBLE (microphone treble) MUSIC BASS (music bass) MUSIC TREBLE (music treble) 5: Left and right channel balance: BALANCE The knob must be adjusted in the middle, otherwise the left and right speakers will emit 'S voice is not the same size
2. Tuning skills:
1: About microphone howling Usually the microphone howling is caused by the excessive volume of the microphone, you must carefully check whether it is caused by the excessive volume of the microphone or the excessive volume of the individual microphone. Another cause of microphone whistling is caused by the high quality of the microphone. Listen carefully to the frequency of howling: the harsh scream is caused by the MIC TREBLE (microphone treble), and the microphone treble must be reduced. If it is a very low whistle, the whistle that feels a little vibrating is caused by too much MIC BASS (microphone bass), and the microphone bass must be reduced.
2: Under normal circumstances, that is, during business hours, if the customer requests to adjust the light and heavy of the reverberation, try not to adjust the REPEAT or DELAY in the reverberation effect, as long as the ECHO (ECHO VOL) ??is increased or decreased. !
3: The computer music accompaniment volume control should not overwrite the guest's singing voice. Otherwise, the guests will find it hard to sing.
4: There is also a key problem in the tuning technology, which is the pairing of microphones. If the microphones in a box are not of the same brand, their frequencies are also different. To put it simply, the sound quality of the microphones is different. If their sound quality is not the same, it will be difficult for us to adjust the sound quality. , After you take care of the sound quality of this brand of microphone, the sound quality of that other brand of microphone can't be reflected. It is easy to cause microphone whistling when the microphones are not paired. Therefore, the microphones in our box must be uniform and the sound quality is the same. We must pay special attention to this point in our work and do not allow the microphones to be unpaired. !
5: Good audio equipment is reflected in---good singing: easy to sing; clear treble and bass: clear layers; reverberation effect: natural, not dry or prolonged, and the echo is too loud! Don’t overwrite the vocals when the guests sing with music!
3. Responsibilities of the Audio Department on the operation and maintenance of audio equipment:
1: Before business, always check whether there is any poor contact with the microphone cable in the private room. Microphones must be paired when changing microphones at ordinary times!
2: Always check the tweeter and woofer speakers in the private room before business, if there is any damage, repair and replace if there is any! Repair as much as possible to save costs for the company!
3: Check the computerized song ordering system in the private room frequently before opening, and see if you can order the song normally. And pay more attention to individual songs with bad accompaniment, register them, and then solve them! 4: Earnestly listen to the work suggestions of various departments of the company to the sound department, and do our best to do the work well. Usually listen to the information of the guests requesting to add songs, and then report to the supervisor.
5: The sound department must ensure the normal operation of each box, unless under special circumstances!
6: Do a good job in the registration of maintenance and repair, replacement of accessories and parts and equipment to be repaired must be registered, such as replacement of tweeter/woofer and so on.
7; Be open-minded and easy to learn. If you encounter things you don't understand and work problems in your work, you can ask your supervisor for answers and get help!
8: After debugging the audio equipment in the box to the best condition with the assistance of the supervisor, use the arrow label to paste the scale that has been adjusted to the ideal position, make a mark, and usually operate the audio equipment in the direction of the arrow, then the audio can be adjusted To the best condition, it can be reset at any time even if it is changed according to the request of the guest! Usually, customers require the lightness and severity of the reverberation effect, as long as the ECHO VOL is adjusted to the scale that the customers are satisfied with! After the guests leave, you can reset the reverberation ECHO VOL to the position of the arrow label.
9: In business, when equipment is damaged, use the method of substitution, replace the broken with good equipment, and repair the broken in free time.
10: Regularly patrol the boxes to avoid the sound volume being too loud to burn the audio equipment. KTV tuning, subjective sense of hearing is very important. For sound engineer students with a poor sense of hearing: Generally speaking, DELAY should be between 100-180ms, and it can imitate a theater of about 800-1500 square meters, and REPEAT should be between 5～ Between 10 times, ECHO LEVEL is probably between 20-40. To understand echo and reverberation, ECHO is echo, REV is reverberation, REPEAT is the number of echoes, or echo depth, and ECHO VOL is the amount of echo.