Karaoke and DJ Mixing for a Better Sound

Is your hobby or profession built around karaoke or dj mixing? If so, this article is for you. First, we will review the generalities of audio mixers and the basic controls used to
mix signal levels from input to output, and finally, how to mix these signals for karaoke
mixers, or dj mixers, to compliment the listening experience for live performances. I have included my experience in doing karaoke shows for nine years and hope it will help improve your experiences as well. Finally, I tie it all together for you, so buckle your seat belts, because we're going for a audio mixing ride.

1. TYPES of AUDIO MIXERS
There are 3 types of audio mixers on the market as of this writing 1. analog, 2. digital, and finally MIDI software mixers for PCs. Whichever type you choose, they are all basically the same in concept and design, for mixing audio signal levels.

2. YOUR RESPONSIBILITY as a SOUND ENGINEER
It is very important to understand what mixer controls do, and how they control an audio signal. Indeed, audio mixers can be very intimidating at first, but if you break down each set of controls into what we call channel strips, it is easy to control the signals.
Your microphones, players, musical instruments etc., are your input signals to be mixed together, to be processed at the master controls.
The trim controls input levels. They should be turned down at hookup to prevent any feedback associated your inputs. If it is set to high, it distorts the input signal. If set to low, it can make the audio signal non recordable, so it's easy to see the importance of audio levels. Most mixers use led indicators or bar graphs to show what the levels are. Train your ear to hear the levels of each channel. Level balance is important for a good sound.
Channel strips include knobs for EQ level, or tone controls for each separate channel. Panning controls can be a slide, or knob, and its purpose is to control the separation between left, right, and center channels to the master control. Many new digital mixers have built in effects processors that control echo, reverb, and chorus etc. They can really enhance the sound with a little practice.

3. SETTING LEVELS FOR LIVE PERFORMANCES
Setting your levels for live performances is a constant challenge for audio mixing technicians, karaoke & dj productions.
The one thing that separates a good sound tech. from a bad tech., is the ability to pay attention to the incoming signals, compared to the sound coming out of the speakers & monitors etc. You must notice karaoke and music cds are recorded at different levels, and apply that by paying attention to the output volume, and adjust accordingly. When singers are involved, constant adjustments should be made, so that the music & singing levels are consistent in relation to each other. Singers, depending on confidence, experience, and the type of song played, change with each performance. It's imperative, to strive for a balanced level, not only for the singer, but the audience.

4. CREATING AUDIENCE PARTICIPATION
I have noticed in all of my shows, people that want to get up and sing but lack the confidence to do so. Here are a few tricks that I have learned along the way.
During the course of your show, indicate that you would be more than happy to sing along with anyone interested in giving it a try. Always compliment singers on their performances with something positive. Offer to give pointers to anyone after the show.
New singers take a while to gain confidence and improve their performances. I Like to sing new songs for the first time, to show them, they don't have to be perfect.


The way that you respond to paying attention from input to output audio levels have a direct affect on how well your audience or singers will respond to your efforts. Remember, it's all about having fun and encouraging others to commit to a hobby that has been around for years and continues to grow in popularity. I am promoting shows in city parks, supper clubs and anywhere else families can come to have a good time. Enjoy and God bless you all.