Monthly Archives: June 2018

Tips To Consider When Choosing A Karaoke Mixer

What Is A Karaoke Mixer?

Mixer – A device that allows one to reduce the sound signals received from different sources. In recording or concert sound reinforcement (a special case of which is karaoke) a mixer combines the signals previously recorded instruments or sound recording with vocals. Also, the mixer performs other functions: source signal matches the level of the dynamic range of the playback devices, enables to control the volume and frequency characteristics of the signals applied to various effects.

Typically, a professional mixing console is a separate device. Karaoke mixers semi-professional use often “embedded” in other devices, most often – amplifiers. Such devices are referred to as “active”. There are tiny enough affordable buying karaoke mixers as BBK KM121, you can turn even an ordinary DVD-player in the karaoke system. These systems are good for both beginners and demanding vocalists recommended a higher level of equipment.

Features Of A Karaoke Mixer

An important feature of the mixer is the number of channels. Each channel is a separate, independent of the other module connecting an external sound source. It can act as a microphone, an audio player, or musical instrument (for example, many professional mixers are equipped with guitar inputs).

Each channel can own settings. By varying the ratio of bass and treble controls, you can improve the sound of your voice. EQ useful for adaptation to the sound characteristics of the room. So, in a small room too high a bass level muffle the vocals and it will be perceived as muffled “slotting”. Reducing the level of bass, you get rid of this problem.

In expensive professional mixing consoles the number of channels may be greater than two dozen. If you want to buy a mixer for karaoke at home, you probably do not need more than 4 input channels (two microphones and two for audio devices). At a higher level models, such as Remix-32, can be up to six mic inputs – such a system makes it possible to supplement the performance solo entertainer live backing vocals.

Characteristics Of Active Mixers

A key feature of powered mixers, combined with amplifiers – power. On this parameter the device must match the acoustic system – columns, with no power, no column should not be working at full capacity. Outset that this is a passive acoustics – have powered speakers have their own amplifiers.

For many singers, aspiring to professional karaoke, it counts the number of sound effects, which is equipped with a mixer. The most popular of them – reverb and echo, supported by most digital mixing consoles. However, advanced models allow for more finely regulate the extent of these effects by hand or use for this factory presets (eg, model Blender-422 ).

“Margin of safety” for the amplifier is approximately 60% of the output power of the speaker. Only in this case you get the best, virtually no distortion of sound quality. For example, if the amplifier power is 120 watts per channel, the ideal match for it will be output from the speakers 60 watts. It is this combination are balanced amplifier-mixer Boost-102, and passive speakers Screamer-08b.

 

What to Know About Stringed Instrument Bow Rehairing

Fine violin bows (as well as fine cello bows and viola bows) are a bit of a menagerie. There’s the frog of course, which isn’t at all derived from real amphibians, plus horsehair, the most important part. And tucked inside frog mechanism is the abalone slide, made from a real mollusk.

This last piece, the thin rectangle of iridescent purple and turquoise, is almost too pretty to hide inside the frog. It is in fact the same material known as Mother of Pearl used in jewelry. But the hardness of abalone is part of why it’s used in the vise-like mechanism in stringed instrument bows – along with several other precision parts – to hold the horsehair in place.

That said it’s the horsehair that gets most of the attention. This is partly due to it being visible and also because the vibration of the hairs sliding or striking the actual instrument strings produce the sound. Any violinmaker will attest that even the best Stradivarius violin is only as good as its bow, a powerful statement on the bow’s importance.

But bows fail and need repair – frequently. Active players might have their bows repaired and rehaired every six months. The reasons for this are sometimes obvious – broken bowhair mid-concert! – or very subtle. The horsehair stretches and breaks, or just fails to engage with the instrument’s strings to produce an acceptable sound.

A few things to look for that indicates failing bowstrings are:

• Broken hairs that are unevenly distributed, such as all on one side. This might be due to how you play or uneven bow tension, but either way it needs fixing.

• Frequent hair breaks, which might be about a bow-instrument mismatch, or the player is trying to force a sound (too firm a grip and pressure on the strings) that isn’t there.

• Seasonal weather conditions, or travel to a different climate, can affect the humidity and relative dryness and length of the bow hair. The dryer the conditions, the shorter and therefore more tense the hairs – perhaps too tense, leading to breakage.

• Bow bugs, the tiny mites that love dark places (inside cases) and the taste of horsehair, can destroy the bow hair in a few short weeks. Sunshine can go a long way to scare them out of a case; hair damage still needs to be addressed.

• Accumulated dirt on the hair, from human hands and sweat or the rosin and ambient dust, can compromise the horsehairs as well. Clean with a soft, clean dry cloth is recommended; veteran violinmakers often advise that detergents and solvents can cause more harm than good.

With the cost of a simple rehair priced at only around $65, players are urged to take their underperforming bows in to a violin shop for examination and a repair. It just isn’t possible for the individual musician to do it at home. The proper workspace and tools are required, not to mention the expertise. With frogs, horses and abalone already involved, it’s quite all right to hand the job over to a professional.