Quite often, we do receive the same question from our reader about karaoke and karaoke machines. So we thought to put all the common questions and answers in a single page for future reference.
- Q:What is CD+G ?
- Q:will any device play a CD+G disk?
- Q:What is Multiplex Disc?
- Q:What is a non-multiplexed disc?
- Q:What is A.V.C.?
- Q:What is echo control?
- Q:What is balance control?
- Q:Reason for two Microphone Inputs?
- Q:What is stereo sound?
- Q:What is mono sound?
- Q:What is MP3G?
- Q:What is digital key control?
Compact disk plus graphics (CD+G) is a CD standard extension (file format). It contains low resolution graphics with audio data on the disk. Most of the karaoke CDs are in this format for its small file size. So when someone plays a CD+G on a compatible device, it shows the lyrics as a video output alongside the audio.
CD player or any similar device (Like DVD player or your computer) will play CD+G disk but you will not be able to see any graphics (karaoke lyrics) on screen. To see the lyrics on screen you must use a CD+G supported player or specific software for your computer.
Multiplex disc contains multiple split channels (Left and right) of each track. So each channel may contain the vocal recording only or the instrumental recording only. This will give the possibility to mute one channel and play the other channel. Auto voice control works on this method.
Non-multiplexed disc does not contain any split track on it. Commonly it only contains the instrumental recording or only the back-up vocals. Auto voice control function does not work with this kind of discs.
Auto voice control is a karaoke player function that activates or de-activates the default vocal on disk (multiplex recording). If the A.V.C. function is turned on, when a karaoke singer starts singing the demo vocal from the disk will be mute. If the karaoke singer stops singing, the demo singer from the disk will be re-activated.
When a singer use a karaoke system, the audio output from the device may re-enter to the microphone and create an echo. Most of the karaoke machine has this feature to control this problem.
There are two channel output for stereo audio. One is right and one is left. “Balance control” is the ability to control each channel individually. For multiplexed tracks it’s a very important feature.
This feature gives the opportunity to connect two microphones to the system. And two karaoke singers may sing together. It’s more fun for family members or friends especially for Childs.
Stereophonic sound (called as stereo) sound is a two independent channel sound system. At least two or more speaker used to give it more natural hearing, as stereo sound can be heard from different direction.
Monophonic or mono sound is a single channel sound system.
MP3+G is a karaoke system file format which is a combination of MP3 and CDG (Compact Disk Graphics). As MP3 file size is smaller than Normal CD file format, a CD can contain more MP3+G data than CD+G data. Also a MP3+G can be played on pc easily.
Digital key control is an advance feature of a karaoke system (hardware or software). It gives the opportunity to match the music key with singer voice (key) by increasing or decreasing this functionality.