Numark Industries CDN-88 - Manual (Page 11)

CDN-88 Dual CD Player
- The Leader in DJ Technology
©2000 Numark Industries - 11 - http://www.numark.com
The Beatkeeper™ III and Interlock mode
The CDN-88 includes the latest Numark patented Beatkeeper™ technology. The Beatkeeper™ automatically tracks
beats based upon a combination of frequencies and rhythm patterns in the music. It shows BPM in the display of
each side and outputs 4-count (a.k.a. measure) information about the music in a marching bar graph.
The Bar Graph: Most dance music and rock is set up in 4 beat increments called measures. Many of the features
within the CDN-88 use this information for incredible results. It’s important to understand the basics of how the
Beatkeeper works to effectively take advantage of other advanced features in the unit. The bottom LED is for the 1
st
beat or “Down Beat”. Typically most music starts on the down beat so the unit sets the first beat to where the music
begins. Occasionally this may not be correct or you may wish to reset it. To reset the down beat simply tap the
at
the new downbeat location as the music is playing or in pause.
BEAT SYNC: This button is used for resetting the downbeat and also re-calibrating the BPM. The Beatkeeper
is considered by many to be the most accurate automatic beat counter on the market today, however, it
occasionally may have trouble determining the correct BPM. This will happen when the music contains complex
rhythms or may start without a beat at all. If the BPM showing in the display you know is incorrect or the beat
LEDs are not flashing with the beat you have 2 options to reset the Beatkeeper. The first way is to tap
on
the downbeat and hold for a second. This will tell the unit to search and display the next BPM it finds. If this
doesn’t work you can manually tap
on the beat and the display will indicate the new BPM. The BPM will
be based upon the average of your last 8 taps. The Beatkeeper will then know which beats in the music it
should be using to determine the correct BPM and track them through the song.
Sometimes the unit will be tracking the wrong beat but have the correct BPM. To reset the downbeat simply
tap the
once on the down beat.
Marching Bar Graph: This is the middle graph that compares the music from both units. When the BPM and
down beat match the green middle LEDs will also light up indicating a perfect mix when beat mixing.
INTERLOCK: This button will automatically match the BPM both sides of the CDN –88 and lock them together on the beat. Before
using this function it is important to be sure the Beatkeeper is tracking the correct BPM and is actually synchronized with the beat. In
order to match with control one side is called the master and the other a slave. The master is always the first unit to be playing.
The slave follows the master. As soon as the master is stopped for any reason the opposite side becomes the new master control.
Before using this function it is advisable to activate the key lock since pitch shifts are automatic and can be audible. When interlock is
pressed you will see the BPM display of the slave automatically change to match the master and the pitch indication in the display change the
amount needed to match speeds. During interlock all pitch functions of the slave will deactivate and follow everything you do with the master. All
actions of the slave such as loop functions,
, and PLAY will now also be beat aligned with the master.
• If both units are playing the slave will adjust to match to the nearest beat of the master.
• If is pressed the slave will now start with the next beat of the master.
• If is pressed during , the slave will automatically start the next time the master matches the beat of the slave.
When the slave becomes the master or is released from interlock and still playing, the pitch playing will often be different than the original position of
the pitch slider. The pitch slider will not function until it is brought to the new position. Move the pitch slider in the direction shown in the display.
For example if the display says “INC 4.5%” move the slider in the positive direction 4.5% (increase). If it says “DEC -3%” then move the slider in the
negative direction 3% (decrease). As you get closer to the correct position the indication will reduce until you are at the pitch currently playing. After
this has been achieved all pitch functions will return to the player and pitch can be adjusted as normally. If the unit is stopped for any reason the pitch
will automatically reset to the current position of the slider. Note: Interlock may automatically deactivate when effects are engaged that can
not be beat aligned such as live scratch.
Smart Looping
The Beatkeeper and Looping can work together to create perfect loops every time. In order to work correctly first properly align the Beatkeeper™ on
the beat. To active smart looping hold down followed by at the same time. After this has been done all loop points and stuttering will
play perfectly to the beat of the music.
BEATs not
matched
BPM
From display
BEATs
matched