Numark Industries DM 1835X User Manual

Page 12

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DM 1835X

2 Channel Mixing

After you feel comfortable syncing up the Beatkeeper,

you're ready to mix. Mixing with the Beatkeeper

has three parts: syncing to the music (which

you've done), aligning the tempos, and aligning

the beats. Once these three things are done, you will

have a perfect mix. No more guessing, tapping, or

embarrassing fades.

Choose another music selection and start it on your right

channel. Sync up the first song as described in the last

section. With the first selection synced (Sync Lock LED

illuminated), sync up the right channel the same

way you set up the left.

As the second Sync Lock LED illuminates, a

new dimension of DJing begins: V I S U A L


The bar graphs on the top of the Beatkeeper

have now been activated and are updating


NOTE: In order to perform a mix which is tracked by the

Beatkeeper, both channels MUST be synced. This is

indicated by the yellow Sync Lock LED being lit for both


In order to create the perfect mix, your goal is

to keep both bar graphs as close to centered

(green or yellow) as possible.

First, align the top graph, the Tempo Difference Graph.

This graph indicates how close the two BPMs are to each

other. If they are exactly the same tempo, the green LED in

the middle will light up. If one song is faster than the other,

the bar graph will shift towards the faster song. If the

Tempo Difference graph is not centered, adjust

the speed of one of the inputs using the pitch

control. For example, if the Tempo Difference graph has

a red LED illuminated closer to the right channel of the

Beatkeeper, the right channel is faster than the left

channel, either slow down the right channel, or speed up

the left channel.

If the opposite is true, the Tempo Difference Graph has a

red LED illuminated on the left channel, indicating the song

on the left channel is faster than that the right channel,

either slow down the left channel, or speed up the right

channel.The second step involves the bottom graph, the

Beat Offset Graph. This graph indicates how close the

individual beats are. Both BPMs may be the same but the

beats may not be in sync. This is often described as the

“ping-pong” effect. If the beats are matched, the green

LED in the middle lights up. If the beats of one input are

earlier than beats of the other input, the Beat Offset Graph

will shift toward the song with the earlier beats.

To align the Beat Offset Graph when using CD

Players, adjust the appropriate pitch bend. If

you are using turntables, hold or apply pressure

to the record/turntable and then release to

“shift” the beat.

If the Beat Offset graph is shifted toward the right channel

either use the minus (“-”) pitch bend for the right channel

CD player (with vinyl, apply pressure to slow the turntable)

or use the plus (“+”) pitch bend for the left channel CD

player (with vinyl push the turntable ahead).

Intuitively, if either bar graph is shifted towards a channel,

this indicates that the song on that channel is “ahead” of

the other one. Either the tempo is faster (top graph), or the

beats come sooner (bottom graph).

When both bar graphs are in the green you are

ready to perform your mix!

Don’t forget you can always resync to the beat, if it ever

shifts off, by tapping the Beat Assist button.

If the beats start to drift, you'll be able to easily adjust the

music before your audience can hear it. No other beat

counter or automatic mixer can give you the power to make

a more accurate mix!

NOTE: The Beat Offset bar graph either indicates beat-

to-beat offset, or beat-to-halfbeat offset, whichever is

closer. This allows the DJ the option of mixing on the beat

or on the half beat.

Numark - The Proven Leader in DJ Technology

©1997 Numark Industries