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DM 1835X

B E A T K E E P E R   T R O U B L E S H O O T I N G

T1 The BPM goes way off when using the search

button on my high tech CD mixer.

Some high tech CD mixers have a cueing feature which

allows you to cue precisely to an exact spot in the music so

you can slam mix. The only problem is that this mode repeats

the first beat of the music at a rate which is unrelated to the

actual BPM of the music. As a result, the BPM goes off track.

The best way to avoid this is to restart the music after a

search, make sure the Beatkeeper is resynced to the music

and then press the Cue button on the CD player. The

Beatkeeper will remember the BPM and track the music

once it starts.

T2 The Beatkeeper doesn't resync to the

downbeat of the music when the music restarts.

Either the downbeat isn't strong enough to be

detected, or the music was started well before a strong

downbeat.   You can easily resync to the downbeat by 

tapping the Beat Assist button once with the beat.  

Alternatively you can cue the music to a strong downbeat so

that the Beatkeeper starts on this downbeat.

T4 Either the BPM display is blank, or it is

noticeably off.

This is common at the beginnings of songs where the

beat is not well defined. To sync simply tap the Beat Assist

button two or more consecutive times on the downbeat.

The Sync Lock LED turns on automatically, indicating that

the Beatkeeper is now tracking the beat of the music.

T5 The BPM display is correct, but the beat LED

isn't flashing on the downbeats of the music.

If this happens tap the Sync Lock button (turning the

Sync Lock LED on) and tap the Beat Assist button once to

make the Beatkeeper track the downbeat. You can also use

this to force the Beatkeeper to track an offbeat for more

advanced mixing.

Alternatively you may sync manually by tapping the

Beat Assist button 2 or more times on the beat.

T6 The Beats per minute number seems to jump

all over the place.

The Beatkeeper is analyzing different sections of the

music to find the BPM. If there is a temporary suspension of

a distinct beat or if the rhythm is too complex, this number

may not follow the actual BPM.

a ) You can wait for a passage of music with a steady

beat for a more accurate BPM indication.

b ) Hit the Sync Lock button once the red beat LED

starts following the beat

or c ) Tap the Beat Assist button at least twice along

with the music beat.

Either method (b or c) will cause the Sync Lock LED to

turn and lock on, indicating that the Beatkeeper is now

tracking the music.

T7 It takes too long for the Beatkeeper to find

the beat on its own.

To speed up the BPM detection process, tap the Beat

Assist button at least twice. At this point, the Beatkeeper will

turn on the Sync Lock LED, immediately providing a BPM

estimate, while resynchronizing to the beat you tapped.

Numark - The Proven Leader in DJ Technology

©1997 Numark Industries

14

      

http://www.numark.com

Содержание DM 1835X

Страница 1: ...Professional Disc Jockey Products DM 1835X STEREO MIXER OWNER S MANUAL NUMARK INDUSTRIES 11 Helmsman Road North Kingstown RI 02852 http www numark com ...

Страница 2: ...DM1835X Numark The Proven Leader in DJ Technology 1997 Numark Industries 2 http www numark com ...

Страница 3: ...on Power supply cords should be routed so that they are not likely to be walked upon or pinched by items placed on or against them When removing the cord from a power outlet be sure to remove it by holding the plug attachment and not by pulling on the cord 9 Object and Liquid Entry Take care that objects do not fall into and that liquids are not spilled into the inside of the mixer 10 Damage Requi...

Страница 4: ...utions Page 7 Front Panel Diagram Page 8 Beatkeeper Diagram Page 10 Beatkeeper Operation Page 11 Rear Panel Diagram Page 16 Connection Instructions and Diagram Page 17 Specifications Page 18 Block Diagram Page 19 Warranty and Service Page 20 Numark The Proven Leader in DJ Technology 1997 Numark Industries 4 http www numark com ...

Страница 5: ...PFL pre fader listen on each channel Headphone monitoring with PFL Program fader Master and 2 Zone outputs Stereo Mono switch on the Master and Zones Balanced Outputs Tape Out for direct recording Powerful stereo headphone output High end performance audio signal 12V BNC light connector theBEATKEEPER Features Automatic BPM tracking of up to 8 input sources 4 simultaneously Accurate digital BPM dis...

Страница 6: ...have included a right angle headhpone adapter with this mixer Just plug your headphones into the adapter and then plug the adapter into your mixer Numark The Proven Leader in DJ Technology 1997 Numark Industries 6 http www numark com ...

Страница 7: ...hout your system Quality shielded audio cables and terminated shielded video cables low capacitance preferred Speaker cables must be 14 gauge minimum 12 or 10 gauge is better Reliability will be enhanced through the use of banana connectors on the speaker wires Observe correct speaker wire polarity If in doubt consult your Numark dealer or a qualified technician Take care to connect only one cable...

Страница 8: ...hen sent out to your amplifier through the Master Output jacks on the rear panel 5 DJ Mic Talkover Switchhen engaged this mutes your music sources from channels 1 4 Releasing it brings you immediately back to full source level It is very useful for announcements 6 Channels 1 4 Input Toggle Switches select which source will be live to that channel based on what you have connected to the rear panel ...

Страница 9: ...e even when the crossfader is not Try that for a neat effect or mix one channel s treble with another channel s bass by cutting the mid and bass on the first channel and the treble and mid on the other channel 16 Master Level This controls overall output level Note that you can select 18 whether you want stereo or mono 17 The Zone Levels control speaker volume for other outputs such as control boo...

Страница 10: ...YED The respective input is currently playing music with this number of Beats Per Minute as determined by the Beatkeeper F DOWN BEAT LED red OFF the Beatkeeper has not yet matched the beat of the respective audio input BLINKING the Beatkeeper has matched this LED to the beat of the respective audio input ON the Beatkeeper is waiting for the music to start on the respective input A B C D G E H I F ...

Страница 11: ...red beat LED will continue to flash on the downbeat and the BPM number will adjust itself to match the tempo of the music This indicates that the Beatkeeper is successfully tracking the beat and will continue to do so throughout your mix If you stop the music you will notice the Beat LED will go solid and the BPM number will remain in memory Once the music is restarted the Beatkeeper will remember...

Страница 12: ...ED 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 eff...

Страница 13: ...form a 3 way mix To perform a 4 way mix just do the same thing again Prepping For A Mix You may also choose to prep the Beatkeeper for an actual mix To prep the Beatkeeper first match the two song s tempos by adjusting the pitch so that the Tempo Difference LED graph displays yellow or green LEDs Next hit the Cue button of your CD player or lift your record needle The red beat LED will remain soli...

Страница 14: ...icating that the Beatkeeper is now tracking the beat of the music T5 The BPM display is correct but the beat LED isn t flashing on the downbeats of the music If this happens tap the Sync Lock button turning the Sync Lock LED on and tap the Beat Assist button once to make the Beatkeeper track the downbeat You can also use this to force the Beatkeeper to track an offbeat for more advanced mixing Alt...

Страница 15: ...e missing the Beatkeeper will require more gradual changes to track properly If you are using a record player or a wide range pitch bend on a CD player note that the Beatkeeper only tracks 11 5 from the tempo at which it was synced You may need to resync the Beatkeeper if you exceed this range while attempting to align tempos You can also manually resync the beat using the Beat Assist button T12 N...

Страница 16: ... tuners even synthesizers or other mixing consoles NOTE Plug mono audio sources into both Left and Right inputs using a Y cable connector 8 Line Phono Input switch Use this to allow line level equipment to be plugged into your phono inputs giving you a total of 8 line input options 9 Phono Inputs on Channels 1 2 and 3 use unbalanced RCA jacks Your input signal is fed directly to the DM1835X s high...

Страница 17: ...rces CD players cassette decks tuners etc can be connected When connecting to an input with a phono line option switch remember to set the switch accordingly 4 Connect the ground wire from your turntables and any other sources that come with a ground to the ground post on the rear panel This will eliminate most common hum and feedback problems 5 Connect your DJ mic on the front left side of the un...

Страница 18: ...feedback CHANNEL EQ Bass 15db 80Hz Middle 10db 1KHz Treble 15db 12 5KHz TALKOVER ATTENUATION Variable from no cut to 16 dB KILL EFFECTS Bass 54dB at 50 Hz 3dB at 400 Hz Middle 44dB at 1k Hz 3dB at 200Hz Treble 53dB at 15k Hz 3dB at 2k Hz POWER CONSUMPTION 20 Watt typical 28 watt with full headphone output BEATKEEPER Sync Lock Mode BPM update rate Every beat BPM accuracy 1 BPM BPM tracking range 50...

Страница 19: ...DM1835X BLOCK DIAGRAM Numark The Proven Leader in DJ Technology 1997 Numark Industries 19 http www numark com ...

Страница 20: ...tside of our factory nor to cases where the serial number thereof has been removed defaced or changed nor to accessories used therewith not of our own manufacture Numark reserves the right to make changes or improvements in its products during subsequent production without incurring the obligation to install such changes or improvements on previously manufactured equipment To place this warranty i...

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