JK Audio BlueKeeper Manuel utilisateur
JK Audio
User Guide
BlueKeeper™
Wireless Audio Gateway
ii BlueKeeper™ Wireless Audio Gateway
Thank You
Thank you for purchasing a JK Audio BlueKeeper Wireless Audio Gateway.
Please read this guide for instructions on setting up and using your
new product.
Getting Assistance
If you have technical or application questions:
In the US & Canada, call us toll free at: 800-552-8346
All other countries dial: 815-786-2929 (M-F 8:30-5:00pm Central Time Zone)
Or, check out our FAQ section for answers to common questions.
Limited Warranty
The BlueKeeper is covered by a 2 year warranty to be free from defective work-
manship and materials. To obtain service, contact JK Audio by phone or email for
return authorization. Once authorized, you will carefully pack and ship the faulty
product and all accessories to us. You will pay for shipping to us and we will pay
for return back to you.
This warranty does not cover damages due to accident, weather, re, ood,
earthquake, misuse, unauthorized repairs or modications, or damages occurred
in shipping, only defective workmanship or materials.
There are no expressed or implied warranties which extend beyond the
warranty here made.
Welcome
Contents
Overview 1
Getting to know your BlueKeeper
2Controls & Indicators
4Inputs & Outputs
2
Getting Connected 6
Bluetooth Wireless Technology 8
FAQs 10
Technical Information 12
Contents iii
Contents
iv BlueKeeper™ Wireless Audio Gateway
HD Voice (Wide-Band Speech)*
Bluetooth Wireless Technology
Send XLR Line Input
Mic/Line Switch
3.5mm Stereo Line Input
3.5mm Mono Line Input
Caller XLR Line Output
3.5mm Stereo Line Output
3.5mm Mono Mic Level Output
3.5 mm Stereo Headphone Jack
Send and Caller Signal Level LEDs
Send and Caller Volume Controls
Universal Power supply with
detachable cord
Features
In the Box
Features
7 kHz
* HD Voice. While standard phone calls have a narrow bandwidth of 300 Hz to 3.4 kHz, HD
Voice calls offer 50 Hz to 7 kHz bandwidth. The additional 1.5 octaves on the low end gives
voice a more natural sound, while the additional upper octave dramatically improves speech
clarity and intelligibility.
Wireless HD Calls. To take advantage of this extended bandwidth, both phones on the call
must support HD Voice, and both phones must be on the same carrier, in coverage areas
that support HD Voice.
Overview 1
Introducing the BlueKeeper
JK Audio combines Bluetooth Wireless Technology with professional audio
electronics in a convenient desktop design. BlueKeeper pairs to your cell
phone like a Bluetooth wireless headset. Connect your favorite microphone and
headphones for dramatically improved sound quality at both ends of the call.
BlueKeeper also pairs to Bluetooth equipped sound cards and music players in
full bandwidth stereo A2DP mode.
BlueKeeper allows you to send mic and line level signals into your wireless
phone while maintaining excellent separation between your voice and the caller.
The stereo output jack provides your voice on one channel and only the caller’s
voice on the other channel. The balanced XLR output jack contains only the
caller’s voice.
The 3.5 mm stereo line input jack allows recordings to be sent into the Bluetooth
device. The 3.5 mm stereo line output jack provides your full bandwidth send
mix on the left channel and Bluetooth caller audio on the right channel. The
headphone output gives you a mix of the XLR input, 3.5 mm input, and Bluetooth
audio.
Ready to go?
The BlueKeeper controls and connectors are clearly marked and ready for
operation. If this is your rst exposure to a hybrid, we suggest that you read the
entire manual to allow you to take advantage of all these features.
Overview
2BlueKeeper™ Wireless Audio Gateway
Getting to Know Your BlueKeeper
3 4 5 6 71
8 9
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10 11
1. Call Button
Press this button to answer an incoming call or to connect your call through
the hybrid or redial the last number.
2. Drop Button
Press this button to drop (hang up) a call.
3. Send 1 Level
Adjusts the signal level that you are sending down the telephone line,
through the female XLR input.
4. Send 2 Level
Adjusts the signal level that you are sending down the telephone line,
through the 3.5mm mini jack input.
5. Caller Level
Adjusts the level of the incoming caller’s audio as it is going out the output
jacks.
6. Headphone Level
Adjusts the signal level coming from the 3.5mm front panel headphone jack.
7. Headphones
The 3.5mm stereo headphone jack contains a mix of both the Send input
audio and the Caller audio.
Controls & Indicators
Controls & Indicators 33
Getting to Know Your BlueKeeper
Indicators Cont’d
8. Blue LED
Indicates Bluetooth Status: lit steady when you are on line with a call or
ashes to show pairing status.
9. Send LEDs
Displays the signal level sent to the caller. The goal is to drive the phone
line audio at levels high enough to avoid phone line noise, but not so loud
as to cause excessive clipping. Adjust the <Send> level controls so that
you rarely see ashes of the red -3 dB peak Send LED. These ashes
should occur only during loud speech bursts. If the red LED stays lit for
extended periods you can assume that much of your speech is being
clipped or distorted. In this case you should lower the <Send> volume
control for the input that is causing the clipping.
The <Send 1> volume control will set the level of any audio connected
to the <Send 1> XLR jack on the back of the BlueKeeper. The <Send 2>
control will set the level of the <Send 2> mini jack on the back of the
BlueKeeper. These two inputs will be combined on the LED meter and on
the Left channel of the stereo output mini jack.
10. Power LED
Lit when unit is plugged in and receiving power.
11. Caller LEDs
Displays the signal level coming in from the cell phone, after the DSP.
This signal level will not change when you adjust the <Caller> knob.
The <Caller> level control knob does not change what you see on these
LEDs. Adjust the <Caller> level control to give you the best signal level
at the <Caller> XLR output or the right channel of the stereo output
mini jack.
You can listen to the combined audio level in your headphones. After
setting the Send levels for the highest level you can send without
distortion as indicated by the LED meter, listen to the audio in your
headphones and set the <Caller> level to match the Send level. Or if your
recording device has a meter, you can use that to match the <Caller>
level to the Send level.
4BlueKeeper™ Wireless Audio Gateway
Getting to Know Your BlueKeeper
Inputs & Outputs
1. Bluetooth Antenna
Do not obstruct.
2. Caller Output
Male balanced XLR output contains only the caller’s voice.
3. Send 1 Input
Female balanced XLR input for signals going out to the cell phone.
Mic or line level input.
4. Mic / Line switch
Sets the front end sensitivity of the Send 1 XLR jack. Set to <Mic> if you
intend to connect a dynamic microphone directly to the Send 1 jack. Set to
<Line> if you are connecting to the output of a mic mixer.
5. Send 2 Stereo Input
3.5 mm <Stereo In> mini jack for signals going into the cell phone.
Line level.
3 4 5 6 7 81 2
5
Inputs & Outputs Cont’d
6. Stereo Output
3.5 mm <Stereo Out> mini jack contains both Send and Caller audio
channels with levels determined by the <Send 1> and <Send 2> level
controls and the <Caller> level control. Left channel contains your local
Send audio and right channel contains the Caller’s audio from the cell
phone.
7. Mono Output
3.5 mm <Mono Out> mini jack contains a mix of <Send 1>, <Send 2>
and <Caller> audio with levels controlled by each of the input control
knobs on the front of the unit. This output is at Mic level and is suitable for
connecting to the Mic input on a computer or other recording device.
8. Power Jack
For connection only to the supplied 9VDC regulated power supply.
Inputs & Outputs 5
Getting to Know Your BlueKeeper
6BlueKeeper™ Wireless Audio Gateway
Setting Up
1. Connect a pair of headphones to the front of the BlueKeeper or mixer.
2. There are 2 ways to set up the audio equipment for your BlueKeeper:
A. One Mic/Headphone (No Mixer): See Figure 6a.
1. Connect a dynamic microphone cable to the <Send 1> jack on the
BlueKeeper. Be sure to set the BlueKeeper <Mic/Line> switch to
the <Mic> position.
2. Connect a stereo cable from the mini-jack <Stereo Out> on the
BlueKeeper to the <Line In> on your computer sound card or
other recording equipment that has a stereo input.
B. Two or more Inputs/Outputs (Mix-Minus Caller): See Figure 7a.
A mix-minus signal is an audio signal that contains a mix of your local
microphones plus any other audio, minus the Caller’s own voice.
Sending the Caller’s audio back to the BlueKeeper will cause an echo,
or feedback.
1. Connect <Caller> to any Line Level input on mixer.
2. Connect Aux (or FX) Send on mixer to <Send 1> on BlueKeeper.
Set the BlueKeeper <Mic/Line> switch to the <Line> position.
3. Connect the supplied DC power supply to the back of the BlueKeeper and
then to an AC power outlet.
Your BlueKeeper is now ready to take calls. You can establish a connection to
your mobile device with Bluetooth Wireless Technology (see pages 8-9) and
place or receive a call.
Place a test call to a quiet location. Set the <Send> level control so that while
you are speaking into the microphone, the Send LEDs on the hybrid light the -20
dB green LED consistently and ash the -9 dB green LED. If you ash the -3 dB
red LED, lower the level. Set the <Caller> control for good recording level of the
caller audio at the output jack.
Getting Connected
Figure 6a
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