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Valuable information on NoiseGard

TM

/digital

S1 DIGITAL

 

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Valuable information on 
NoiseGard

TM

/digital

Combination of two NoiseGard strategies

Active noise compensation (ANR, NoiseGard) is based on the principle of
cancelling out unwanted sound using “anti-sound” (phase-inverted
sound). Basically, one must distinguish between two different strategies:
the feedback strategy (FB) and the feedforward strategy (FF).

Operating principle of the two ANR strategies

Feedback ANR 

uses microphones integrated into the inside of the ear cups

to pick up the sound signal near the ear. This sound signal is processed by
an FB control circuit which then calculates the required “anti-sound” and
outputs it via the loudspeaker. This is the “classic” NoiseGard strategy
used in most headsets with analog NoiseGard technology. FB-NoiseGard
works especially well in the low-frequency range.

Feedforward ANR

, on the other hand, uses microphones mounted on the

outside of the ear cups to directly pick up the unwanted noise. The FF con-
trol circuit then calculates the required “anti-sound” and outputs it via the
loudspeaker. Since the FF control circuit cannot become unstable at higher
frequencies, it allows for a strikingly increased NoiseGard performance in
the upper frequency range.

NoiseGard

TM

/digital

 uses both ANR strategies. Apart from the loudspeaker,

each ear cup features its own inner and outer microphone, allowing to
combine the advantages of both strategies. As a result, the NoiseGard per-
formance is outstanding both in terms of the amount of noise attenuation
and the frequency ranges treated.

The NoiseGard

TM

/digital technology of the S1 DIGITAL uses an innovative

approach. By means of the microphones, the current sound situation is
analyzed to fully calculate the optimum control circuit settings. This calcu-

 

FF

FB

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Summary of Contents for S1 NOISEGARD

Page 1: ...S1 DIGITAL...

Page 2: ...ting the headset to a Bluetooth device 11 Using the S1 DIGITAL 13 Individually adjusting the headset and wearing it 13 Switching the headset on off 15 Switching the Bluetooth function on off 15 Adjust...

Page 3: ...level for continuous noise exposure during the working day Exposure to sounds of higher volume levels or for longer durations can perma nently damage your hearing Preventing damage to the product Nev...

Page 4: ...ruction manual especially the chapter Important safety information using the product within the operating conditions and limitations described in this instruction manual Improper use means using the p...

Page 5: ...interface it can be connected to a wide variety of Bluetooth enabled devices Bluetooth wireless technology allows the S1 DIGITAL to communicate with your Bluetooth enabled device e g mobile phone MP3...

Page 6: ...or information on suppliers contact your local Sennheiser partner www sennheiser aviation com Purchase Information www sennheiser com Service Support S1 DIGITAL Manual ON OFF Kurzanleitung Guide rapid...

Page 7: ...7 A A 1 Headband padding 2 Outer NoiseGardTM digital microphone 3 Smart Update button 4 LED Smart Update LED 5 Microphone 6 Inner NoiseGardTM digital microphone 7 Ear pads 8 Contact pressure slide swi...

Page 8: ...o switch G Power OFF ON switch H Power LED I Master VOLUME slide control J Phone button K Hollow jack socket for optional power supply L 5 25 mm jack plug PJ 068 equivalent M 6 35 mm jack plug PJ 055...

Page 9: ...m this type of installation Connect the Adapter P XLR 3 adapter cable to the mounted 3 pole XLR socket Connect the hollow jack plug of the adapter cable to the hollow jack socket on the control unit C...

Page 10: ...the battery capacity is low the headset automatically switches off to protect the batteries rechargeable batteries from total discharge and leakage Replace the batteries or recharge the rechargeable b...

Page 11: ...belt clip Make sure not to squeeze any connection cable Attaching the cable clip The cable clip allows you to attach the headphone cable to your clothing so that the cable doesn t hinder or distract...

Page 12: ...the instruc tion manual of the corresponding Bluetooth device the headset is placed close to the mobile phone approx 50 cm or 19 7 Switch the headset on by setting the Power OFF ON switch G to the po...

Page 13: ...tooth function off see page 15 Press and hold the multi function button until the LED alter nately flashes blue and red Briefly press the Volume button To switch the flashing on during an existing Blu...

Page 14: ...are completely inside the ear pads you feel even gentle pressure around your ears a snug fit of the headband on the head is ensured Adjusting the contact pressure The S1 DIGITAL allows you to choose y...

Page 15: ...er of the mouth The microphone boom is flexible so you can position it individually Bend the microphone boom so that the microphone is placed at the cor ner of the mouth Maintain a distance of approx...

Page 16: ...tooth device is switched off or out of range the LED flashes blue The headset will try for 3 minutes to connect to one of the up to 8 previously paired Bluetooth devices If this fails the Bluetooth fu...

Page 17: ...mono stereo switch F to the desired position Using Smart Update The noise level in the cockpit changes depending on the flight situation Whenever you perceive a change in the noise level e g during ta...

Page 18: ...tment Microphone BIAS microphone supply for mobile phones When used in the cockpit the headset is powered via the intercom If you want to use the headset for making phone calls outside the cockpit you...

Page 19: ...ether your Bluetooth device supports the AVRCP profile Adjusting the volume for connected devices Use the Volume button and the Volume button to adjust the vol ume of your connected Bluetooth device W...

Page 20: ...Bluetooth connection to an audio source e g iPod MP3 or CD player you can use the S1 DIGITAL to remote control the audio source as follows OFF muting is canceled ON muting is activated Button Duratio...

Page 21: ...unction When the mobile phones rings When the mobile phone is switched on does not ring and you do not make a phone call During a call Button Duration Function Accepts ends the call Rejects the call a...

Page 22: ...hes 3 times red The Bluetooth function is switched off Press and hold the multi function button until the LED alter nately flashes blue and red Press the Phone button for at least 5 seconds until the...

Page 23: ...artner Replacing the headband padding 1 Slightly lift the headband padding and carefully remove it from the holder 2 Slide the new headband padding into the holder Replacing the ear pads 1 Grasp the e...

Page 24: ...ce again 11 The Bluetooth function is switched off Switch the Bluetooth function on 15 Headset cannot be paired The pairing does not work Check if the audio source supports the A2DP profile If not use...

Page 25: ...adapter cable 502887 HZH 350 hygiene pads 502389 BTD 300i wireless stereo audio transmitter for iPod and iPhone 502388 BTD 300 Audio wireless stereo audio transmitter for audio video devices Leatheret...

Page 26: ...in the low frequency range Feedforward ANR on the other hand uses microphones mounted on the outside of the ear cups to directly pick up the unwanted noise The FF con trol circuit then calculates the...

Page 27: ...ticular strength of the fully adaptive FF NoiseGard is its ability to cancel broadband noise and not only individual tonal components Cockpit noise consists of broadband noise components and individua...

Page 28: ...ransducer principle pre polarized condenser microphone noise compensating Frequency response 100 Hz 10 kHz Output voltage 20 80 mV Pa adjustable 35 mV Pa factory preset Terminating impedance 150 2 200...

Page 29: ...t assigned 2 Microphone High 3 Microphone Low 6 35 mm jack plug 1 Audio High left 2 Audio High right 3 Audio Low XLR 3 pole socket optional accessory 1 Power supply for NoiseGardTM digital 12 35 VDC 2...

Page 30: ...order to protect the environment only dispose of exhausted batteries WEEE Declaration Your Sennheiser product was developed and manufactured with high quality materials and components which can be rec...

Page 31: ...Manufacturer declarations 30 S1 DIGITAL...

Page 32: ...Sennheiser electronic GmbH Co KG Am Labor 1 30900 Wedemark Germany www sennheiser aviation com www sennheiser com...

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