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ヘッドフォン Bose QC 20iのPDF Q&Aをオンラインで閲覧またはダウンロードできます。Bose QC 20i 15 ページ。 Acoustic noise cancelling headphones

Bose QC 20i Q&A
Bose
Bose
How is the total noise cancellation in
these headphones achieved?
What is Aware mode?
Are you always able to hear your
surroundings in Aware mode?
What is TriPort
headphone
®
technology?
What is Active EQ?
What is unpowered audio?
For internal and reseller distribution only – Bose confidential.
QC
20
®
®
Acoustic Noise Cancelling
QC
20i
®
®
Acoustic Noise Cancelling
The QC
reduction technologies. They use a sophisticated proprietary electronics
approach to active noise reduction, placing microphones both inside
and outside the earbud. The electronics system senses the sound in
almost any environment and then measures, compares and reacts –
instant by instant – to produce an opposing cancellation signal. New,
patented tip technology from Bose creates a gentle seal at the entrance
to the ear canal that enables full-spectrum noise reduction.
In Aware mode, Bose
microphones within the earbud to pick up surrounding sounds and send
them to the user's ear. This makes it possible for the user to hear what is
going on around them while still listening to their audio. At the same time,
Aware mode enhances the listening experience by maintaining a
minimal amount of noise reduction to block certain background noises
while still allowing the user to be aware of most ambient sounds.
As with any headphone, the signal from the audio source can dominate
the ability to hear your surroundings. If the source volume is at a
moderate level, Aware mode will provide the user with the ability to hear
their surroundings.
Proprietary TriPort
the earbuds and effectively enlarge the acoustic volume, while
maintaining a small size. The result is better audio and active noise
reduction from a smaller, lighter, more comfortable headphone. TriPort
headphone technology is used in all of our consumer headphones.
Active EQ (equalization) involves electronically tuning the frequency
response to closely match the proprietary Bose
headphones. The closer the frequency response comes to matching the
target curve, the more lifelike the audio performance.
The QC
power is depleted or when the unit is powered off. Note: power is
required for Noise Cancelling and Aware modes to operate.
headphones
®
headphones
®
20 and 20i headphones utilize both active and passive noise
®
proprietary technology uses one of the
®
headphone technology utilizes external ports to vent
®
20 and 20i headphones are still able to play audio if the battery
®
2
audio target for
®
CC011967_NRT Nautilus QA R3 3