- Receiving Noise
- Transmitting Noise
Passive Noise Reduction: Good for Reducing all Noise Including Voices
Any stereo headset or headphone will provide some level of passive noise reduction, in fact any device that provides a physical barrier to your ear canal will reduce the audio level that you can hear.
Foam and leatherette ear cushions provide comfort plus create and acoustic seal to your ear. Earbuds sit inside your ear and provide greater isolation from external sounds
ACTIVE NOISE CANCELING (ANC): GOOD FOR REDUCING LOW FREQUENCY NOISE
Poly ANC technology uses microphones, one on the back of each speaker that respond well to bass frequencies. The microphones pick up the audio that the user would hear (noise + intended audio) this is fed into the ANC circuitry and inverted then played into the same audio path. This happens very quickly <500 milli seconds which is not perceptible. The result is the noise combined with the inverted noise cancel each other leaving just the intended audio.
Active noise canceling is very good at removing low frequency noise typically 80 to 700 Hz. Which is why you need both good passive headset design combined with ANC to achieve optimal noise canceling performance.
NOISE CANCELING MICROPHONE: GOOD FOR REDUCING ALL NOISE INCLUDING VOICES
A single noise canceling microphone in long boom provides excellent performance for what the person on the other end of the call hears. Bend the microphone boom so it is two fingers from the corner of the mouth for optimum performance.
Poly Savi 8200 Series introduces a unique user adjustable noise canceling feature called close conversation limiting. Close conversation limiting reduces the transmission level of nearby conversations and is configurable with Poly Hub.
ACTIVE NOISE CANCELING: DISCRETE SOLUTION GOOD FOR GENERAL NOISE REDUCTION
Voyager 3200 UC, Voyager 5200 UC and Voyager Focus UC include multiple microphones with unique patented DSP to provide good noise reduction in a shorter boom along with WindSmart® technology to reduce disruptive wind noise for outdoor use.
Voyager 8200 UC includes a boomless design with beam-forming microphones using Poly clear talk technology. The Voyager 8200 UC will provide Poly signature audio quality with dual-paired omni-directional microphones with unique patented enhanced digital signal processing (DSP) to optimize your voice while minimizing background noise.
Voyager 6200 UC has microphones integrated into the front of the neckband to pick up the users voice, which allows either or both earbuds to be worn for calls and or music, enabling maximum flexibility for the user.