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Rapid
Frequency Response Measurements with
the XL2
Do you want to measure the frequency
response of a speaker or audio component, and not have to wait until
the lower frequencies stabilize? Then the MR-PRO and XL2 duet of
instruments offers an innovative and practical solution.
The solution lies in two new MR-PRO test signals
and a new, matching measurement function in the XL2. The two signals
contain a 1-second and a 4-second cyclic pink noise, from which the
XL2 can quickly calculate a stable measurement result in real time.
The trick lies in the design of the test signals; the pink noise
has been shaped so that the frequency response is flat within 1 and
4 seconds respectively. This feature allows the XL2 Analyzer to
determine an accurate frequency response of the device under test
within seconds and with 1/12th octave resolution.
Read more... |
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Quality
Testing digital MEMS Microphones
With the expanding use of voice control, digital MEMS
microphones are finding their way into more and more devices in the
areas of communications, entertainment, mobility, medicine, and the
home. As a rule, several MEMS microphones are installed as an array
in each device in order to facilitate features such as
direction-selective hearing and noise suppression. With the NTi
Audio Microphone Test System, the quality of each of the digital
MEMS microphones as well as that of the microphone array as a whole
can be quickly and reliably measured.
At the core
of the Microphone Test System is the FX100 Audio Analyzer. This
connects to the digital MEMS microphones through the NTi Audio MEMS
Mic Interface Box. Up to 8 digital MEMS microphones can be assessed
with configurable clock frequencies and operating voltages. A
reference loudspeaker and measuring microphone ensure accurate and
reproducible acoustic test signals.
Read more... | |
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View this as web page
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| Also
in this newsletter |
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Quality Testing digital MEMS
Microphones
Webinar: How to Test Digital MEMS
Microphones
Sound Bite |
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| Events |
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Meet NTi Audio at the following Events:
16 - 18 Oct. 2019
AES
2019
New York, US
18 - 20 Oct. 2019
The
Loudspeaker Sourcing Show
Guangzhou, China
26 - 28 Oct. 2019
CIVE-China
Booth No. 2C35
Shanghai,
China
05 - 08 Nov. 2019
A+A 2019
Hall: 10, Booth:
10F23
Düsseldorf, Germany
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Webinar:
How to Test Digital MEMS Microphones |
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NTi Audio cordially invites you to a free live webinar.
It is increasing common to find microphones being used in
communication devices, consumer electronics, cars and household
appliances; especially digital MEMS microphones. Typically, these
are arranged as an array of multiple microphones. Thus the
localization of a person speaking (Beamforming / Noise Cancellation)
can be achieved.
Read more...
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| Sound
Bite |
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What is Acoustic Beamforming?
Acoustic beamforming describes microphones focusing on what you
want to hear.
The purpose is to improve the quality of a
sound source (such as a voice), while rejecting environmental and
background noise.
Read
more!
See all the past Sound Bites and interesting customer responses
in our archive. | |