Measurement Mic: The AudioControl SA-4140i SPL is a
calibrated, full-range, omni-directional test and measurement microphone for
direct connection to Apple Lightning-connector iOS devices running iOS 6.1 or
later. With the SA-4140i mic and the AudioControl Mobile Tools app, you will be
able to analyze the acoustics of any environment with high resolution and
precision, using the processing power of your Apple Lightning-connector iPhone,
iPod touch or iPad. The AudioCotnrol SA-4140i SPLmakes set up of any sound
processor a breeze, too, letting you see the acoustical spectrum and take
Apple Lightning iOS Compatibility: The AudioControl SA-4140i
SPL is compatible with Apple iOS devices that feature a Lightning connector and
are running iOS 6.1 or later. The microphone's attached 38" Lightning-connector
cable plugs directly into your Apple iOS device's Lightning-connector port. You
will also need the Mobile Tools app downloaded on your compatible iOS device.
Compatible Apple Lightning iOS device include:
- iPhone: 5/5C/5S, 6/6+, 6S/6S+, 7+
- iPod touch: 5th gen, 6th gen
- iPad: Mini 1/2, Air 1/2
Microphone: The SA-4140i SPL microphone has been redesigned with a
1/2" nominal diameter head to minimize the effect of high-frequency diffraction
for the flattest possible frequency response. The microphone also features
increased maximum SPL handling - up to 140 dB SPL.
Audio Output/Power: The SA-4140i SPL is especially suited to work with
an iPhone 7 by providing an audio output jack to send test tones and pink noise
to your phone while running the setup. The mic also includes a charging jack for
the provided AC power adapter. This will keep your iOS device charged during
extended testing. If not using the included AC power adapter, the microphone
will get power from you iOS device, drawing approx. <50 mA.
Mobile Tools App: You will need to download the free
Mobile Tools app from the Apple App Store onto your compatible Apple
Lightning iOS device to gain full capability of the SA-4140i microphone. Using
the app, you get five powerful calibration & measurement modules - including
RTA, FFT, SPL, & Polarity, plus the proprietary DQ-61 Delay module (requires
AudioControl's DQ61 or DQX processor). Now you can test your sound system audio
using a professionally designed test and measurement app. With this microphone
directly connected via the Lightning connector to your compatible iOS device,
and the Mobile Tools application loaded, you will be able to analyze the
acoustics of any environment & sound system, such as your car stereo system or
home theater system.
Note: The SA-4100i calibration data is transferred to the
Mobile Tools app, and it is ready for use as a fine audio analysis system.
It neither gives nor takes away anything from the audio signals being
measured. You will need to manually adjust your systems settings,
connections, and configuration based on measurements displayed on the Mobile
White & Pink Noise Test: The Mobile Tools application allows
you to send out audio test signals from the headphone output jack of your Apple
Lightning iOS device to play through your sound equipment and speakers. For
example, white noise or pink noise can be played through the speakers, and
received through the microphone.
RTA (Real Time Analyzer): The RTA (Real Time Analyzer) will
display a graph that shows the Sound Pressure Level (SPL) measured by the
microphone across the audio frequency band from 20Hz to 20,000Hz. This lets you
see where the measured response starts to decrease in which frequency range.
FFT (Fast Fourier Transform) Analyzer: The FFT graph will
the Sound Pressure Level (SPL) across the audio frequency band 20Hz to 20kHz,
after the Fast Fourier Transform has been applied mathematically to the
microphone measurements. FFT spectrum analysis gives early clues to any audio
distortion in the system. This distortion may occur through speakers being
overloaded, amplifiers going into clipping, mixer signals overloading, and so
Polarity: The Polarity test allows you to analyze the
speakers in your system and determine which of them may be wired out of phase
compared to the others. For example, the positive and negative speaker cords may
be swapped on one speaker, giving rise to an audio cancellation, most noticeable
at the lower frequencies.
SPL (Sound Pressure Level) Meter: This SPL Meter shows the
measured Sound Pressure Level. This is very useful in setting up a system and
determining for example, that the SPL does not reach unsafe levels that may
cause hearing damage.
DQ-61 Delay Module: This proprietary Delay Module allows you
to analyze and adjust the front speaker delay and subwoofer delay in your
AudioControl DQ61 or DQDX system (sold separately). You'll see a display of the
details regarding the front and subwoofer delay adjustment procedures, so you
can make the appropriate adjustments.
Microphone Calibration: The microphone can support two
calibrations for easy recall - Low Range for quiet listening environments & High
Range for those loud moments. Or, the mic can be set to Auto.
App Adjustments: The Mobile Tools App contains various
settings that allow you to maximize the enjoyment of your
microphone-user-experience. Items include Screen Contrast, Microphone Filters,
Display Units, 16 or 24 bit Operation, & Sample Rate.
- Frequency Response: 20Hz - 20kHz ±3dB
- Gain Ranges: 57dBA - 137dBA; 60dBA - 140dBA
- Polar Pattern: Omni-directional
- Power Consumption: <50 mA
- Length: 6.43"
- Attached Cord Length: 38"