MicW Audio i236L Manuale utente
I236L User’s Manual
i236L
Professional Class 2 Microphone
www.micwaudio.com
CALIBRATION REPORT
Product Information
Model No: i236L
Serial No:
Description: 1/4” Free Field
Digital Microphone with
Lightning Connector
Calibration Data
Sensitivity: dBFS
NoiseLab Correction: dB
Technician:
Date: yyyy/mm/dd
TEST
ENVIRONMENTAL
CONDITIONS
Temperature: 25℃
Humidity: 65%
Pressure: 101.3kPa
Notes:
1. The refernce microphone for calibratiaon is traceable from the Natioinal Institute of
Metrology(NIM).
2. Calibration is performed in compaliance with ISO9001:2008.
3. Measurement uncertainty is +/-0.30dB (95% confidence level with a coverage factor of
2).
4. Frenency response is measured by a comparison method “BSWA-III-RD01-0013”.
5. Sound Level meter Class 2( IEC61672-3) was certified with NoiseLab App by Scantek
USA and NIM Lab.
1. INTRODUCTION
Welcome to the MicW i-Series of professional microphones. MicW has been designing and
manufacturing high quality microphones for testing, measuring and studio recording for
over 10 years. The expertise in diaphragm technology allows MicW to provide professional
products for audio applications.
2. SAFETY INSTRUCTION
The microphone come with a pre-polarized capsule, which is tested in extreme
temperatures and humid environments for more than 24 hours. It is designed to operate
from -20℃ to 50℃ and humidity up to 95%.
3. Power Supply
The i236L does not require an additional battery for power.
4. APPLICATIONS
MicW i236L is 1/2” prepolarized free-field digital measurement microphone. It
has omni-directional pattern. It is an ideal choice for iPhone, iPad mobile (iOS
Lightning or Type C connectors ) devices as external microphone. The i236L
is developed based on BSWA MPA436 array microphone which is widely used
in aerospace and automotive industry.
5. FREQUENCY REPONSE
Typical Frequency Response.
Frequency (Hz)
FRes
(dB)
Frequency Hz)
FRes
(dB)
Frequency (Hz)
FRes
(dB)
16
0.3
250
-0.1
4000
0.1
32
0.7
500
0.0
8000
1.4
64
0.5
1000
0.0
16000
0.2
125
0.2
2000
0.0
20000
-3.7
6. MICROPHONE INSTALLATION
Simply plug the i236L into your lightning connector of the iPhone, iPad device.
7. WARRANTY POLICY
MicW Audio warrants that its Products will be free from defects in materials and
workmanship for one (1) year from the date of purchase by the original purchaser.
8. CE MARKING
The MicW i236L microphones conform with the relevant CE mark directives approved by
the European Commission.
i236L matched with NoiseLab
software on iPhone 14 Pro.
9. SPECIFICAITONS
Microphone i236L
Type
Electret Condenser
Capsule Diameter(front)
13.2mm
Capsule Diameter(back)
10.0mm
Total Length
46.6 mm
Principle of Operation
Free-field
Directivity
Omni
Sensitivity
- 17.19 ± 3.0 dBFS
The analog sensitivity of the capsule
– 28.0 dB re 1V/Pa, or 39.8mV/Pa
Correction Factor
-5.11 ±3.0 dB tested with NoiseLab APP
in MID Range
Equivalent Noise Level
23.0 dB(A)
Upper Dynamic Limit
119.0 dB
Frequency Range
20~20,000Hz (complied with IEC 61672
Class 2 requirements at reference
conditions)
T.H.D
< 3% at 119dB SPL
Operating Temperature
-20℃ ~ 50℃
Power Source
Plug and Play
Polarization Voltage
0 V
Weight
13.9g
Connector
Lightning Connector
10. PACKING LIST
• One piece of i236L microphone
• One windscreen for i236L microphone
• No printed usermanual. Please visit http://manual.bswa.com.cn for the product
information
11. SOUND LEVEL METER APPLICATION
The system of i236L microphone and NoiseLab App on iOS device meet the requirement
and pass the cetification of IEC61672 Class 2 sound level meter.
Requirements:
⚫iOS version 10.0 or higher
⚫i236L microphone
⚫NoiseLab App
STEP 1: Search” NoiseLab” in App store on your iOS device and install the app.
STEP 2: Plug i236L into the iPhone, iPad, then launch NoiseLab
STEP 3: Go to the Calibration menu and change the Correction according to the
CALIBRATION REPORT. Or calibrate the system with a standard microphone calibrator.
a member of BSWA Technology Ltd.
Unit 1003, North Ring Center No.18 Yumin Road, Xicheng District, Beijing 100029, China
Phone: +86-10-51285118
Fax: +86-10-82251626
Email: sales@mic-w.com
Web: www.micwaudio.com
MicW microphones
Product: features and specificaitons are subject to change without notice
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