How often is calibration required for sound level measurements

Theres no calibration within the mic. The calibration file helps the software/app to compensate for frequencies that aren't linear with the mic and provide a linear response in RTA. This mic is factory calibrated to provide linear response however its not linear after 5KHz. The value is slightly off but its within 1dB response

What is the frequency response?

It is limited to the frequency response of the input on your device. The mic itself is full audible range. I know that ipad/iPhone are not full range they roll off around 18k.

I'm planning to use it to capture conversation while shooting hd video on my phone. does it cut out the iphone built-in mic?

Yes it does, and it sounds so much better.

works with samsung glaxy 8 ?

I'm using the MicW i436 with iPhone 6; mainly to monitor aircraft noise in my area. Works well; obtained values are virtually identical with FAA data. No experience with Samsung.

Micw I436 Microphone Silver | Desertcart French Polynesia

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Description

🎧 Elevate your sound game—measure like a pro, wherever you go!

RUGGED ALUMINUM DESIGN - Built to last with a sleek silver aluminum body that withstands daily hustle without compromising style.
OMNIDIRECTIONAL CLARITY - Captures speech, instruments, and ambient sounds with crystal-clear accuracy, making your audio analysis smarter and more precise.
POCKET SIZED POWERHOUSE - Compact and lightweight at just 40g, this mic fits effortlessly in your pocket—perfect for on-the-go sound pros and managers.
UNIVERSAL MOBILE COMPATIBILITY - Plug-and-play with iPhone, iPad, Android devices, and even MacBooks via the 3.5mm 4-pole jack—turn your device into a professional SPL meter instantly.
PRECISION CALIBRATED FOR PRO ACCURACY - Each MicW i436 is factory calibrated to meet IEC 61672 Class II standards, ensuring reliable, distortion-free sound measurements every time.

The MicW i436 is a Class II IEC 61672 calibrated measurement microphone designed for professional-grade sound level and frequency analysis. Its durable aluminum body and compact size make it ideal for mobile use with iOS and Android devices via a 3.5mm 4-pole jack, transforming your smartphone or tablet into a precision SPL meter or real-time analyzer.

Specifications

Product Dimensions	6.5 x 5.8 x 3.8 cm; 40 g
Item model number	I436
Colour	Silver
Compatible Devices	Any android phone or tablet that supports the 3.5 mm 4 ring jack plug, PC sound cards and macbooks, ipad 1 and 2, iphone 3G, 3GS, 4 and 4S, ipod touch
Connector	3.5mm 4-Pole headset interface
Country Produced In	china
Hardware Platform	Ipad, Iphone
Power Source	Corded Electric
Item Weight	40 g

Reviews

P**S

It's good, it's designed well and can be calibrated with the right program/App to a device.

Very good microphone which I was able to check calibration and calibratre to Samsung 10+ mobile phone using free App. You would need to check it's compatible with all mobile device however this simply needs an adaptor you can buy if it does not work first time when plugging into a microphone socket.There exists a 'kit' which includes a short connecting lead which I will need to order something similar to make it easier to fit to phone without removing my protective phone casing each time. I expected this so no problem with Microphone as all similar things plugging into phones can be tricky if casing is thick.Will recommend and buy more :)

2.08.2019

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