{"product_id":"max9814-electret-microphone-amplifier-agc-module","title":"MAX9814 Electret Microphone Amplifier Module with AGC","description":"\u003cp\u003eThe MAX9814 electret microphone amplifier module is a compact audio front-end board with automatic gain control for voice capture, sound detection, and embedded audio projects.\u003c\/p\u003e\u003ch2\u003eTechnical Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplifier:\u003c\/strong\u003e MAX9814 microphone preamplifier with automatic gain control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput:\u003c\/strong\u003e Electret microphone input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e Analog audio signal for an ADC or microcontroller input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Voice recording, sound detection, Arduino, Raspberry Pi, ESP32, and embedded audio projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain control:\u003c\/strong\u003e AGC helps maintain a more consistent output level across changing sound intensity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage contents:\u003c\/strong\u003e MAX9814 microphone amplifier module; microphone and controller are not included unless stated in the listing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility and Setup\u003c\/h2\u003e\u003cp\u003eConnect the module to a suitable supply and analog input. Keep audio wiring short, share a proper ground, and confirm the module pinout before powering it. Output level and noise depend on the microphone, supply, wiring, acoustic environment, and ADC configuration.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat is the MAX9814 used for?\u003c\/h3\u003e\u003cp\u003eIt amplifies an electret microphone signal and provides an analog output for sound and voice projects.\u003c\/p\u003e\u003ch3\u003eWhat does AGC do?\u003c\/h3\u003e\u003cp\u003eAutomatic gain control adjusts amplification as sound level changes, helping keep the output within a useful range.\u003c\/p\u003e\u003ch3\u003eCan I connect it to Arduino or ESP32?\u003c\/h3\u003e\u003cp\u003eYes, when the module supply and analog-output voltage are compatible with the controller input.\u003c\/p\u003e\u003ch3\u003eIs this a digital microphone?\u003c\/h3\u003e\u003cp\u003eNo. It provides an analog audio signal and requires an ADC or analog input for digital processing.\u003c\/p\u003e\u003ch3\u003eCan it record clear voice?\u003c\/h3\u003e\u003cp\u003eIt can provide a useful amplified signal, but recording quality depends on the microphone, placement, ADC, software, and surrounding noise.\u003c\/p\u003e\u003ch3\u003eWhy is the output noisy?\u003c\/h3\u003e\u003cp\u003eCheck the power supply, grounding, cable length, gain behavior, microphone connection, and nearby electrical interference.\u003c\/p\u003e\u003ch3\u003eIs the microphone included?\u003c\/h3\u003e\u003cp\u003eOnly the module contents shown in the listing are included. Check the product images and package description for included parts.\u003c\/p\u003e","brand":"Embeded Studio","offers":[{"title":"Default Title","offer_id":62452165378418,"sku":"ES-MAX9814-MIC-AGC","price":600.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/7935\/3202\/files\/max9814.webp?v=1791309463","url":"https:\/\/embededstudio.com\/products\/max9814-electret-microphone-amplifier-agc-module","provider":"Embeded Studio","version":"1.0","type":"link"}