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Filter, augment, and amplify the sound around you and on your device.
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Spectroid is a real time audio spectrum analyzer app that visualizes sound frequencies from your device’s microphone.
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Get Super Hearing! Record & Boost Sound. Pro Microphone Volume Booster for Audio
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Petralex Hearing Aid App – advanced volume booster & hearing amplifier
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Audio analyzer with RTA SPL (noise level) and sound frequency spectrum.
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Play-Fi - It's Hi-Fi over Wi-Fi!
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Microphone blocker & anti-spyware: one-tap mic off, app control, logs & alerts.
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Best Free EMF Detector, EMF Meter to take meaningful action against radiation
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Ear Scout amplifies sound from the microphone to your headphones
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Use the phone microphone or headset mic as sound amplifier for louder hearing.
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ReSound Smart 3D™ - for ReSound hearing aids
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Turn your Headphones into Sound Amplifier and hear your surroundings easily.
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Boost volume and max your speaker or headphone with this volume booster
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Fast designing of the subwoofer boxes
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Polarity Checking tool for loudspeakers
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Microphone Amplifier amplifies sound from mic to headphones or mic to speaker.
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ReSound Smart – for ReSound LiNX, LiNX2, LiNX TS, ENZO, ENZO2 and UpSmart
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Live transcribe voice to text: caption calls, live videos, podcasts, and more!
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Smart tool with Sound Level Meter and Real time Audio Analyzer
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Hearing Amplifier, Hearing aid app, Hearing test, Volume booster, Volume control