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SpyApps - Listen Up: Advanced Noise Filtering Voice Recorder and Amplifier

By Chris Chauvin

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Description

Listen Up lets you listen, filter, and record the world around you. By using a standard (non mic) set of headphones and the iPhone's microphone, you can listen in real time, filter the sound, and selectively record the sound as you hear it.

If you are hearing impaired, this app will help you to hear what you've been missing.

Features include:
- Low and High Frequency Filters and Resonance: Let's you filter out low and high frequency sounds with an adjustable frequency level. Adjust resonance to control the intensification of the frequencies that pass through the filters. The low frequency filter is ideal for removing background hum and wind noises.

- Squelch: Filter out background noises below an adjustable threshold. The noise magnitude is reduced not eliminated.

- Peak: Filter out loud noises above an adjustable threshold.

- Mic Boost: Boost the magnitude of the microphone up to 10x.

Once a listening session is started, you can start and stop recording at any time creating a single recording from multiple record selections.

Recordings can be saved and named and listened to at a later time or emailed to anyone.

WARNING - It is possible to create severe feedback using an open eared set of headphones. Use ear buds for best results. Please be careful when boosting the microphone gain.

NOTE - Using Listen Up to covertly record conversations can have legal ramifications. You are legally responsible for your usage of Listen Up.

TECH - Listen Up filters are full Biquad filters of the Butterworth variety.

REMINDER - You will get bad results from this application using the standard earbuds that come with your iPhone. You must use a 3.5 MM 3-pole set of headphones that keeps the device's external mic enabled. These are standard headphones or earbuds without a microphone.

REMINDER 2 - The iPhone external mic is at the bottom of the device. When using this app, turn your iPhone over to point the mic in the direction of the sound you want to hear.

DEVICES - iPhone only.

What's New in Version 3.1.1

Bad layout in iOS 7.

iPhone Screenshots

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Customer Reviews

Terrible. Hard to use

Downloaded to iphone 5, followed instructions to make a recording and tried to playback. Nothing. Tried again multiple times, even spoke into the microphone while the app said "recording". Nothing.

Can't choose microphone

If you're using earphones that have a built-in mic you are forced to use it. Can't use the higher quality mic built into the iPhone.

bird watcher

Works well for me. Excellent app!

SpyApps - Listen Up:  Advanced Noise Filtering Voice Recorder and Amplifier
View in iTunes
  • $1.99
  • Category: Entertainment
  • Updated:
  • Version: 3.1.1
  • Size: 1.5 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 6.1 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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