WISELAB AMP

Voice amplifier app for hearing impaired people

[Online User Manual]

https://ylshop.co.kr/board/free/read2.html?no=781&board_no=3

[Precautions !]

You can use this app for free for 2 weeks after your first subscription. There are no payments or charges during the free trial period.

You can request a refund through Google Play if 48 hours have not passed since your subscription, such as a monthly or annual subscription.

If 48 hours have elapsed after purchase, a refund is not possible due to company policy.

In addition, after canceling a subscription, previous subscriptions are not refundable. If you cancel your subscription, you can continue to use it for as long as you previously paid.

Make sure your smartphone's Android OS version is 8.1 (API 27) or higher. This app is optimized for Android version 8.1 (API 27) or higher.

Some smartphones may also work with lower versions, so please test during the free trial period.

On OS versions lower than Android 8.1, AAudio mode automatically switches to OpenSL ES mode. Notes in OpenSL ES mode are as follows:

-'OpenSL ES recommends using an earphone without a built-in microphone or a Bluetooth earphone/headset.

-If you use an earphone with a built-in microphone, OpenSL ES uses the microphone of the earphone, so when the sound becomes loud, an echo phenomenon (howling) may occur.

If your subscription is canceled during the free trial period, you will not be charged.

If you use a voice amplifier without a doctor's prescription, your hearing may be worse.

Make sure to connect earphones or headsets before starting the app.

It is a 64-channel voice amplifier app that minimizes the delay time between the external sound input and the amplified sound heard through earphones using the latest technology.

If you have hearing loss, use a wired earphone or a Bluetooth earbud/earphone/headset to amplify the other party's sound with only a smartphone.

The self-developed ambient noise reduction function and the audible frequency range are subdivided into 64 channels and controlled to provide optimal sound to those with hearing loss.

In addition, you can have a hearing test sheet, or you can test your hearing in the app to give you a sound suitable for you.

The main features of this app are 64-channel nonlinear precision compression, probabilistic analysis and noise reduction based on feedback cancellation. All of these algorithms are implemented in real time with high sound quality for hearing impairments.

Audio output may vary depending on the user's smartphone type, volume setting, and earphone/headset.

Before installing, make sure that your smartphone's Android version is 8.1 (API 27) or higher.

If you subscribe to this app, you can continue to use the advanced voice amplifier function even after the promotion period.

The subscription method is as follows.

-Subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the subscription period.

-After a subscription, you can manage your subscription and cancel your subscription from the subscription menu of the Play Store settings.

-You cannot cancel the validity period remaining after subscription.

-Selectable subscription is monthly or annual.