About this app

Petralex Pro - This application makes you phone in to the modern multichannel hearing aid. It is equal to programmable, nonlinear hearing aid. Application automatically adjust to you hearing by using embedded hearing test (in situ audio metering). It is containing such features as noise reduction and tinnitus compensation. Applicable for using with standard headset.
Original “Sliding-band processing” of signal allowed to implement following new features:
- fine personal recruitment compensation that recovers frequency-dependent sensitivity to quiet and loud sounds of a healthy ear
- Special binaural correction that recovers normal acoustic scenery even when sensitivity of right and left ears significantly differs
New option 1. Noise reduction with manual control
New option 2. Slackening of tinnitus while using new Petralex PRO amplification formula
New option 3. New Petralex PRO amplification formula which uses special binaural correction that recovers normal acoustic scenery even when sensitivity of right and left ears significantly differs
Enhancement 1. Equal loudness mode – fine personal recruitment compensation that recovers frequency-dependent sensitivity to quiet and loud sounds of a healthy ear.
Enhancement 2. Amplification algorithms such as NAL, Berger, Pogo, Petralex which used with new processing methods makes sound even better
Enhancement 3. Advanced acoustic feedback cancellation (AFC) that drastically increases effective gain
New safety level of you hearing health. Petralex PRO amplification formula based on advanced audio metering. Balanced PRO weakens sharp and loud sounds
New information about you hearing health. Advanced Binaural audio metering – detects comfortable levels of frequency-dependent sensitivity and sensitivity of right and left ears
New level of user comfort 1. Simple migration for Petralex users. Import any of you profiles from Petralex application to Petralex Pro.
New level of user comfort 2. Fine visualization of you hearing testing results (audio metering profile)

Petralex® applications family advantages:
- Simplicity – never using special devices, change batteries and standing wearing discomfort
- No more technical specialist attending for maintenance or setup
- Fast setup for any acoustic scenery
- Wide band signal processing 44.1 kHz provides high sound quality
- Manual switching from built-in microphone to headset microphone and vice versa

* Notice (Disclaimer)
Petralex Pro application is not approved as medical device or software. It has not any appropriate certification and cannot be used as hearing aid with doctor`s prescription
Audiometric test provided in the application is used for application adjustment only and cannot be used as professional audiology test. Audiometric test results in application cannot be considered as medical basis for diagnosis

App Permissions

Allows applications to open network sockets.
Allows applications to access information about networks.
Allows an application to modify global audio settings.
Allows an application to write to external storage.
Allows an application to read from external storage.
Allows an application to record audio.
Allows applications to discover and pair bluetooth devices.
Allows applications to connect to paired bluetooth devices.
Allows an application to broadcast sticky intents.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.