mp3 converter Amp3Encoder - Amp3converter is a free tool to encode any audio files to mp3.
Is easy to use and has a file browser included.
Features:
-Encode all kind of audio formats to mp3 file.
-Extract audio from movies to mp3 file.
-Optimized for all devices armv7 and neon extensions.
-Really fast encoding in Android.
-Hi quality and low quality options
SoundMeter is a professional sound meter for your Android device. This application uses the device microphone and measure the sound in decibles. This application is a tool to measure the level of sound produced in front of your Android Device. Normally the built-in microphones are aligned to human voice (300-3400Hz, 40-60dB)
Sound booster - Volume Booster will make your phone sound and overall volume stronger by 30-40%!
Simply press the volume you want to achieve and let the app calibrate your sound settings!
This app will increase your overall sound quality and make your Android phone sound like a professional media player
"Voice Messenger" is an application used to record any sound on your Android device and email it instantly. This application has a simple button to send the recording as an email attachment. It lets you easily share your recording to anybody you want
Call Recorder Deluxe - Never forget what transpired during a phone call conversation. With Call Recorder Deluxe, your phone calls are automatically recorded for you
This is free android app and it records your audio sound and create your playlist. You can create your own visualizer and manage your playlist in playlist setting. You can share your audio by email, soical app, bluetooth, dropbox, Drive, Messaging, Skype, wifi and etc
Xperia Led Music - Xperia Led Music app will help your xperia phone to beat led music effect in any music player.(WALKMAN, TTPod....).
Your phone can blink led even if in Home screen or lock screen.
The application supports almost Xperia device which supported "light beat music effect" as (SP...)
Only xperia SP can be blinked music effect
Most powerful, reliable and secure Call Recorder app. Record any phone call automatically and listen to it anytime. You can set which calls are recorded and which are ignored, synch with cloud and enable other great features
Audio Config - This app help to centralize all audio settings related like various streams volume control, mute-ness and default action to take when headset plug in or plug out in one place. Although most other apps already have something similar, the option to control some of the features are spread around where you need to hunt around for the correct settings to change
Interval Recorder Ad - This app does not aim to compete as a full-featured audio/video recorder. Neither does it aim to compete as a comprehensive 24x7 monitoring audio/video recorder. What it does is to provide a cheap way to do monitoring of say your baby sleeping posture, baby playing alone by themselves etc