Ringdroid is an Android application for recording and editing sounds, and creating ringtones, directly on the handset. 3GPP/AMR is the format used when you record sounds directly on the handset, but Ringdroid support also WAV and MP3 format.
First two days that Android SDK beta is available for public download and Windows, Mac OS X and Linux can download from Android download page. Other info about Android 0.9 SDK beta you can fund at at the Android Developers’ Site, or if you want to get straight to the bits, you can visit the download page. Another page dedicated to SDK is Developer Forum if you have any questions or something else.Screenshot by anddev.org