HD Audio Recorder is a free, open-source application that offers an easy audio recording experience. This app is optimized for the fastest possible start and helps users not to miss important sounds. With HD Audio Recorder, you can record audio in two formats: M4A format, which is encoded with AAC audio codec, and Waveform Audio File Format (WAV), an audio file format standard for storing an audio bitstream on PCs.

The app allows you to select the sample rate, bitrate (for M4A only), and stereo or mono in the settings. These preferences directly affect the record file size. HD Audio Recorder also offers a range of features that include playback records, display record waveform, rename record, share record, import audio files, records list, add the selected record to bookmarks, and colored themes. With a compact size and friendly user interface, this app is perfect for all Android devices.