SoundWriter is free sound recording and playing app.
background recording, sharing file,
file format support wav / m4a.
Functions
- background record / play sound
- display wave visualizer
- sharing other app ( dropbox, mail, etc... )
- support file format wav / m4a
- selectable sampling rate 8,000 Hz / 44,100 Hz / 48,000 Hz
- edit waveform（Audio amplifier）