Audio Recorder - WAV, M4A

A recorder app developed in pursuit of simple operation, detailed recording format settings, enhanced playback effects, and spectrum display.
We can expect many uses such as business side such as meeting and entertainment system such as music.
※ Call recording is NOT supported.

The recorded file is saved in the "Download/Recorder_LS" folder on the shared storage.

Recording :
- File format: wav, m4a
- Channel: Mono / Stereo
- Sampling rate: 8000, 16000, 22050, 32000, 44100, 48000 Hz
- Bit depth (wav): 16 bits
- Bit rate (m4a): 64, 128, 192, 256, 320 kbps
- Supports recording in the background.

Playback :
- Quick jump back/forward of playback position. (Time can be set: 1 ~ 30 seconds)
- Setting of playback speed. (0.5x ~ 2.0x)
- Setting of pitch. (± 1 octave)
- Graphic equalizer.
- Supports playback in background.

Spectrum Display:
- Displays the waveform of recording files and a real-time spectrum linked to playback
- Supports zooming in the frequency direction of the spectrum
- Channel display switching (Mix / L / R)
- Frequency axis display switching: Linear, Log
- FFT size: 1024, 2048, 4096, 8192, 16384 (* '16384' is available in the Pro version.)
- Window function: Hann, Hamming, Blackman, None
- Octave analysis: FFT, 1/24, 1/12, 1/6, 1/3, 1, calculation method: Max, Ave
- Pitch meter display.

Transcription screen :
Transcribes speech in the selected audio file.
The results are divided into recognized speech segments and displayed in cells with their start times.
Tap a cell to move to that position.

Other :
- Supports sharing the recording file to other apps.
- Supports change of the recording file name.