MCA Audio Tool 1.2.0 APK

Encode/Decode Morse Code to/from audio.
This is created by user requests.
Ad-free.
Keep running in background.
More precise target range.
Support audio frequency up to 24000 Hz. (Warning: High frequency, high volume may damage your equipment. It's your own risk to use it.)

1.1.0 update:
Support 96 KHz sample rate if Android version >= 5.0 and device supports it.
Sample rate can be selected in menu.
This open the audio frequency up to 48 KHz. But you should know most devices cannot make detectable audio above 22 KHz even in extreme close range. And most devices' microphones are not sensitive enough in high frequency.
➣Warning Again: High frequency, high volume may damage your equipment. It's your own risk to use it.


There is a free but ADs version: https://play.google.com/store/apps/details?id=com.erdatsai.morsecodeagent