1, performance improvement

-- Added text to speech feature

- added audio toolbox features
- fixed asr crash bug

We've added new features like speech-to-text, audio format conversion, and the ability to search for specific content within your audio files.

add sound event search feature

importing audio bugs fixed

The UI has been changed to make audio file management more convenient.

1. add audio effects function, such as pitch shift, variable speed, equalizer, reverb, etc.
2. enhance search function
3. fix some bugs

1. fix a bug playback stopped when screen turned off.

1. pitchshift  function added.
2. import audio file function added.

1. Remove the in-app rating function
2. Remove the function of recommending our other apps in the app

1. iCloud support

1. minor bug fixed

1. Add gestures to the audio waveform