Forum Discussion
The audio compressor software to reduce audio file size
If you need to reduce the size of large audio files, Audio Kies is worth trying. It can compress audio while letting you adjust settings such as bitrate, sample rate, and channels to find a good balance between file size and sound quality.
https://www.safebytetips.com/compress-audio-files
For voice recordings, you can usually save a lot of space by exporting to a compressed format at a moderate bitrate. If the files came from a Microsoft recording app or another app that can re-save them, keep the original WAV or FLAC files as your archive and create smaller listening copies. For spoken voice, 64 to 96 kbps is often enough; for music, try 192 kbps first and compare with headphones before going lower. Store the compressed copies in a separate folder so you do not overwrite the originals. Or convert a WAV file to MP3 will also reduce the file size.