.3ga
3GPP audio
An audio-only file in the 3GPP mobile container, typically holding AMR or AAC speech. Some Android voice recorders, notably on older Samsung phones, save to it.
Voice and call recordings from older Android phones.
Opens in VLC, mpv, Audacity with FFmpeg
About 3GA files.wav
WAV audioWaveform Audio File Format
Microsoft and IBM’s audio format from 1991. It normally stores uncompressed PCM samples, keeping full quality at the cost of large files.
Recording, editing and mastering, and sound effects for video and games.
Opens in Music, QuickTime, Windows Media Player, VLC, every audio editor
About WAV files