M4A to WAV Converter

Voice memos are the quickest way to record a meeting, a lecture, an idea or an interview, but many transcription services, speech-to-text tools and older audio editors do not accept M4A. Converted to WAV, the recording opens everywhere. For speech, choose 16 kHz and mono: transcription and speech recognition services recommend these settings, and the file stays reasonably small, about 1.9 MB per minute. To get a memo from your iPhone to a computer, share it to Files, AirDrop it, or email it to yourself, then open it here.

M4A also holds music, as AAC audio. To use such a track in a DJ program, a sampler or a CD project, convert it at 44.1 kHz in stereo, the CD standard, or keep its original rate for editing. The WAV sounds exactly like the M4A, because it stores the decoded sound without compression; it is simply larger, about 10.6 MB per minute at 44.1 kHz stereo. Songs bought with copy protection cannot be converted, but ordinary M4A files and recordings can.

M4A is a container made for Apple devices, and programs on Windows, older Android phones, many web forms and some professional tools either do not read it or show only an error. WAV is the format nearly everything understands, so converting is usually the quickest fix when a recording will not play or upload.