In message , Nil
writes:
On 02 Apr 2019, "J. P. Gilliver (John)" wrote
in alt.windows7.general:

Since the editor I use doesn't accept .m4a, I use Pazera's
"extract to WAV" function, and proceed from there.

You might want to look at the free Audacity editor, which can open and
save M4A format. It's not my daily audio editor (Adobe Audition is),
but it's got a good feature set, is in active development, an active
support base, and you can't beat the price.

Audacity does seem to be the default for free audio editing. I really
must look at it sometime!
--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

Correct me if I'm wrong ... everybody else does.