TTA is supported by very few players and devices. FLAC keeps full quality at about half the size of WAV. TTA is at home in archiving CDs without losing quality; FLAC is the usual choice for archiving music at full quality.
The defaults suit most files. Under Options you can trim the start and end.
This pair uses the compatibility engine, ffmpeg built for the browser, because TTA is not handled by the browser's built-in codecs. It is a one-off download of about 10 MB that the browser keeps, it is slower than the built-in codecs, and it takes files up to 1 GB.