If you purchased the digital version of Aula Internacional Plus 1 (eBook + interactive platform), the audios are embedded directly into the exercises. You can right-click on the audio player to save the file as an MP3 (on desktop browsers) for personal use.
: Some educators and channels have uploaded audio-visual versions of the textbook's activities in dedicated playlists . aula internacional plus 1 audio mp3 download link
That’s the method that works.