Is there an adjective meaning attainable through aural practice? As in "This language skill is more easily attainable through aural practice." That is, the more you listen, the more that skill develops. Is there a single word you could put in the blank in "This is a/an ...... skill"
perceived through or resulting from the sense of hearing
This skill involves auditory learning
You could consider using acoustic which means:
Relating to sound or the sense of hearing:
[Oxford Online Dictionary]
This language skill is more easily attainable through acoustic training.
Acoustic training could accelerate language skills early on in babies... This is one of their key jobs, as between 4 and 7 months of age they are setting up their pre-linguistic acoustic maps.
This might fit...
a skill learnable by an osmotic process.
osmosis /ɒzˈməʊsɪs; ɒs-/ noun
1.the passage of a solvent through a semipermeable membrane from a less concentrated to a more concentrated solution until both solutions are of the same concentration
2.diffusion through any membrane or porous barrier, as in dialysis.
- gradual or unconscious assimilation or adoption, as of ideas
I may use listening skill:
- listening is the conscious processing of the auditory stimuli that have been perceived through hearing.