Different linguists therefore take different approaches to the problem of assigning <answer>sounds</answer> to phonemes. For example, they differ in the extent to which they require allophones to be phonetically similar. There are also differing ideas as to whether this grouping of <answer>sounds</answer> is purely a tool for linguistic analysis, or reflects an actual process in the way the human brain processes a language.
What are assigned to phonemes by different linguists?
sounds