Effect of frequency response on language learning

Conclusion

The number of errors in the recognition of unfamiliar phonemic contrasts increases with high or low frequency limitation. This increase in errors is not the same for all phonemic contrasts, but the contrasts are affected in the same manner by either limitation. Consonants are affected more, and German shows a much clearer picture than does French. Rank ordering contrasts according to numbers of errors give support to a concept of“order of difficulty” of recognition of foreign phonemic contrasts.