Learning and acquiring a foreign language is a real challenge for an adult where the correct pronunciation has been often overlooked during that process. The answer to the mentioned problem is offered by the phonetic correction of the pronunciation which may help in solving problems of that kind. This paper presents some theoretical issues of the phonetic correction with an emphasis on particular Petar Guberina’s verbotonal method. In order to verify the efficiency of the mentioned method, I carried out an experiment to test the quality of phonetic correction of the Croatian phone [ʎ] on four subjects whose mother tongue is Hungarian. The observation of the subjects showed that their pronunciation relatively improved during the process of 10 correction sessions. as well as it gave an insight into similarities and differences of their progress. Since the experiment was conducted during the pandemic, its implementation took place online, via the Zoom platform. By analyzing the targeted phone [ʎ] in a Praat program, it was measured its duration and values of the second formant. If the correction is successful then it is expected that after the phonetic correction, the duration of the phone [ʎ] would be shortened and the value of the second formant would increase. The results of the conducted experiment indicated some improvement among native speakers of the Hungarian language when pronouncing the targeted croatian phone. However, for even more visible results, the experiment should be carried out under standard conditions in which phonetic pronunciation correction is usually carried out, and for more significant improvements to be shown,then more than 10 correction sessions are necessary. In that case, the improvement is evident not only in the pronunciation of [ʎ] itself, but in suprasegmental features as well. Given the results, it may be said that a verbotonal method is an efficient method of phonetic corrections concerning either segmental or suprasegmental features of the speech.