Speech uses many combinations of phonetic units, vowels, and consonants to convey information. Yet, even nowadays, speech or verbal communication seems to be the most efficient and easier way of conveying thoughts. Nevertheless, musical training is a pleasurable approach for aural rehabilitation that can enhance speech and music perception abilities, and further investigations would provide insights into individual-based rehabilitation methods.Before the advent of text messages and email, speech was undoubtedly the most common means of communication. The appropriate degree and variety of the given auditory stimuli should also be investigated, and the reception of feedback that this training method is valid is also warranted. This duration is another important factor that would influence patient compliance and motivation. The minimal training period required to see a benefit has not yet been established. Related factors such as patient age, the type and mode of hearing device, and what kind of a musical program would positively impact hearing aid and/or cochlear implant users are still unclear. Many reported studies lack a well-established control group receiving a non-musical intervention. These previous studies do suggest a promising role of musical training in patients using various hearing devices however, there remains much more to be explored. Better tone recognition and speech perception have also been recognized in speakers of tonal languages. Significant improvements in appreciation of timbre and identification of melodic contours have been observed in cochlear implant users. The existing literature suggests that musical training can improve perceptions, localization, differentiation, and recognition of sound. These benefits of musical training among normal-hearing adults have naturally led to the utilization of musical training for hearing aid and cochlear implant users. Overall, the advantages induced by musical training enhance the neural coding of sounds, in both cortical and subcortical structures, extending to speech sounds. These findings extend to the subcortical level, showing an enhancement of the neural representations of the pitch, timbre, and timing of speech sounds after musical practice that correlates with a better ability to perceive speech in noise. Individuals with vocational musical experience also tend to have better verbal memory. Many studies have validated this hypothesis by showing that musical training improves speech processing at the levels of perception of speech prosody, consonant contrasts, speech segmentation, and syntactic processing. It has been speculated that the cognitive abilities of music and language processing transfer from one to the other through the reorganization of common neural circuits. This process is cognitively demanding, and the neural circuits responsible for both music and language processing are known to be similar. To process music and language, the brain must decode these signals by extracting relevant information from an ever rapidly changing sound environment. Both music and language are unique and essential aspects of human culture that require the recognition, interpretation, and handling of complex sounds that are hierarchically arranged in the order of syllables, words, and sentences in speech and notes, beats, and phrases in music.
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