Ghoshal has performed songs with a lower vocal range. However, "Metro Times" calls her voice a "sweet and smokey soprano". Her voice has been described as "sweet" with "slight huskiness". In an interview, Ghoshal noted that her voice has transformed from the "girlish tenor" of the earlier days to a more matured texture. Her voice is characterized in the media for being most suitable for higher-pitched renditions, although some critics have said that her voice tends to screech when she reaches a higher note of scale. Similarly, in the book "Confession of a Coward – an Indian Adventure", it was stated that Ghoshal's high-pitched vocals are interesting and impressive, but "certainly take some time getting used to it". Ghoshal has voiced against correcting pitch with Auto-Tune. About her singing and rehearsing style, she has said, "I have a special way of writing the lyrics when it is dictated to me. No matter what the language of the song, even if it is Bengali, I write it in Hindi. I have certain notations and markings to indicate the way it should be pronounced. I feel the Devanagari script is the closest to the phonetics of the language. English letters are not very good for that purpose. Moreover, I listen carefully and try to grasp as much as possible when the lyrics are read to me".