What type of components carry most of the loudness of speech?

The midrange components are primarily responsible for carrying most of the loudness of speech. Speech sounds, especially vowels and consonants, fall predominantly within the midrange frequency spectrum, which is typically between 500 Hz and 4000 Hz. This range is crucial for intelligibility and clarity in verbal communication, as it encompasses the frequencies that the human ear is most sensitive to.

Bass components, while they do contribute some fundamental frequencies in speech, are less critical for loudness and perception of clarity. Treble components, which refer to higher frequencies, can add brightness and detail to sounds but are not the primary carriers of loudness. Echo components do not typically influence the perceived loudness of speech directly, as they relate more to sound reflections rather than the fundamental characteristics of speech sounds. Thus, midrange components are essential for conveying the volume and clarity that make speech understandable in various contexts.