Mono:
Mono has audio in single channel often centered in the sound field. There is only one microphone and one loud speaker or (in case of head phone and multiple speakers) channels are fed from common single path. Monaural sound has been replaced by stereo sound in many applications.
Stereo:
Stereo is the reproduction of sound using two or more independent audio channels in a way that creates the impression of sound heard from various directions as in natural hearing. Stereo sound is now common in entertainment systems such as broadcast radio and TV, recorded music and in the cinema. It requires the technical knowledge and skill to record so the skilled manpower is needed.
Differences:
| Basis | Mono | Stereo |
|---|---|---|
| Definition (www.oxforddictionaries.com) |
A monophonic recording. | Sound that is directed through two or more speakers so that it seems to surround the listener and to come from more than one source; stereophonic sound |
| Full Forms | It stands for monaural or monophonic sound. | It stands for Stereophonic sound. |
| Synonyms | Audiophile, bullhorn, cartridge, changer, crystal pickup, bitchbox | Hi-fi, tape recorder, sound system, tape deck, phonograph |
| Antonyms | Biaural, binaural | Monaural |
| Word origin | The word mono was originated from Greek monos ‘alone.’ | The word stereo was originated from Greek stereos ‘solid.’ |
| Requirement | It is easy to record and requires only basic equipment. | It requires technical knowledge and skill to record apart from equipment. It is important to know the relative position of the objects and events. |
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| Cost | It is less expensive for recording and reproduction. | It is more expensive for recording and reproduction. |
| Channel | Audio signals are routed through a single channel. | Audio signals are routed through 2 or more channels to stimulate the depth/direction perception, like in the real world. |
| Uses | It is used for public address system, radio talk, hearing aid, telephone and mobile communication, some AM radio stations. | It is used for movies, television, music players. FM radio stations. |
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