# audio

/ˈɑdiˌoʊ/ (US) · /ˈɔːdɪˌəʊ/ (UK)

Source: https://englishreference.com/word/audio
Updated: 2026-06-19

## Senses

### 1. sound signal or recording

noun · CEFR A2

the sound that you hear from a computer, phone, or television.

For teachers: the sound or sound signal produced by or recorded on electrical or digital equipment. Often uncountable when referring to the signal itself.

- The video was great, but the audio was too quiet to hear clearly.
- The engineer spent hours cleaning up the background noise in the audio to ensure the speaker's voice was crisp and professional.

Usage: Often used as an uncountable noun when referring to the signal or quality of sound.

### 2. a sound file

noun · CEFR B1

a specific piece of recorded sound, like a voice message or a song file.

For teachers: a discrete digital recording of sound. Countable in the context of individual files or clips.

- She sent me an audio of her singing the new song.
- The journalist uploaded several audios from the interview to the cloud for the transcription team to access immediately.

Usage: Used as a countable noun when referring to individual digital clips or files.

### 3. related to sound

adjective · CEFR B1

describing things that involve sound or the equipment used for sound.

For teachers: relating to the transmission, reception, or reproduction of sound.

- He bought some expensive audio equipment for his home cinema.
- The museum provided an audio guide that explained the history of each painting as visitors walked through the gallery.

## Examples

- The audio on this video is very clear.
- The technician spent hours cleaning up the audio from the old interview to make the speaker's voice easier to hear.
- While the visual resolution of the film was stunning, the audio suffered from a persistent low-frequency hum that distracted the audience during the quieter scenes.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.