noise floor

[/nɔɪz flɔr/]
nounpl: noise floors
piso de ruído
1. The level of background noise in a system below which signals cannot be reliably detected
The microphone's noise floor was too high for recording quiet acoustic instruments.
O piso de ruído do microfone era muito alto para gravar instrumentos acústicos silenciosos.
2. In audio engineering, the minimum level of sound that can be recorded before being obscured by system noise
We need to reduce the noise floor to capture the subtle details of the recording.
Precisamos reduzir o piso de ruído para capturar os detalhes sutis da gravação.
3. In signal processing, the baseline level of unwanted noise inherent in any electronic system
The amplifier's noise floor determines the dynamic range of the audio equipment.
O piso de ruído do amplificador determina a faixa dinâmica do equipamento de áudio.
This is a specialized technical term primarily used in audio engineering, telecommunications, and signal processing fields. In Brazil, professionals in music production studios, broadcasting, and telecommunications industries use 'piso de ruído' as standard terminology. The concept is critical in understanding equipment specifications and audio quality standards across both Brazilian and American professional contexts.
Synonyms / Sinônimos
background noise levelnoise baselinenoise thresholdsignal-to-noise ratio floor
Antonyms / Antônimos
signal peakmaximum output levelheadroom

Regional Variations

General Brazilian
piso de ruído
Standard technical term used in audio engineering and electronics contexts
Rio de Janeiro
piso de ruído
Same as general Brazilian, used in professional audio studios
São Paulo
nível de ruído de fundo
Alternative expanded form sometimes used in technical documentation
Portugal
nível de ruído de base
Portuguese European preference for 'nível de ruído de base' in technical contexts

Related Words

signal-to-noise ratiodynamic rangedistortionaudio engineeringdecibelsignal processing

Related Idioms & Phrases

rise above the noise floor
keep signal above noise floor
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