What is SNR?
Signal-to-Noise Ratio — how much louder the speech is than the background noise, measured in decibels (dB).
Higher is cleaner. Studio recordings usually reach 30 dB or more; a busy restaurant may sit at 5 dB.
When buying data for a noise-robust model, describing it as noisy is meaningless. The SNR band and the noise type have to be specified, or the data cannot be reproduced.
Related terms
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Noisy Speech
Speech collected under background noise — street, in-car, restaurant, office and other real environments — used for noise-robust models and speech enhancement.
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In-the-Wild Speech
Speech collected under fully natural conditions — no studio, no topic constraints — as close to real usage as collection gets.
Keep reading
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Full glossary
Every term we explain, in one list.
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How to buy training data
Where these terms actually show up, and which ones change a quote.
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Help center
How a project runs, from specification to delivery.
Submit a sourcing request
Tell us the language, the hours, and what the data needs to look like. You will get a real number and a real timeline — not a range. If we cannot source it well, we will tell you that instead.
- Pilot batch before the full run, so problems surface early.
- Consent documentation delivered with the data.
- No medical or clinical data. No recorded telephone calls.