Speech in Noise Testing: Why Conversations Get Hard in Background Noise
Many people do not describe their hearing problem as everything being too quiet. They say they can hear speech, but the words are not clear.
One-to-one conversation may be fine. A family meal, cafe, meeting or restaurant is different. Several voices compete, cutlery moves, chairs scrape, music plays, and the voice you want is suddenly harder to pick out.
A standard hearing test is still important. It tells us what sounds you can detect in quiet. Speech in Noise Testing adds something else: how much separation you need between speech and background noise before conversation becomes clear.
Reviewed by Adam Bostock, Managing Director at Alto Hearing. Last reviewed 13 May 2026.
The short version
- A normal audiogram measures hearing in quiet.
- Speech-in-noise testing measures how well you follow speech when background sound is added.
- It helps explain why two people with similar hearing test results can cope very differently in restaurants, meetings or family gatherings.
- At Alto, speech-in-noise testing is included as part of the Complete Hearing Assessment.
- The result can affect hearing-aid choice, fitting, accessories, follow-up and the advice you are given.
Watch the test
This short video shows how the QuickSIN speech-in-noise test works during an assessment.
Table of Contents
Why hearing in noise can be hard
A standard hearing test measures the quietest sounds you can hear at different pitches. It is a vital starting point, but it is not the same as following conversation around background noise.
Speech is made of detail. Some parts are louder and easier to catch. Others are softer, quicker and easier to lose. Background noise can cover those softer speech sounds, especially consonants. That is why a person may hear that someone is talking but still miss the words.
Restaurants, cafes and family meals are hard because the brain has to separate the voice you want from everything else arriving at the same time. Hearing loss can make this harder, but speech-in-noise problems can also be worse than the audiogram alone would suggest.
A common clinic pattern: someone says they hear well enough at home, then struggles at a family meal. Speech-in-noise testing helps us measure that difference instead of guessing from the audiogram alone.
What QuickSIN measures
At Alto, we use a speech-in-noise test called QuickSIN. SIN stands for Speech in Noise.
The test gives a score called SNR loss. SNR means signal-to-noise ratio. In plain English, it tells us how much louder speech needs to be than background noise before you can follow the sentence.
A lower score means you can understand speech with less separation from the noise. A higher score means you need a clearer gap between the voice and the background sound.
Typical QuickSIN score ranges
0-3 dB
Normal or near-normal speech understanding in noise.
3-7 dB
Mild difficulty. Noisy places may take more effort.
7-15 dB
Moderate difficulty. Groups and restaurants may be noticeably harder.
More than 15 dB
Severe difficulty. Speech may need much more help to stand out from noise.
These ranges are guide categories used with QuickSIN. Your audiologist interprets them alongside your hearing test, case history and listening goals.
How the test works
The test is short. You listen to recorded sentences with background speech babble. The background noise becomes harder as the test continues. After each sentence, you repeat as much as you can.
You are not expected to get every word right. Guessing is allowed. Partial answers still help us understand how much speech information you were able to catch.
What you do
- Listen to each sentence.
- Repeat the words you heard.
- Guess if you are unsure.
- Keep going as the noise increases.
What we measure
- How many key words were correct.
- How much noise was present.
- The SNR loss score.
- How the result fits your symptoms.
The test is usually completed in a few minutes. It is normally tested with both ears together because that is how most listening happens outside the test room.
What the result can change
A speech-in-noise result matters because it can change the advice. It moves the appointment from “you have this level of hearing loss” to “this is the kind of listening help you are likely to need.”
Hearing-aid recommendation
If background noise is the main complaint, the recommendation may need to look beyond basic amplification. Directional microphones, noise management, processing style and comfort all matter.
Technology level
Two people with similar audiograms may not need the same technology. A poorer speech-in-noise score can support a more detailed discussion about technology level.
Accessories
Some people need more than hearing aids in certain places. A remote microphone, TV streamer or other hearing aid accessory may be worth discussing.
Expectations and follow-up
The result can shape how we explain hearing-aid limits, what to practise first, and which situations to review at follow-up.
The result also helps us explain why a person may be doing well in quiet but still find groups exhausting. When the difficulty has been measured properly, people are less likely to blame themselves.
If your result is worse than expected
A poor speech-in-noise score is not a failure. It is information.
It may mean your hearing aids need to be selected and fitted with noisy places in mind. It may mean you need more realistic expectations about restaurants. It may point towards remote microphone support, seating strategies, family advice, or more careful hearing aid fitting and verification.
It can also explain why simply turning things up is not enough. Louder speech can help, but if background noise comes up at the same time, clarity may still be poor.
What if the result is normal?
A normal result is useful too. It may suggest that the main issue sits elsewhere: hearing thresholds, attention, fatigue, sound sensitivity, ear health, wax, language familiarity, listening environment or the specific situations being described.
It can also reassure someone who is worried that every difficult conversation means they need hearing aids. The test is one part of the assessment, not a verdict on its own.
If background noise is your main concern, you may also find our guide to background noise and hearing loss useful.
What to book
If you mainly want a quick first check and are not sure whether anything has changed, SoundCheck may be enough to start.
If you are already struggling in restaurants, meetings, family gatherings or busy places, a Complete Hearing Assessment is the better route. It gives time for ear health checks, full hearing testing, speech-in-noise testing, discussion and clear next steps.
If background noise is the problem
The Complete Hearing Assessment gives enough time for the full picture: ear health, hearing thresholds, speech-in-noise ability, listening goals and whether hearing aids or another form of support is appropriate.
Frequently asked questions
What is speech-in-noise testing?
Speech-in-noise testing measures how well you understand speech when background noise is present. It adds information that a standard hearing test in quiet cannot show on its own.
Is QuickSIN the same as a normal hearing test?
No. A normal hearing test measures the quietest sounds you can detect at different pitches. QuickSIN measures how much separation you need between speech and background noise to understand sentences clearly.
Why can I hear people but not understand the words?
Speech clarity depends on hearing detail, background noise, listening effort and how well the brain separates the voice you want from other sound. Speech-in-noise testing measures that difficulty instead of relying only on description.
Can hearing aids help speech in noise?
Hearing aids may improve speech clarity in noise, especially when they are chosen, fitted and adjusted carefully. No hearing aid removes background noise completely. The speech-in-noise result guides technology choice, fitting, accessories and expectations.
Is speech-in-noise testing included at Alto?
Yes. At Alto, speech-in-noise testing is included as part of the Complete Hearing Assessment, alongside ear health checks, standard hearing testing, discussion and clear next steps.
How long does speech-in-noise testing take?
QuickSIN takes only a few minutes in most assessments. The wider appointment takes longer because the result needs to be interpreted with your hearing test, symptoms and listening goals.
Sources
Sources checked May 2026: Interacoustics Academy: QuickSIN, Etymotic QuickSIN, RNID hearing tests and assessment.