Speech Transmission Index: what is STI and why measure it

Briefly: Sound speech intelligibility STI index is an important indicator of indoor sound quality. 360° Space Acoustic uses measurements and calculations to improve the sound in your space, ensuring speech audio is clear and intelligible.

Sound speech intelligibility The STI index is a key indicator of indoor sound quality. 360° Space Acoustic uses measurements and calculations to improve the sound in your space, ensuring speech audio is clear and intelligible. We use impulse response (Dirac function) to fully correlate objective measurements and subjective perception.

What is STI and how to measure it?

STI (Speech Transmission Index) is a measure of how well speech sound is transmitted in a room. It is measured using special instruments and methods that take into account factors such as noise level, reverberation and other acoustic characteristics of the room.

Why is STI important for sound quality?

STI is an important indicator of sound quality because it directly affects speech intelligibility. If the STI is low, the speech sound will be difficult to hear and may be difficult to understand. Therefore, it is important to measure and improve the STI in the room to guarantee high sound quality.

How does 360° Space Acoustic improve STI?

360° Space Acoustic uses a variety of techniques to improve STI in a room. We conduct a 3D scan of the room to calculate acoustic characteristics and identify problem areas. We then develop and implement a project to improve the acoustics of the room, using methods such as installing sound-absorbing materials, optimizing the location of sound sources, and others.

Frequently asked questions

What is STI?

STI (Speech Transmission Index) is a measure of how well speech sound is transmitted in a room.

Why is STI important for sound quality?

STI is an important indicator of sound quality because it directly affects speech intelligibility.

How does 360° Space Acoustic improve STI?

360° Space Acoustic uses a variety of methods to improve STI in a room, including 3D scanning, acoustic performance calculations and acoustic improvement design.

Can I improve the STI in my premises myself?

Yes, you can improve STI in your room yourself, but it will require specialized equipment and acoustics knowledge.

If you want to improve the sound quality in your space, contact us at 360° Space Acoustic. We'll help you measure and improve your STI, ensuring your speech sound is clear and intelligible.