SonidoenRed

Training
Comparator
Resources
Blog
Forum

Log in

SonidoenRed

Create your account to save your progress.

Explore

Training Resources Blog Forum

Tools

Comparator

Support

Contact Legal notice

Appearance

Language

Sign up Log in

Black Friday 2026 · Friday, November 27 · 25 days to go

See real deals only

Training
Acoustic

Initial Quiz

Initial quiz of knowledge in acoustic.

15 questions

Question 1 of 15

What phenomenon occurs when sound bounces off a rigid surface?

Refraction Reflection Absorption Diffraction

When sound passes through a material and loses energy by converting it into heat, we call it...

Diffusion Resonance Absorption Isolation

What is the phenomenon where sound "goes around" an obstacle or passes through an opening called?

Diffraction Refraction Echo Reverberation

The change in sound direction when passing from one medium to another (e.g., from hot to cold air) is...

Diffusion Refraction Resonance Reflection

Which technique aims to distribute sound uniformly in all directions within a room?

Isolation Absorption Diffusion Cancellation

When an object vibrates with great amplitude upon receiving a specific frequency, it occurs...

Diffraction Resonance Soundproofing Refraction

The goal of preventing sound from passing from one room to another is known as...

Acoustic treatment Diffusion Sound insulation (Soundproofing) Absorption

Improving the internal sound quality of a room (controlling reflections and echo) is...

Acoustic treatment (Conditioning) Soundproofing Resonance Refraction

What unit is commonly used to measure intensity or sound pressure level?

Hertz (Hz) Decibel (dB) Meter (m) Joule (J)

What do we call the clarity with which speech is perceived within an enclosure?

Reverberation Gain Intelligibility Loudness

Soft and porous materials (like rock wool) are excellent for...

Reflecting sound Heating the room Generating resonance Absorbing sound

What is the name for the persistence of sound in an enclosed space after the source has stopped?

Reverberation Echo Diffraction Phase

Which of these materials is more effective for sound insulation due to its mass?

Foam sponge Cloth curtain Concrete or Lead Egg cartons

When two waves of the same frequency overlap traveling in opposite directions in a room, they form...

Standing waves Shock waves Thermal diffractions Absolute silences

The specific frequencies at which a room tends to vibrate due to its dimensions are called...

Pure tones Normal modes Harmonics Musical octaves

SonidoenRed

Training, resources and guides for sound engineers who want to improve their skills and knowledge.

Do you read us often? Add us on Google

Sound

Training
Blog
Forum
Comparator
Resources

About

Contact
Legal notice
Terms of use
Privacy policy
Cookie policy
Manage cookies

Social

We use cookies

We use strictly necessary cookies for the site to work and, with your consent, Google Analytics analytics cookies to understand how the platform is used. We do not use advertising cookies. Cookie policy.

Cookie preferences

Enable or disable non-essential categories according to your preferences. You can change your choice at any time from the «Manage cookies» link in the site footer or from the cookie policy.

Strictly necessary

Always active

Essential for the site to work: user login session and protection against CSRF attacks. They cannot be disabled.

Analytics

Disabled Enabled

Google Analytics, for aggregate usage statistics, in order to understand how the platform is used and improve it. They are not used for advertising.