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HDSS
HIGH DEFINITION SOUND STANDARD
About HDSS®

NUARL・NE01 series incorporates cutting-edge technologies called “HDSS® = High Definition Sound Standard.”

Developed and put forward by the TBI Audio Systems LLC, HDSS® is a brand new set of technologies that allow for exceptional quality of sound with low cost.

It is a technology that lets earpieces playback sound naturally under any conditions. You can feel the following effects:

Precise playback with no disturbances, great sense of presence with 3D sound, and minimized stress through using the product.

ETL (Embedded Transmission Line) modules are essential to the HDSS® technologies. ETL modules placed behind earpieces, drive units and radiators will keep the pressure and temperature inside to make the sound consistent.

  • How sound reverberates
    inside conventional earphones:

  • How sound reverberates
    inside earphones incorporating
    HDSS® technologies and ETL modules:

Earphones in NUARL・NE01 series are tuned carefully to maximize the benefits of the HDSS® technologies.

The usage of the ETL is patented in main countries including Japan.

Concept 1:
Natural sounding playback

Humans are capable of hearing a wide range of frequencies.
Sounds that we feel comfortable to our ears is those including various frequencies blended together with no alterations.
That is why you feel relaxed when you open your ears in nature and hear the wind, chirping of birds, and rustle of trees mixed all together.
So it would be conceived as more comfortable if you listen to people talking or instruments playing directly in person, rather than recorded and played back.

However, the sound you hear every day is mostly processed through a variety of devices, full of noises and disturbances in sound waves.
Producing satisfying sounds in all ranges of frequencies is therefore very difficult.

We have been trying hard to do that by using more heavy and expensive parts, but the HDSS® technologies proved to be the solution for all these problems.

Concept 2:
Sense of presence through 3D sound system

Conventional surround system utilizes adjusted sound signal and multiple speakers to create stereo sound.
Sound produced this way tends to come across as controlled and engineered.

HDSS® technologies, however, is focused on playing back the given sound true to its original, able to make more natural three-dimensional sounds.

You can immediately realize that when you use our NUARL・NE01 series earphones with HDSS®.

  • How sound reverberates
    inside conventional earphones:

  • How sound reverberates
    inside earphones
    incorporating HDSS® technologies and ETL modules:

Concept 3:
Reducing psychological stress

Natural and distortion-free sound produced with HDSS® technologies put less stress to your eardrums and inner ear organs.

Just like listening to sound from natural sound sources, it’s less tiring even if you use them for extended time.
You can listen to music stress-free when you sit back at your living room or bedroom, as well as at your work as a BGM.

Natural sound wherever you are, whenever you want.

Reduction of psychological stress has been experimentally proven.
10 men and women from 20 to 40 years old have been tested while using conventional earphones and earphones with HDSS®, and psychological stress was shown to decrease by 14.32% ※

※ Test supervised by Alan Chou, licensed psychologist. Master degree in Psychology, University of Pittsburgh.
Director of United Counseling Center in Taiwan. Tested in 2007

Comparison with conventional speakers and earphones

Item Conventional speakers and earphones Products incorporating HDSS®
1 Quality of sound Playback with noises and distortions, devoid of detailed expressiveness. Clear and flat
2 Stress Tiring when used for extended time Not tiring even through use for extended time
3 Playback human voice Unclear and inaccurate Clear and true to original sound
4 Feeling of stir Vague Natural feeling of stir
5 Acoustic field Unclear with limited range of sound Clear sound with wide range
6 Playing back in low volume Unstable with noises Clear and well balanced
7 Vibration Much Little
8 Playback of bass Unclear Clear and natural
9 Necessity of listening room Needed for quality sound Not needed
Quality of sound
Conventional speakers and earphones Playback with noises and distortions, devoid of detailed expressiveness.
Products incorporating HDSS® Clear and flat
Stress
Conventional speakers and earphones Tiring when used for extended time
Products incorporating HDSS® Not tiring even through use for extended time
Playback human voice
Conventional speakers and earphones Unclear and inaccurate
Products incorporating HDSS® Clear and true to original sound
Feeling of stir
Conventional speakers and earphones Vague
Products incorporating HDSS® Natural feeling of stir
Acoustic field
Conventional speakers and earphones Unclear with limited range of sound
Products incorporating HDSS® Clear sound with wide range
Playing back in low volume
Conventional speakers and earphones Unstable with noises
Products incorporating HDSS® Clear and well balanced
Vibration
Conventional speakers and earphones Much
Products incorporating HDSS® Little
Playback of bass
Conventional speakers and earphones Unclear
Products incorporating HDSS® Clear and natural
Necessity of listening room
Conventional speakers and earphones Needed for quality sound
Products incorporating HDSS® Not needed
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