A complete loudness control solution for OTT/Music Streaming services.

It promotes ‘safe listening’ for mobile users and eliminates dissatisfying
factors when you play content which has loudness differences.


Your platform hurts your listeners’ ears

”Hey, the volume difference episode to episode I move to the next video, the ads are so loud my ears hurt.”

“I can’t believe I pay for this service. The volume is ridiculously unstable. PLEASE deal with audio quality!”

”It’s hard to understand the episode because I can not hear the conversations.”

“The volume is lower than other apps. ”

“Okay..the ads are louder that the shows. Are you kidding?”

What is Loudness problem

No one likes to offend their ears by loudness difference while listening content to content or content to ads.
If your listeners rip their earbuds out and throw them ground? Then, that is why loudness is a problem.

What is loudness?

Loudness is the subjective “feeling” of how we perceive the strength of sound.

What caused it?

Unlike TV broadcasting there is no regulation for loudness normalization on OTT and Music Streaming services so each servcie platforms have different loudness.

As content produced for TV broadcasting are re-transmitted to mobile phones, the ‘Targeted loudness’ applied to these smartphones are unfit.

Not all content creators are audio experts, nor are experts at controlling the volumes with tools they use. 

Advertisers aim at even louder sound than the main programs to catch the interests of their viewers and listeners.

Make listening safe

Stop blasting listeners’ ears by loudness changes between content.
Start creating a balanced listening experience across your platform.
Our solution normalizes every content’s loudness and protects your ears from sudden and unwanted loudness jumps that cause hearing loss.

Choose the way to suit your needs

Loudness Server-Tools 

Transferring pre-consistent of loudness for all content on the server.

Loudness Server-Client

A ‘server’ generates the metadata of the measured loudness, and the ‘client’s platform’ utilizes this metadata to normalize the loudness of the content in accordance with the target loudness.

Loudness Stand-alone

A stand-alone solution for live-streaming or live broadcasting and hardware devices where the metadata is not allowed.

Key Features

Metadata Driven

  • Eliminates additional transcoding process. No damage to the original content.
  • Easily reset and control the ‘Target Loudness’ which adapts to the user’s listening environment in real-time. (CTA-2075 standard is ready.)

Device Specific Loudness Control (DSLC)

  • Enables the Loudness Stand-alone to operate on built-in speakers in mobile devices that respond poorly to low frequency.

Specific Service Modes

  • Provides diverse options depending on platforms or services.

Simple integration with ELEQ, Loudness Normalization, and Smart EQ into a single audio SDK.

Where to apply?

Wherever sound goes.
Our technologies can be built into a wide range of platforms and devices.

Media Platforms

Immersive sound quality for music, movie, broadcasting, sports live-streaming, and OTT.

  • Video Streaming(OTT), Music Streaming, Live Streaming, Broadcasting
  • e.g) Youtube, Spotify, Twitch, Sinclair
Hardware Devices

For built in-audio mode on
smartphones, tablets, laptops, TVs, earphones/headphones, speakers.

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