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LOUDNESS NORMALIZATION

Complete Loudness control solution for OTT/Music Streaming services.

What is Loudness problem?

Streaming viewers do not expect large volume change between channels and channels, programs and advertisements which are caused by loudness difference

  • ”When I move to the next video, the ads are so loud my ears hurt”

  • ”I use my earphones to comfort myself and when i made the volume louder, I felt my eardrums got destroyed because of the annoying advertisements!!”

  • ”I’m a paid subscriber, but the volume is ridiculously unstable that I want to cancel my subscription. PLEASE improve the audio quality!”

  • “Can you please lower the default volume? It’s still noisy at the lowest.”

  • “The volume is lower than other apps. I hope for improvements”

  • ”I cannot hear the conversations.”

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

Forcontent creators (such as TikTok), it is challenging to control volume with the special tool.

Advertisers want their products to be promoted in louder sound.

How can we solve this problem?

Platforms should take responsibility. 
Try Gaudio Lab’s Loudness SDK! 

How Gaudio Lab’s Loudness SDK works?

In the “Server-Client Architectrue”, the “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. 

Due to this structure, it allows the target loudness to be set independently corresponding differently to each distinctive platforms, end-user’s device, or even the listener’s atmosphere. Addtionally, distortion of the original content will never occur because of the prevention of excessive compression.

Key Features

It’s a loudness management solution with “Server Client Architecture”

  • Unlike common file-based solutions, metadata-based ‘Server-Client Architecture’ technology eliminates additional transcoding process. No damage to the original content.
  • Able to set up different ‘Target Loudness’ on TV and Mobile with a single sound source stored in the server.
  • Can easily reset and control the ‘Target Loudness’ which adapts to the user’s listening environment in real time. (CTA-2075 standard is ready.)
  • High quality DSP technology that tunes the ‘Target Loudness’ within +/-1
  • Optimization guarantees the best quality with- No Clipping, No Pumping, No Breathing, No Coding-Artifact, through algorithms based on psychoacoustical principles and continuous experiments in the actual service environment
  • Compliance with international standards(ITU-R BS.1770, EBU-R128, ATSC A/85, KR TTAK.KO-07.0114, JP TR-B32, AU OP-59)
  • “Server Client Architecture” is optimized for streaming platform
  • “High quality and efficiency built up from various experiences applying solutions to different platforms.”
  • Client only mode: Real time automatic loudness normalization which also corresponds to live streaming scenarios.
  • Different modes that can be applied for music streaming: Album mode, High Quality mode, Original Priority mode.
  • Gaudio Lab’s all SDKs are light, easy to integrate and compatible wide range.

Where to apply?

Any place where sound goes can be applicable.
(support customized solutions)

OTT
(VoD, Livestreaming)

Music Streaming

Smartphones and other acoustic devices

Smart speaker, and bluetooth speaker

Mobility Audio

Video/Music production tool

Video/music/podcast production studio

Hearables
(Bluetooth earphones)

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