Netflix continues to improve its streaming platform on mobile devices. Recently, the company has started to release the new xHE-AAC codec for smartphones and tablets running Android 9.0 or higher.
The novelty promises to bring “studio audio” to the platform as it manages to optimize the quality depending on the internet connection used for streaming. The codec also promises to solve a common problem when consuming content: the difference in volume between the sound of the voices and the sound effects.
According to Netflix, in addition to improving sound quality, the technology also improves sound levels more deeply and provides a better balance when watching movies and series.
In its blog, the company explains that each production prioritizes certain parts of the audio in the sound mix. For example, in the case of action movies, special effects tend to be louder than dialogue, while drama and soap operas have more prominent lines.
The difference in sound between productions usually disturbs users when consuming different content in succession, the company said. After all, to hear the dialogues of an action movie after watching a soap, it is necessary to increase the volume, but without exaggerating, as the explosions are quite loud.
Using volume control and DRC (Range Compression) techniques, Netflix’s new codec can automatically balance audio levels to improve playback on mobile devices. Thus, all dialogs are displayed in the same decibel range, which makes for a more comfortable experience when streaming on the mobile phone.