Today, true wireless earphones that connect to smartphones via Bluetooth have become a popular trend. However, while people pay attention to convenience, they seem to pay more attention to the sound quality of listening to songs, intelligent control, etc. But who has paid attention to the quality of their calls? During CES2020, Qualcomm, as consumers know it well, launched Qualcomm aptX Voice audio technology, which is mainly used to provide high-fidelity voice call quality for Bluetooth wirelessly connected devices.

A new feature of Qualcomm aptX Voice audio technology is the ability to significantly improve the voice quality of voice calls made using Bluetooth accessories. Qualcomm said that aptX is designed to improve the quality of music streaming over Bluetooth wireless technology, and aptX Voice uses a similar approach to support a high-quality call experience, that is, to provide 32kHz voice call quality within the Bluetooth hands-free specification. Consumers bring a very clear voice call experience.

aptX Voice supports 32kHz sampled audio with a smooth 16kHz frequency response, delivering the high-definition quality consumers expect from the aptX family of audio codecs. In addition, the high definition enabled by aptX Voice technology helps:

1. Provides clearer speech than the narrowband or wideband speech codecs used in the Bluetooth hands-free specification, and improves overall sound quality clarity

2. Improve semantic understanding by more easily recognizing speech, distinguishing confusing sounds, and understanding the semantics of accented callers

3. It is easy to distinguish near-sound words, such as 's' and 'f' syllables that are often indistinguishable in calls

4. Enable consumers to hear the faint voice of the speaker and understand two-way conversations when multiple people are speaking at the same time

5. Better speech understanding in other audio-impaired environments, such as when the caller is using hands-free or when there is background noise