Qualcomm aptX Adaptive audio

2020: The presentation of aptX Voice technology for quality improvement of the speech at voice calls

On January 9, 2020 the Qualcomm Technologies company, Qualcomm Incorporated subsidiary company, provided the voice Qualcomm aptX Voice codec providing high quality of voice transmission with high resolution on the wireless Bluetooth connections. Legibility and clearness of the speech — the pacing factors influencing telephone communication. The aptX Voice codec, functionality of Qualcomm aptX Adaptive audio technology, allows to improve significantly voice quality at negotiations with the help of Bluetooth headsets.

Voice codecs with superbroadband bandwidth are used by providers for quality improvement of the speech in mobile networks, i.e. many users of mobile devices already in practice know that such high quality of voice transmission. At the same time, if for telephone conversations the devices supporting the Bluetooth Handsfree Profile profile are used, voice quality will be not so high. The aptX codec was developed for quality improvement of transfer of music on Bluetooth channel, now it was come to the rescue by the aptX Voice codec which improves voice transmission, providing pure sounding of a voice with a sampling rate of 32 KHZ by transfer on the Bluetooth Handsfree Profile profile.

The aptX technology made breakthrough in listening of music on Bluetooth, having provided unprecedented quality of sounding, and now the aptX Voice codec is ready to make the same with voice transmission. aptX Voice solves a problem of increase in clearness and transmission quality of the speech for consumers who use wireless headsets and earphones more and more, – James Chapman, the vice president and the general manager of the company of division on development of voice, musical and wearable Qualcomm Technologies International technologies tells

The popularity of wireless Bluetooth technology grows, and consumers demand quality improvement of sounding both at voice calls, and when listening music more and more actively. As for the speech, use of narrow and broadband codecs of the Bluetooth Handsfree Profile profile sometimes results in impossibility to distinguish voices, confusion in words, to dialog clogging by ambient noises and, eventually, tires speaking. The aptX Voice codec increases comfort of a conversation, improving the general quality of sounding and reducing loading by speaking, especially at stay in the operator center or other similar situations.

Parameters of the aptX Voice codec (sampling rate of 32 KHZ, a flat frequency response up to 16 KHZ) provide high quality of a voice which consumers got used to expect from a line of aptX audiocodecs. Besides, the aptX Voice technology provides several advantages.

• The legibility and clearness of the speech increases, the general quality of sounding in comparison with narrow and broadband codecs of the Bluetooth Handsfree Profile profile improves.
• Understanding improves, the recognition of voices increases, recognition of the muffled sounds and unusually articulated speech is facilitated.
• The recognizability of words with similar sounds, for example, "with" and "ф" which at phone conversation are often indiscernible improves.
• There is an opportunity to hear the silent speech and to understand the speech when several people at the same time get into conversation.
• Understanding in the presence of other noises improves, for example at a public address system or in the presence of an ambient noise.

The technology is already available on the Qualcomm Snapdragon 865 and Qualcomm Snapdragon 765 platforms, also it will be available in the accessories using a line of the single-crystal Qualcomm Technologies Bluetooth Audio systems which will leave in 2020.