In this era of rapid technological development, wireless connectivity is changing every aspect of life. Hearing aids are no exception, no longer just complex signal processors that amplify speech, but also gradually develop into personal communication devices connected to streaming media. What wireless technologies are used in Fengli hearing aids? How to do Bluetooth direct connection to various devices? Let's take a look!
Connect hearing aids directly to multimedia devices – BT & BLE Bluetooth
Let's take a look at the current Bluetooth technology
Why can the peak force be directly connected to all?
Fengli uses a direct connection chip developed by Sonova, equipped with a variety of Bluetooth protocols, including the classic Bluetooth A2DP protocol (for streaming audio transmission), HFP protocol (for Bluetooth hands-free calling), AirSteams protocol (for watching TV and Bluetooth direct microphone), BLE (for wireless programming and app), network + direct connection protocol (for network + device use in medium and long-distance strong noise environments), BVST binaural voice intertransmission protocol.
● Use classic Bluetooth so that Fengli hearing aid can directly connect to all Bluetooth devices and transmit more data information;
● Hearing aid microphone calls, meaning you can completely free your hands and achieve hands-free calls;
● Although in theory, the classic Bluetooth is more power-consuming than bluetooth low energy, but the powerful chip technology of the peak force is enough to make up for this small shortcoming;
●In addition, when wireless programming and mobile phone APP connection, Fengli hearing aid chooses to use Bluetooth low energy to save power.
Enabling hearing aids to achieve barrier-free listening at medium and long distances under strong noise – Roger technology
2.4GHz is a short-distance wireless transmission technology, which has many advantages: high confidentiality, small size, power saving, long transmission distance, large transmission bandwidth, etc.
Fengli Roger wireless transmission system runs in the 2.4GHz frequency band, used with hearing aids, the chip comes with network + direct connection protocol, no external receiver, smaller size, lower energy consumption, simpler to use, greatly improving the speech recognition rate in strong noise environment and long-distance AC environment.
Enable hearing aids to exchange binaural information—near-magnetic field sensing
The frequency range used for near magnetic field induction (NFMI) data transmission in hearing aids is typically between 3 and 15 MHz. NFMI is versatile and easy to spread around a person's head and body, and this easy-to-spread way allows binaural information exchange between hearing aids. This provides the convenience of synchronizing programs or volume adjustments, as well as the benefits of binaural signal processing between hearing aids.
Fengli has binaural information exchange technology with different data transmission volumes, such as:
● Binaural sync: Synchronize volume adjustments with manual program switching.
● Binaural music: Maintain binaural compression and noise reduction and other parameters synchronization when wearing binaural to ensure a sense of musical balance.
● Speech in binaural cars: Maintain the synchronization of parameters such as binaural compression and noise reduction when wearing binaural to ensure the overall noise reduction and speech intelligibility in the automotive environment.
● Binaural telephone: The application of binaural voice mutual transmission technology, even if the phone does not wear the Bluetooth function can also be listened to in both ears, improve the telephone effect.
● Extremely noisy speech: The application of binaural voice intertransmission technology ensures the clarity of dialogue in a strong noise environment.
● 360-degree omnidirectional speech: The application of binaural voice intertransmission technology improves the speech intelligibility of any direction in front, back, left and right in a noisy environment.
The benefits of wireless technology
Connect directly or connect to other Bluetooth devices in your life through wireless accessories to provide clear, comfortable sound quality for calls, music, and more.
Realize mobile APP connection and control anytime, anywhere.
Wireless programming, remote debugging, convenient for fitters and users.
Both ears are transmitted to each other and both ears are synchronized, and the listening effect of both ears is better.
Provide a clear and fluent listening experience for children's language learning, group classes, conferences and other occasions.
The application of wireless technology in hearing aids includes two parts, one is the communication between hearing aids, and the other is the connection between hearing aids and external devices. Either way, it greatly improves the quality of life of hearing-impaired people, enabling them to better stay connected to the world around them and keep up with the times. Fengli hearing aid, based on the use habits of Chinese users' mobile phone devices (Android system more), uses MFA to directly connect various devices to provide you with the greatest convenience of life.