Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizens Wu Yanzu in South China for the delivery of clues! CTOnews.com news on June 27, Feiao officially released Weibo that it has launched a v0.5 firmware update for its FW3 TWS headphones, which supports Bluetooth LDAC protocol, and users can download and upgrade the firmware on their own. The specific updates are as follows:

Add LDAC Bluetooth coding

Increase the speed of connection to iOS App

Optimize the connection stability between aptX adaptive and some mobile phones

Change the default volume of the call. The default volume is 20.

CTOnews.com with relevant instructions:

Because LDAC requires extremely high transmission bandwidth, TWS headphones are dual wireless, and double bandwidth is required in the product (two channels are transmitted simultaneously). Therefore, the firmware released this time can only be said to conditionally support the transmission of LDAC, and not all models are perfectly compatible. If the experience is affected, the LDAC protocol can be turned off.

After firmware upgrade, you need to turn on LDAC through the encoding format of fiio control App before you can use the Bluetooth code (firmware turns off LDAC by default). If audio instability exists for the first time, it is recommended to reset the headset before using it.

Phones that support Snapdragon sound (Snapdragon) Qualcomm processors support LDAC better.

Snapdragon listening technology includes QHS high bandwidth technology and TrueWireless Mirroring (True Wireless Mirror Technology) technology.

QHS high bandwidth technology (full name Qualcomm High Speed) is a new Bluetooth wireless transmission scheme of Qualcomm, which extends Bluetooth transmission bandwidth to 6Mbps and effective bandwidth to 1~1.2Mbps by modifying Bluetooth protocol, optimizing modulation mode and transmitting packet loss information integration technology, so as to provide more space for sound source transmission. In order to meet the high bit rate transmission of LDAC 990kbps.

TrueWireless Mirroring (True Wireless Mirror Technology) technology solves the problem that the traditional Bluetooth audio transmission technology requires relay to take up twice the Bluetooth bandwidth.

Feiao FW3 true wireless headset is equipped with AK4332 DAC chip, has high performance decoding ability and high signal-to-noise ratio of 106dB, low distortion rate to-96dB, and dynamic range up to 102dB.

The Bluetooth chip of the headset is Qualcomm QCC5141, which adopts dual DSP and dual core CPU architecture to ensure the dual stability of Bluetooth audio and system operation.

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