In today's era of rapid technological development, the innovation of audio technology is also changing with each passing day. Whether it's headphones, speakers or car audio systems, there is a constant quest for better sound quality and listening experience. As a leader in the field of technology, Huawei has been intensively cultivating in the audio field, and through continuous technological innovation, it has brought consumers a more realistic, immersive, and intelligent listening experience.
Break through the bottleneck of lossless audio transmission
To achieve true lossless audio, it is necessary to solve two major bottlenecks in the audio transmission process: insufficient bit rate and poor anti-interference. Traditional Bluetooth technology cannot meet the high bitrate requirements of lossless audio due to its limited bandwidth. High bit rate transmission also puts forward higher requirements for the anti-interference ability of the signal.
In order to break through this bottleneck, Huawei uses the self-developed Kirin A2 chip in its latest generation of flagship TWS earbuds FreeBuds Pro 3. With 8M large-bandwidth modulation, this chip achieves a physical transmission bandwidth of 8Mbps, which is 4 times the bandwidth of traditional Bluetooth. This lays the foundation for 1.5Mbps lossless audio transmission.
High bit rate transmission means higher requirements for signal anti-interference ability. To this end, Huawei has applied Polar code technology in the field of mobile communication to TWS earphones for the first time. This innovative technology makes the transmission anti-interference ability of the FreeBuds Pro 3 2 times higher than that of the previous generation, so as to achieve stable high-bitrate transmission, retain the full details of lossless audio, and ensure a smooth listening experience for users.
Independent research and development of lossless codec technology
Achieving lossless audio transmission is only the first step, and the next step is to complete lossless encoding and decoding on the playback device and headphone side, respectively. For this critical step, Huawei has independently developed the L2HC 3.0 audio codec protocol.
This protocol uses Huawei's proprietary patented technology to perform smooth and efficient bit-level lossless compression and restoration of audio files at high bitrates. Combined with the powerful transmission capability of the Kirin A2 chip, the FreeBuds Pro 3 achieves a true lossless transmission of 1.5Mbps from end-to-end, bringing users a lossless listening experience that surpasses that of CD.
The original dual unit accurately reproduces the notes
Even if lossless transmission and encoding and decoding are achieved, if the hardware unit cannot accurately transmit the audio signal to the human ear, the lossless sound quality will be lost. Huawei's FreeBuds Pro 3 is equipped with a self-developed ultra-perceptual acoustic dual unit.
The new quad-magnet dual-path symmetry structure and Hellbeck magnet array design result in a high-compliance chamber for high-fidelity, high-transient, and surging bass performance. With this innovative unit design, the FreeBuds Pro 3 can accurately restore the details of every note, allowing users to immerse themselves in a listening experience as if they were live.
Intelligent algorithms optimize listening scenarios
In addition to hardware breakthroughs, Huawei also uses intelligent algorithms to optimize the listening experience for users. The FreeBuds Pro 3 is equipped with smart features such as Smart Dynamic Noise Cancellation 3.0 and Quiet Call 2.0.
Smart Dynamic Noise Cancellation 3.0 intelligently adjusts the noise cancellation mode according to the user's environment, effectively eliminating noise interference and allowing users to focus on music. Silent Call 2.0, on the other hand, uses technologies such as voice enhancement and voice tracking to ensure that the voices of both parties are clearly and intelligible, even in noisy environments.
With the support of these intelligent algorithms, the FreeBuds Pro 3 not only leads the pack in terms of sound quality, but also brings users an excellent experience in real-world use scenarios.
Car audio leads to high-quality listening
In addition to innovations in the field of TWS earphones, Huawei has also made outstanding achievements in car audio systems. With HUAWEI SOUND technology, Huawei brings consumers the ultimate listening experience comparable to professional audio.
The HUAWEI SOUND car audio system uses professional-grade tuning and algorithm optimization to restore beautiful bass dive, delicate vocals, and a wide sound field. In blind tests of a variety of luxury models, the HUAWEI SOUND audio system has surpassed the traditional professional car audio system in terms of users' subjective auditory scores.
This achievement is inseparable from Huawei's years of intensive work in the field of acoustics. From the incubation of sound effects algorithms and call recording algorithms in 2016, to the launch of the world's first semi-open active noise cancellation TWS earphones in 2017, to the showcasing of innovative technologies such as four-magnet moving coil units and micro-tablet units in 2022, Huawei has been making breakthroughs in the audio field and leading the development direction of the industry.
future
Through technological innovation, Huawei will continue to make breakthroughs in product forms and scene experiences, bringing consumers a more realistic, immersive, and intelligent listening experience.
Whether it's TWS earphones, smart speakers, or car audio systems, Huawei will uphold the ultimate pursuit of sound quality and use its self-developed advanced technologies to create more amazing audio products. Huawei will also maintain optimized algorithms to provide intelligent listening experience customization for different usage scenarios, so that the charm of music can be fully demonstrated.
Innovation in audio technology requires consistent efforts. As a leader in the field of science and technology, Huawei will continue to forge ahead on this path and use the power of innovation to bring a better listening experience to the world.