Since then, Redmi has officially announced that it will be unveiling the Redmi K40 series via a live video on February 25 at 19:30 p.m. According to the company, this event is a "double flagship" live event. This leads to speculation that the Redmi K40 and Redmi K40 Pro will be launched at the event. Today, Redmi also announced that it is completely improving the sound quality of the Redmi K40 series. This series comes with Dolby Atmos support. Whether it's the built-in stereo speakers or headphones, it opens up sound from all directions, according to the company.
The working principles of Dolby Atmos of the Redmi K40 series
In addition, Redmi demonstrated the principles of Dolby Atmos technology. He emphasizes that dual speakers can create surround sound in all directions. With Dolby Atmos, the device can deliver any sound effect as a single sound element. This audio output is independent of other parts of the audio track. Whether it's a child screaming or a helicopter taking off, content creators can precisely isolate a sound effect. Users can process sound elements anywhere in three-dimensional space without interference.
Headsets and built-in speakers of mobile devices are mostly left and right channels. In order to create a realistic perception of pitch and surround sound, a two-channel mobile system must first have a head-related transfer function (HRTF). HRTF describes how incoming sound sources from different places around us reach our ears.
Depending on the position of the sound radiation, one ear may lag behind the other to perceive the sound. This means that the sound quality can be slightly different on each ear. These differences come from interference on the listener's head, torso, and outer ears.
Dolby Atmos improves sound quality
Dolby Atmos streaming supports up to 128 simultaneous sound objects. It also contains metadata describing the location of each object in space. In addition, the Dolby Atmos processor on a mobile device can apply different HRTFs to metadata to reproduce spatial information in a stereo signal. When listened to through headphones, the stereo soundtrack can accurately simulate theater sound effects (including overhead sound effects), creating an immersive and immersive experience.
Additional processing is required to reproduce the same experience using the device's built-in speakers. In addition, the speakers will produce a natural phenomenon of "cross talk" in our ears, which does not contribute to the simulation of multiple channels. The Dolby Atmos processor can remove this crosstalk and then apply HRTF to create a multi-dimensional sound field and the effect of moving sound objects.
