Redmi has officially announced that it will present the Redmi K40 series via live video at 7:30 pm on February 25. According to the company, this event is a Live broadcast “double flagship”. This sparks speculation that the event will see the launch of the Redmi K40 and Redmi K40 Pro. Today, Redmi also announced that it has fully updated the Redmi K40 series sound quality. This series comes with support for Dolby Atmos. According to the company, whether it’s built-in stereo speakers or headphones, it lets everyone out instructions.
Dolby Atmos operating principles of the Redmi K40 series
In addition, Redmi introduced the principles of Dolby Atmos technology. He emphasizes that the dual speakers can produce surround sound in all directions. With Dolby Atmos, the device can process any sound effect as a single audio element. This audio output is independent of other parts of the audio track. Whether it’s a child’s scream or a helicopter taking off, content creators can accurately separate the sound effect. Users can handle audio elements anywhere in three-dimensional space without interference.
The built-in headphones and speakers of mobile devices are mostly left and right channels. To create a realistic height and surround sound perception, a two-channel mobile system must first have a head-related transmission function (HRTF). HRTF describes how incoming sound sources from different locations around us reach our ears.
Depending on the position of the sound emission, one ear can be behind the other to hear the sound. This means that the sound quality in each ear may be slightly different. These differences stem from interference with the listener’s head, trunk and outer ears.
Dolby Atmos improves audio quality
The Dolby Atmos streaming mix supports up to 128 simultaneous audio objects. It also contains metadata that describes the location of each object in space. In addition, the Dolby Atmos processor on the mobile device can apply a variety of HRTFs to the metadata to reproduce the spatial information in the stereo signal. When listening through headphones, the stereo soundtrack can accurately simulate theater sound effects (including superior sound effects), creating a breathtaking spatial experience.
To reproduce the same experience through the device’s built-in speakers, additional processing is required. In addition, the speakers will produce a natural “crosstalk” phenomenon in our ears, which does not contribute to the simulation of multiple channels. The Dolby Atmos processor can eliminate this crosstalk and then apply HRTF to produce a multidimensional sound field and motion effect of the audio object.