The vivo X300 Ultra will bring a host of improvements compared to its predecessor, and while we've mostly focused on the photographic side of them, there's another side to it: audio. Vivo's Han Boxiao took to Weibo to tease some substantial improvements to the audio capture and audio reproduction of the upcoming global flagship. The first has to do with enhancements to how the phone uses its four available microphones. They'll combine spatial recording with noise reduction and AI smarts to isolate voices and enhance the sound recording.

Below is a screenshot Boxiao shared from the X300 Ultra's new camera app. The phone will be able to capture audio directionally, tune recording to the phone's front or back, have noise reduction (from 0 to 100%), and even gain adjustment (from -100 to 100), which is something of a pro feature.

The X300 Ultra is getting a bigger and smarter top speaker. It will reportedly be nearly 3 times larger with a cavity of 0.8cc. That's around a 167% increase in physical size. Vivo has also boosted the amplifier by 20%. The result, per Boxiao, is a nearly 4dB improvement in the lower frequencies around 300Hz, and a wider high frequency by 3kHz. That means the top response could extend from 17kHz to 20kHz. Vivo has reportedly reworked the entire upper right side of the phone to serve as a speaker enclosure.

These changes suggest a mix of realistic hardware-based claims and a touch of marketing speak. We'll know when we test the speakers in-house. The upgrades aim to elevate the X300 Ultra's audio capabilities to match its photographic prowess, potentially setting a new benchmark for smartphone sound systems.