Crystal-clear calls in every environment: the evolution of the Galaxy Buds4 Pro

Crystal-clear calls in every environment: the evolution of the Galaxy Buds4 Pro

Anyone who uses wireless earbuds daily knows that frustration well: being on a busy street or in a noisy office and having to repeat the same words several times because the other person cannot hear you. The problem is physical: the earbud microphone is distant from the mouth, making the voice vulnerable to ambient noise that often overpowers its volume.

The bisp&d point of view: beyond the simple microphone

From our technical observatory in the laboratory, we often notice that many manufacturers try to solve the noise problem only via software. Samsung, with the new Galaxy Buds4 Pro, has instead chosen a more complex and structured path: Sensor Fusion. It is no longer a matter of a single sensor "trying" to filter the sound, but of an integrated system that combines different inputs to reconstruct the voice intelligently.

The hardware architecture is the key element. The Buds4 Pro do not rely solely on two external microphones and one internal one, but integrate a Voice Pickup Unit (VPU) based on bone conduction. This sensor detects the physical vibrations of the head during speech, allowing the system to distinguish with millimeter precision what is human voice and what is background noise.

What really changes in the user experience

The leap in quality is not only in noise removal, but in the naturalness of the voice. Thanks to an artificial intelligence algorithm based on Deep Neural Network (DNN), optimized to run directly on the device without consuming too many resources, the Buds4 Pro are able to capture up to 16 times more vocal details than in the past.

The most interesting innovation concerns the management of "fit leakage": the system constantly analyzes signals to compensate for any movement of the earbud in the ear, preventing external noise from leaking in due to an imperfect fit.

In practical terms, this means that consonants are clearer and the nuances of the tone of voice remain intact, avoiding that "robotic" effect typical of many aggressive noise cancellations.

Who it is for and what to check before purchasing

These earbuds are designed for those who live in dynamic contexts: professionals on the move, commuters, or anyone who uses calls as a primary work tool in uncontrolled environments.

Before proceeding with the purchase, we recommend checking two fundamental aspects:

• The ecosystem: To fully exploit the Super Wideband (SWB) connection up to 16 kHz, which guarantees a richer and more natural voice, it is necessary to pair the Buds4 Pro with a Galaxy smartphone.
• The fit: Although the system compensates for leakages, a correct fit remains essential to maximize the effectiveness of Sensor Fusion.

Conclusions

The Galaxy Buds4 Pro represent a significant step forward in the management of wireless communication. By shifting the focus from simple "cancellation" to the "reconstruction" of the voice through multiple sensors and AI, Samsung solves one of the historic limitations of in-ear earbuds, finally making calls reliable even in the most difficult conditions.