FAQ - AI Adaptive NR: Adaptive AI Noise Cancellation

Rehear’s AI chip technology incorporates AI Adaptive NR for automatic calibration, replacing current manual adjustments. This reduces R&D and labor costs associated with mass production, ultimately enhancing production efficiency and ensuring quality stability.

Active noise cancellation is one of the common features of true wireless Bluetooth headphones, allowing users to enjoy music and take calls without being disturbed by environmental noise. However, while high-end hearing aids also have the need to listen to music and take calls via Bluetooth, they cannot completely isolate external noise interference.

To address this need, Rehear utilizes AI Adaptive NR technology, which allows users to select the optimal noise cancellation mode based on the environment. This helps users focus on listening to music and phone calls while also eliminating the occlusion effect during conversations when wearing the headphones.

Rehear’s AI hearing compensation technology has undergone rigorous electroacoustic measurement validation, ensuring precise gain compensation,
especially for individuals with mild to moderate hearing loss. Experimental results closely match normative values, confirming the accuracy of compensation effects
and ensuring the precision and stability of personalized audio hearing compensation, ultimately enhancing the auditory experience for users.

Rehear’s acoustic tuning technology significantly reduces in-ear mixing, enhances speech clarity, and minimizes the impact of comb-filtering effects.
Compared to traditional hearing aids, Rehear’s ultra-low latency and high sampling rate technology allow for more precise processing of audio signals, providing a clearer and more natural auditory experience.

Key Differences:

Latency: Traditional hearing aids have a latency of 0.6 to 8 ms, while Rehear achieves only 0.2 ms.
Frequency Range: Traditional hearing aids operate within 8 Hz to 9.64 kHz, whereas Rehear expands the range to 0-22.05 kHz, closely aligning with natural frequency ranges.
Sampling Rate: Rehear’s sampling rate reaches up to 625 kHz, compared to traditional hearing aids at 33 kHz, capturing more audio detail.
Filter Channels: Rehear utilizes 441 filter channels, compared to the 15 to 24 channels found in traditional hearing aids, allowing for more refined audio processing.

As a result, Rehear’s AI tuning technology delivers a more natural and clear auditory experience during conversations in quiet environments, with almost no delay or distortion.

Rehear employs a smart AI compensation algorithm that fundamentally resolves the smearing issue present in traditional multi-channel processing.
In traditional hearing aids signal adjustments across multiple channels, finer signals may overlap between frequency curves, leading to audio distortion or delays.
Rehear’s AI compensation technology effectively avoids this issue, ensuring personalized hearing compensation is completed quickly with zero distortion, taking only 150 ms.