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Hearing Augmentation
By incorporating augmented hearing—what we call “Focused Hearing Through Smart Glasses”—these devices elevate the auditory experience, transforming glasses into a lens for the ears.
Augmented hearing in smart glasses is made possible by Alango’s advanced technologies, transforming how users navigate noisy environments and focus on what they want to hear. Alango’s beamforming technology emphasizes sounds directly in front of the user, such as a conversation partner’s voice in a crowded room, for clearer face-to-face communication while reducing background noise from other directions. Noise reduction algorithms further enhance the experience by suppressing unwanted distractions. Alango’s multiband dynamic range processing (MDRP) tailors amplification to specific frequency losses. The audio signal is divided into frequency channels, and compression curves are applied to each based on the user’s hearing profile. Softer sounds are amplified for clarity, while louder sounds are balanced to maintain comfort, ensuring improved speech intelligibility and a natural listening experience.
Voice Enhancement for Clear Voice Calls
Alango offers standard and specialized technologies for voice enhancement. The glasses form factor is ideal for the placement of microphones to pick up voice. Those microphones can work in conjunction with a bone conducted voice sensor. Since the signals of those sensors can be intelligently mixed, call clarity is preserved even in noisy environments. Beyond classical audio processing for hands-free calls is Alango’s Neural Network Noise Reduction designed specifically for hearables requiring low computational resources.
Voice Enhancement for Voice Control
Voice control systems require different processing than traditional voice calls. What enhances speech clarity for human listeners may not optimize recognition for automatic speech recognition (ASR) or keyword recognition (KWR) systems. In fact, it might spoil rather than improve the performance of the recognition system. Alango’s specialized pre-processing is designed specifically for voice control applications, ensuring that speech remains clear and distinguishable without introducing artifacts or non-linearities that could degrade machine recognition accuracy. By intelligently processing microphone signals, including bone-conducted voice sensors, Alango’s technology enhances the reliability of voice commands even in noisy environments, helping the system recognize the user’s command.
Audio Capture for Videos
Alango’s voice processing transforms smart glasses into a powerful platform for capturing clear, immersive sound while recording video. The beamforming technology focuses sound pickup within the camera’s field of view, ensuring recordings align with the visual scene while minimizing distractions. Microphones on each arm of the glasses capture sound from their respective sides, enabling stereo audio with slightly offset left and right channels to preserve spatial depth. Combined with a bone conducted voice sensor, the system can identify the wearer’s voice and suppress unintended speech—such as “Please, smile”—capturing only relevant sounds from the field of view. Additionally, Alango’s noise reduction suppresses background noise for crisp, high-quality audio. Our technology enhances recorded videos, voice memos, and transcriptions, delivering superior audio for content creation, communication, and accessibility.
Voice Enhancement for Translation and Transcription
Translation and transcription applications require voice processing that prioritizes speech intelligibility and linguistic accuracy over subjective listening comfort. Alango’s advanced audio pre-processing enhances clarity, consistency, and noise reduction, ensuring that speech remains highly intelligible for automatic speech recognition (ASR) engines. Using beamforming microphone arrays and own voice detection (OVD) technology, Alango isolates the speaker’s voice while minimizing background noise, reverberation, and interfering speech. By dynamically adapting to the user's voice, these technologies ensure clearer word recognition and sentence structure accuracy, leading to more precise transcriptions and translations. Whether for real-time conversations, dictation, or multilingual communication, Alango’s processing ensures that every word is captured clearly and accurately, even in challenging acoustic environments.
Audio Enhancement
Alango’s SonicVibrance technology transforms smart glasses audio with advanced stereo normalization, ensuring a rich, immersive soundstage despite the close coupling of left and right channels. Our spectral compander enhances clarity by dynamically adjusting frequencies and preserving detail. Additionally, proprietary bass enhancement mitigates distortion, delivering deep, balanced low frequencies without overwhelming the compact speaker design. By integrating SonicVibrance, engineers can achieve premium audio quality in smart glasses while maintaining the sleek and lightweight form factor.
As smart glasses users move through diverse noise environments, Alango’s Automatic Volume and Equalization dynamically adjusts audio levels and spectrum in real time. This hands-free solution ensures optimal volume and clarity without manual adjustments, enhancing user experience of media playback.
Technology Features
- 4, 6 or 8 microphone beamforming
- Customizable hearing enhancement
- Clear, intelligible voice calls
- Personalized audio experience
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