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NeuroVoice

Ultra-Low Power Neuromorphic Front-End Chip for Voice Processing

NeuroVoice, a Tiny AI chip based on the Neuromorphic Analog Signal Processor, addresses the most annoying problems of mass-market hearables:  hearing experience in case of irregular noises, power consumption,  cloud connectivity, and data privacy issues.

NeuroVoice Product Family

Voice Activity Detection

Ultra-low-power neuromorphic chip for smart microphones. Recognizes and transmits only the human voice

Smart Voice Control

Ultra-low-power neuromorphic chip for voice control appliances. Spots keywords without internet, in noisy environment

Voice Extraction

  Ultra-low-power neuromorphic chip for over-the-counter hearing aid and earbuds. Extracts human voice from any noisy audio providing hearing assistance                                                                   

Voice Activity Detection

Most state-of-the-art voice detection devices are based on digital signal processing and consume a lot of power. Voice activation solutions are inefficient in noisy environments.

The NASP NeuroVoice VAD is an ultra-low-power neuromorphic chip that detects voice in any noisy background. It is always-on, and no internet is needed. Applications include earbuds, wearables, voice access, IoT, Industry 4.0, robotics, Smart Home/Factory, mobility, and more.

Parameter Value
Power consumption, µW
~30
Size, mm2
1.2
Input/Output
PDM/I2S/GPIO (voice flag)/PDM/I2S
Feature Description
Voice Passthrough
Passes voice and mutes background sounds
Background Signal Bypass
WWD command to activate transparent voice bypass
Speech/Command Intelligibility in Noisy Space
Control Word in noisy environment

Smart voice control

State-of-the-art voice control systems rely on cloud connectivity to be efficient in noisy environments. However, this is not energy-efficient and is disliked by users.

The brain-inspired NASP NeuroVoice Smart Voice Control is an ultra-low-power chip that continuously processes the microphone signal and detects voice commands. Even in high-noise environments, the chip processes all data on-device. There is no need for a connection to the cloud.

Feature Description
Voice Passthrough
When voice is detected all other background sounds are muted. Perfect for voice command control and clear communication
Background Signal Bypass
WWD command to activate transparent voice bypass
Speech/Command Intelligibility in Noisy Space
Increases voice command intelligibility for WWD/KWS functionality in noisy environments. Solves the problem of command recognition in noisy signals for Smart Home, Smart Factory, Wearables and more

Voice Extraction

Voice Extraction provides the best hearing experience! Always-on, adaptive to different types of noise, ultra-low-power, and on-device, cloud-independent voice processing

The NASP Voice Extraction core, powered by neural networks, extracts human voice from any signal, enabling clear communication between speakers and listeners. It is distinct from noise cancellation and focuses on real-time voice extraction by neural networks without the need for environmental microphones or DSP systems.

Feature Description
Voice Passthrough
When voice is detected, the operation mode is changed according to the configurable preset list. Perfect for intelligent hearing aids and TWS with voice enhancement.
Background Signal Bypass
In absence of voice, this feature enables the background sounds to be passed through, which is important for hearing aids use case.
Speech/Command Intelligibility in Noisy Space
Increases speech intelligibility for hearing support. Solves the problem of low intelligibility in noisy spaces for many people.

Hearing difficulties are common today. Mild to moderate hearing problems often coincide with challenges in hearing in noisy environments.

Refining the ability to hear the human voice in noisy environments would be a significant step forward for hearing aids, hearing assistance, conferencing, two-way radios, or even gaming applications.

Voice extraction by a neural network is the answer if it is implemented not in the cloud but on the device. NeuroVoice, a small low-power and low-latency chip, offers precisely that. 

WHY NEUROVOICE?

Digital hearing solutions have challenges:

1Digital sound processing is power hungry

2Digital solutions can’t provide low latency needed for real-time voice processing

3Active noise cancellation is helpless against irregular noises

Challenges answered by NeuroVoice!

1Ultra-low power consumption below 150µW

2NASP ensures ultra-fast inference in up to 20µs

3Voice extraction delivers clear voice in any background conditions

Digital Signal Processing vs NASP Capabilities

Solution Acoustic Voice Processing Mixed Voice Processing Irregular Noise Standard Noise Single Microphone Solution Transparent Mode AI Support
DSP
Yes
No
No
Yes
No
No
NASP
Yes
Yes
Yes
Yes
Yes
Yes
NEUROVOICE ADVANTAGES

Accurate voice processing with Neuromorphic analog chip

Long battery life due to ultra-low power consumption

Small IC printfoot

Reduces cloud connectivity costs

End-user privacy

Ensures short time-to-market

Neuromorphic
Analog
Signal
Processing
NO FEAR of DATA TSUNAMI
Technology