Video
Speech Recognition Enhancement

Video  / Speech Recognition Enhancement
Automatic speech recognition technology has improved and has excellent performance when the human voice is in close proximity to the microphone. In other words, with good SNR – in the case of a close talk microphone – the ASR can perform quite admirably. But the SNR decreases as the distance between the voice and microphone increase. This challenge is only exacerbated with noise. Alango’s speech recognition enhancement dramatically improves the performance of automatic speech recognition technology.
May.16, 2022

Blind Interference Cancellation (BIC) Technology

Watch this video on Alango Youtube Channel

In this video, we demonstrate Alango Blind Interference Cancellation "BIC" and its ability to suppress interfering noise in a very realistic use case.

BIC is integrated into the 2nd generation of Alango's proprietary Voice Enhancement Package of software technologies, which include multi-channel echo cancellation (not shown in this video) and far-field beamforming technology. The output from BIC can be fed into any speech recognition software used to interpret user commands. Alango BIC is suitable for smart speakers, IoT and other voice-controlled devices.

Apr.6, 2022

Direction of Arrival (DOA) Technology

Watch this video on Alango Youtube Channel

DOA technology enables the device to detect from which direction speech emanates. DOA is used for directional awareness of the active speaker such as robotic assistant or automatic panning camera.

Aug.19, 2018

Alango's Voice Activity Detection (VAD) technology demo

Alango Voice Activity Detection (VAD) is an embedded DSP-based technology aimed to discriminate between the human speech and non-speech signal. The stand-alone VAD consumes very little power and allows “heavier” signal processing tasks (such as speech recognition) to cease activity and the DSP to sustain a low-power consumption mode as long as human voice activity is not detected. Alango VAD technology implements a proprietary high resolution spectrum noise estimation algorithm allowing reliable voice detection and keeping false detection rate low.

Feb.12, 2018

Demonstration of a Voice Controlled Smart TV with 6-microphone Linear Array

This is a demonstration of Alango’s far-field speech enhancement algorithms and software. Typical applications include smart-home devices and smartphones. The demo features a voice-controlled stereo music player with a 6-microphone linear array simulating a voice controlled TV. The software integrates Alango's proprietary Voice Enhancement Package of software technologies including stereo echo cancellation and far-field beamforming. The output signal from the Voice Enhancement Package is fed into Sensory speech recognition software used to interpret user commands.

Jan.7, 2018

Alango Far-Field Speech Recognition Enhancement Using a Linear Array

Alango showcases its 6-microphone linear array beamforming. A voice-controlled music player recognizes the trigger word while Alango algorithm enhances the recognition.

Nov.19, 2017

Real World Application of Alango's Voice Enhancement Package in Home Robot

Real World Application of Alango’s Voice Enhancement Package in Home Robot.

Oct.23, 2017

Alango VEP demo vs. Amazon Echo

This is a comparison of Voice Trigger recognition sensitivity and robustness of Amazon Echo and Alango’s Voice Enhancement Package (VEP) demo combined with Sensory Voice Trigger technology. Typical VEP applications include smart-home devices and smartphones. The output, enhanced, noise and echo free signal from the Voice Enhancement Package is fed into Sensory Voice Trigger technology.

Aug.2, 2017

Sound Processing in Smart Home Devices - the System Approach

This presentation was given by Dr.Alexander Goldin, CEO of Alango Technologies, at Afeka Conference for Speech Processing on July 3rd, 2017. Alexander gave an overview of technologies for speech recognition enhancement in Smart Home devices. Alango has been working in this field for several years, but the accent of the presentation was given not on Alango technologies, but on the integration of speech enhancement and speech recognition technologies from different vendors for the best system performance. The original video as well as other interesting presentations can be found here http://www.afekaconference.co.il/sp2017/

Mar.12, 2017

Alango Far-Field Speech Enhancement at CES and MWC

This is a demonstration of Alango’s far-field speech enhancement algorithms and software. Typical applications include smart home devices and smartphones. The demo features a voice-controlled stereo music player with a built-in four-microphone array. The software integrates Alango's proprietary Voice Enhancement Package of software technologies including stereo echo cancellation and far-field beamforming. The output signal from the Voice Enhancement Package is fed into Sensory speech recognition software used to interpret user commands.

Jan.3, 2017

Far-Field Speech Enhancement from Alango Technologies, Ltd.

This is a demonstration of Alango’s far-field speech enhancement algorithms and software. Typical applications include smart home devices and smartphones. The demo features a voice-controlled stereo music player with a built-in four-microphone array. The software integrates Alango's proprietary Voice Enhancement Package of software technologies including stereo echo cancellation and far-field beamforming. The output signal from the Voice Enhancement Package is fed into Sensory speech recognition software used to interpret user commands.

Aug.8, 2016

Alango Dual Microphone Noise Reduction Technology for Smartwatches

Robert Schrager, sales and marketing director at Alango Technologies Ltd. demonstrates application of Alango proprietary, dual microphone digital noise reduction technology for smart watch application. Dual microphone noise reduction in smart watches poses a special challenge due to uncertainty of user’s voice direction (left, right, front, back) with omnipresent ambient noise. The video clip shows that noises can be successfully removed with user’s voice attenuation and distortion.

Dec.10, 2014

Voice Controlled MP3 Player DEMO

This clip will demonstrate the powerful combination of the advanced stereo echo canceller by Alango, robust speech recognition by Sensory and powerful digital signal processing available with CEVA DSP. Now you can control your home media centre by voice, hands-free and hustle-free.

Top ▲