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Multi Mic Audio Signal Processing

Multi Mic Audio Signal Processing Multiple microphone systems provide additional spatial and reference noise information not available to single microphone systems. VOCAL offers a variety of multi-microphone (and microphone array) audio solutions using the latest

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Sound Source Localization

Sound Source Localization (SSL) is an important component to microphone array signal processing for speech applications. SSL serves as the front-end to acoustic beamforming by steering the beam to the desired sound source.  The location

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ED-137 VoIP Air Traffic Management Software

ED-137 VoIP Air Traffic Management Software Air Traffic Management (ATM) voice communication systems that utilize costly TDM circuits can be migrated to use Voice over Internet Protocol (VoIP) technology for lower cost and maintenance. The

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V.150.1 Gateway

V.150.1 Gateway Vocal’s V.150.1 Gateway is a standards based implementation that incorporates reliable and efficient transport of any type of modem signal across IP networks by using Simple Packet Relay Protocol (SPRT). This solution supports

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Single microphone active noise cancellation

In many industrial settings, high levels of unwanted acoustic noise are prevalent. Active noise cancellation in a procedure to destructively interfere with the acoustic wavefront of the noise signal and attenuate it as. An active

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Transmit beamforming and beamtracking

Transmit beamforming and beamtracking Transmit beamforming, as shown in Fig. 1, is a widely adopted technique in wireless communications for signal transmission from an array of multiple antennas to one or multiple users simultaneously served

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Source localization

Source localization     Direction-of-arrival (DOA) estimation is a fundamental problem in array signal processing, which has been widely applied in wireless communications and other areas. In 5G wireless communications, massive MIMO (multiple-input multiple-output) is a

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Radar-communication spectrum sharing

Radar-communication spectrum sharing With the ongoing congestion of wireless spectrum in the forthcoming 5G era, spectrum sharing has received significant attention in the past years. Besides employing a very large number of antennas at the

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Pilot Design in FDD massive MIMO

Pilot Design in FDD massive MIMO In 5G wireless communications, massive MIMO (multiple-input multiple-output) is the most promising technique, which employs a very large number of antennas at the base station. Nevertheless, the required pilot

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Knowledge enhanced compressive sampling array

Knowledge enhanced compressive sampling array According to the compressive sensing theory, the success of compress sensing depends on two essential principles: sparsity and incoherence. The sparsity implies that the signal can be compressively sensed, which

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