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Tips for Installing PBXMate in a Distributed VoIP Network

  • On November 19, 2016
Background Many VoIP network administrator face a common problem that their users complain about the quality of their phone calls. The most common complains are about noise, echo and other artifacts. If the network is distributed, it becomes very difficult to analyze and control the multiple components in the network starting from the end devices […]
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Echo Cancellation, Art or Science? Part IV

  • On November 19, 2016
Background In the previous posts of this series we discussed the challenges of echo cancellation algorithms to efficiently handle the echo path,  the complexity introduced by  echo invalidation and the howling effect. In this post we will discuss another important aspect with regards to echo cancellation called Saturation.
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Personalized Noise Reduction in Telephony

  • On November 19, 2016
Background Since the first days of telephony, noise became an integral part of communication.  Modern life caused the problem of ambient noise during phone calls to be even more acute than before.  There are several reasons for this, like: 1. Mobility. Today people make calls from almost every location: street, road.. and even from the […]
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Personalized Noise Reduction Software – Audio Samples

  • On November 19, 2016
Background As we discussed in our previous post on user specific noise reduction, the personalized noise reduction software utilizes new methods to perform noise suppression. The results are impressive. The following recordings were done by executing the personalized noise reduction software under the toughest conditions possible: analyzing a single mono audio channel without any additional input […]
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Registering a Personal Voice Profile

  • On November 19, 2016
Background In the previous post we have discusses a unique technology for tuning the ambient noise reduction to your voice and therefore enable a superb personalized noise cancellation. By this point, the power and need for this technology is clear. The question that one might ask is the “price” that needs to be paid in […]
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Personalized Noise Reduction Software. Why Is It Different ?

  • On November 19, 2016
Background Following our last post that revealed audio samples of the new personalized noise reduction technology, we keep getting requests to clarify the difference between the personalized noise reduction software and other noise reduction technologies that exists in the market today. In this post we will review a common scenario that will help visualized the […]
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Personal Noise Reduction for Mobile Phones

  • On November 19, 2016
Background The personal noise reduction is a new approach for identifying and removing ambient noise in telephony. As explained in a previous post, the personal noise reduction is superior to any existing approaches for noise reduction. In this post we will discuss different usage scenarios for mobile phones.
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Personal Noise Reduction Technology. Altruism or Egoism ?

  • On November 19, 2016
Background In the last post we have discussed the different options for using personal noise reduction in mobile phones. In this post we will elaborate on the expected value from using this advanced technology. Usually, when you purchase a new mobile phone, you are acting to the benefit of one’s self. You want to enjoy […]
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Personal Noise Reduction – out of the box deployment

  • On November 19, 2016
Background The personal noise reduction software has proven to increase audio quality and MOS score in different noisy environments. This technology is using information on the speaker’s voice in order to separate it from the background noise and attenuate the latter. This powerful technology had one major drawback that prevented it from reaching mass deployment. […]
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Profile-Based Noise Reduction

  • On November 19, 2016
Background In this post we will review the evolution of this technology over the years. Initially this technology was introduced under the name of personal noise reduction.  Few months later the concept of out-of-the-box deployment with generic profiles was introduced. At the next step, we have renamed this technology to “profile-based noise reduction” based on […]
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