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call center quality – noise cancellation

  • Posted by admin
  • On March 6, 2017
  [EDITED] For an explanatory video please check the post on reducing noise in call centers. Background Call centers are crowded locations in which agents are sitting next to each other making phone calls to customers. As a result, these phones calls contain a lot of ambient noise that is caused due to the physical conditions […]
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Noise reduction algorithms – PNR vs. RNR

  • Posted by admin
  • On January 3, 2017
Background Recently SoliCall introduced the reference-based noise reduction (RNR). This new technology was added to our noise reduction portfolio which already contained profile-based noise reduction (PNR) and standard noise reduction.  Following the RNR introduction, we got requests to elaborate on the difference between PNR and RNR as they both use a profile/learning mechanism. In this […]
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Reference based Noise Reduction

  • Posted by admin
  • On November 1, 2016
Background Ambient noise during phone calls is annoying especially when the phone calls are a significant part of your business. Let’s assume you run a call center and there is temporary (or constant) source of noise that is picked up by the phones of the agents and therefore this noise is being heard by your […]
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How can echo suppression badly impact call quality ?

  • Posted by admin
  • On January 1, 2016
Background Can phones/soft-phones with built-in echo suppression badly impact the audio quality? Surprising as it may sound the answer is positive. In other words, when a call center, or any other organization, purchase phones with built-in echo suppression it is jeopardizing the overall call quality.  In order to analyze the reason for this phenomena we […]
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VoIP on Android – volume control

  • Posted by admin
  • On August 3, 2015
Background In our previous posts we covered few of the difficulties that Android VoIP developers are facing – for example the challenge in providing high quality echo cancellation. In addition to the echo cancellation, the variety of hardware platforms that are running Android also introduces a challenge in controlling the volume of the voice.  
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Extreme Noisy Environments

  • Posted by admin
  • On November 9, 2014
Background Following our last post on the profile-based noise reduction technology, in this post we would like to cover few environments that suffer from extreme ambient noise. In these environments, many existing technologies are used to minimize the ambient noise. Unfortunately this is not enough and the output usually suffers from significant residual ambient noise […]
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Profile-Based Noise Reduction

  • Posted by admin
  • On September 9, 2014
Background In this post we will discuss the current status of SoliCall’s innovative and powerful noise reduction technology.  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. Recently, we have renamed this technology to “profile-based noise reduction“.
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Personal Noise Reduction – out of the box deployment

  • Posted by admin
  • On May 18, 2014
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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Personal Noise Reduction Technology. Altruism or Egoism ?

  • Posted by admin
  • On March 16, 2014
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 for Mobile Phones

  • Posted by admin
  • On January 24, 2014
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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