Echo Cancellation with Flash – A Case Study

  • Posted by admin
  • On September 7, 2012
Background From time to time we are getting requests to improve audio quality in flash calls and mainly to help remove echo. In a previous post, Echo Cancellation with Flash Clients, we discussed few techniques that could be helpful. In this post we show a case study for integrating a centralized audio filtering to improve […]
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Echo Cancellation, Art or Science? Part III

  • Posted by admin
  • On August 29, 2012
Background In previous posts on echo cancellation we discussed the challenge of echo cancellation algorithms to efficiently handle the echo path, especially when it is long and volatile, and the complexity introduced by the invalidation phenomena.  In this post we will discuss another aspect in echo cancellation called Howling.
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Echo Cancellation, Art or Science? Part II

  • Posted by admin
  • On July 20, 2012
Background In the previous post on acoustic echo cancellation we discussed the importance and the challenge in handling of the echo path. In this post we will discuss a different aspect that echo cancellation algorithm must handle. It is not rare that users change the setting of their audio device during a call. For example […]
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Echo Cancellation, Art or Science? Part I

  • Posted by admin
  • On July 1, 2012
Background First, let us apologize that this post is going to be a bit technical. Don’t worry we will try to keep it as simple as possible.  Echo cancellation, and more specifically Acoustic Echo Cancellation (AEC) is theoretically a very simple algorithm. The AEC algorithm receives a reference signal (i.e. the audio played to the […]
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Improving Audio Quality for Skype

  • Posted by admin
  • On June 1, 2012
Background For many years, Skype has been one of the most popular softphones. Since Skype is being used on many brands of hardware and multiple network connections, there are bound to be occasions in which the audio quality is not satisfactory enough. We, at SoliCall, are constantly being approached for advice on ways to improve […]
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Poor Audio Quality with Hosted VoIP and Cloud-Based PBX

  • Posted by admin
  • On March 1, 2012
Background The hosted VoIP service is gaining popularity like other cloud-based infrastructure services. SMBs prefer hosted VoIP solution to cut down costs and operational overhead. In addition many providers offer attractive build-in features on top of the standard service.  As opposed to other IT services, VoIP is more delicate and if not handled correctly it […]
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