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Author Archives: SoliCall
Personalized Noise Reduction in Telephony
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. … Continue reading
Echo Cancellation, Art or Science? Part IV
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 … Continue reading
Posted in Acoustic Echo Cancellation, AEC, Echo Cancellation, Uncategorized
Tagged echo cancellation, saturation
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Why Echo Cancellation for Android is a Difficult Task?
Background SoliCall offers different software solutions for audio quality improvements. One of the areas with an increasing demand is the need to solve echo issues with Android devices. As discussed in few of our previous posts on echo cancellation, in … Continue reading
Posted in Acoustic Echo Cancellation, AEC, Android, Echo Cancellation, Mobile, Uncategorized
Tagged Android, echo cancellation
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Tips for Installing PBXMate in a Distributed VoIP Network
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 … Continue reading
Audio Quality in Video Conferences
Background In the last couple of years the percentages of employees that work from home rapidly increases. There are three main reasons for this phenomenon: (1) Efficiency. No need to spend hours driving to/from the office and in many cases … Continue reading
Flash Conference with Acoustic Echo Cancellation
Background Following our previous post on acoustic echo cancellation on flash calls, we got requests to improve audio quality also on conference calls that are based on flash technology. The case study that was described in the previous post dealt … Continue reading
Installing PBXMate with Elastix – Phone Setup
Background In a previous post we reviewed the basics of installing of PBXMate with Elastix. In this post we will review how to configure your phones to work with PBXMate. This post will discuss the configuration for VoIP phones. … Continue reading
Posted in Audio Quality, Elastix, SIP, Sip Proxy, Uncategorized, VoIP
Tagged Audio Quality, Elastix, PBXMate, Sip Proxy
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Intercoms and Acoustic Echo Cancellation
Background One of the disturbing problems that appears when using intercoms, or other low-end full-duplex communication devices, is the generated echo. Usually the echo is significant in these situations due to the following two reasons:
Installing PBXMate with Elastix
Background As recently announced, the PBXMate is now an Addon to Elastix. As a result, installing PBXMate with Elastix became a very simple and straight forward task. In this post we will perform this task step-by-step.
Posted in Addon, Audio Quality, Elastix, Voice Quality, VoIP
Tagged Addon, Elastix, PBXMate
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Echo Cancellation with Flash – A Case Study
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, from 2011, we discussed few techniques that could be helpful. In this post we … Continue reading
