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Tips for Developing VoIP on Mobile Devices (Android,iOS,…)

  • On August 1, 2011
CPU Consumption One of the main problems in mobile devices is their limited CPU Power. As a result the delay in the audio signal is increased and from time to time portions of the audio signal might get lost. In order to resolve these problems, you need to verify that your VoIP application is optimized […]
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Audio Quality When Using Speakerphone During Phone Calls

  • On November 20, 2016
  Background There are different scenarios in which calls are made using speakerphones. For example: In manufacturing floor where the employees want to have an open communication channel without the limitation of headset or handset. When using intercom devices. When more than one person needs to listen to the call (e.g. in conference rooms). When […]
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The Importance of Audio Quality in Call Centers

  • On April 12, 2019
Background Telephony is the main (and usually the only) communication channel between Call Centers and their customers. The efficiency and quality of the telephony interactions between a Call Center and its customers is a key factor to the Call Center’s business success.  This efficiency and quality can be divided to two major categories: Information & […]
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Automatic Speech Recognition (ASR) in IVR Systems

  • On November 20, 2016
Background The most important role of an IVR system is to efficiently handle incoming calls allowing the organization to improve its service while saving time & money when processing these calls. In order to improve ROI and increase customer satisfactions, organizations need to implement an efficient IVR that quickly gathers the necessary information from the […]
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Critical Factors to Assure High Audio Quality in VoIP

  • On April 1, 2011
Background Many organizations today want to deploy / develop VoIP applications. The need for audio communication is required for many applications like customer support, internal communication between employees etc. VoIP is used as the underlying technology because it is the industry standard for voice communication, it can give high quality and it is usually a […]
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High Quality Recording of Streaming Audio

  • On November 20, 2016
Background From time to time you need to record streaming audio on your computer. One option is simply to activate your recording program while playing the streaming audio. The problem with this solution is that the quality of the recorded audio will be very low since you are not capturing the source of the audio […]
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Improving the Accuracy of Speech Recognition Applications

  • On November 20, 2016
Background One of the main problems that can badly impact the accuracy of speech recognition is ambient noise. Ambient noise and especially non-stationary noise is very problematic. See Cancelling Ambient Noise In Telephony for explanation on the nature of ambient noise. The problem with ambient noise is that the speech recognition engine has difficulty to […]
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Cancelling Ambient Noise in Telephony

  • On February 13, 2011
What is ambient noise? Ambient noise is all sounds that are picked up by the microphone but are not part of the conversation. Usually all sounds that are not originated from the vocal tract of the speaker are considered ambient noise. Types of ambient noise Stationary Noise – monotonic sound that has similar acoustic characteristics […]
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Echo in VoIP and Altruism

  • On November 18, 2016
What is echo in telephony? In a nutshell, echo is the phenomena in which your voice is being played back to your speakers. Echo has been with us since the early days of telephony. In the past, when most people where using PSTN lines, echo was less disturbing due to the fact that the delay […]
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How to control audio volume in conference rooms?

  • On November 20, 2016
Can you hear people that are sitting far away from the microphone? Have you ever joined a conference call where some of the participants were sitting in a conference room? Were you able to understand every word that these people were saying? Probably not. Usually you can clearly hear the people sitting close to the […]
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