Featured Image

Echo in Public Address systems – additional considerations

  • On January 16, 2016
Background This post is a continuation to our previous post on  AEC and Public Address systems. This post elaborates on additional considerations that should be reviewed when implementing and tuning acoustic echo cancellation software in PA systems. After analyzing relevant case studies, out of many important considerations, we have selected the below ones.
Read More

Echo Cancellation on Android and AudioRecord

  • On June 5, 2015
Background When developing a VoIP application, most implementations use AudioRecord as the foundation class for capturing audio from the microphone.  Can this class be used to cancel echo as well ?  
Read More

Echo Cancellation and silence

  • On March 11, 2015
Background Following our previous post on synchronization, in this post we would like to cover a specific aspect of un-synchronized input which causes the speakers to play silence that is not monitored and therefore unknown to the AEC.
Read More

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 […]
Read More

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 […]
Read More