Addressing sound quality in VoIP calls

Ozeki SIP SDK delivers superior voice quality because it integrates advanced digital voice processing functions such as echo cancellation, noise cancellation and adaptive jitter buffering. It is really easy to incorporate in your applications. Below you will find the detailed descriptions and user guides for each feature and function.

The most essential part of voice communication is, obviously: voice. Whether it is a voice call or a video call you would not understand the called party without hearing each other's voice. This is why sound quality is crucial when we talk about VoIP technology and VoIP calls. There are many aspects to describe sound quality. For example, the speed of sound traffic basically depends on the codecs used by the software. By using high definition codecs the split in the sound can be avoided. The clarity of the sound is also important. Noises and echoes can be filtered with the proper applications.

  1. How to manage different audio codec types

    Audio codecs are used to code or decode digital audio data stream or signal. This article presents all you need to know about audio codecs and explains how to manage them in C#.
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  2. How to manage Jitter Buffer

    As Ozeki VoIP SIP SDK contains dynamic jitter buffer technology, it can be configured by your network administrator. On this bases this article is intended to introduce how to use that and how to handle latency in C#.
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  3. How to implement Acoustic Echo Cancellation

    Acoustic Echo Cancellation (AEC) provides high level of voice quality on phone calls by removing echo from a voice communication. This guide presents you an example on how to implement AEC in C#.
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  4. How to implement Noise Reduction

    Noise reduction is the process of removing noise from a signal and it can be used to improve voice quality in phone calls. For studying the implementation of noise reduction in C#, take a look at this article.
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  5. How to implement Automatic Voice Gain control

    Find out more about the main concepts and the implementation of Automatic Gain Control (AGC) that can be effectively used to enhance the voice quality of telephone calls.
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