Media Encoding and Transmission

This course provides an introduction to the digital processing that is carried out on speech and video before transmission. The transmission of speech over traditional circuit-switched networks is compared to its transmission over IP networks such as the Internet.

Media Encoding and Transmission

Course Description

This course introduces the techniques used to convert speech and video signals into a form that can be carried over a digital transmission network. The need to minimise the bandwidth necessary to transmit these encoded signals is discussed. The various compression techniques employed to reduce the bandwidth requirements are described and compared with reference to the effect of compression on speech quality. Finally the special requirements for encoding speech for a “Voice over IP service” are explained. This course is one of a suite of PTT courses that introduce the concepts that underpin modern telecommunications technologies. These courses will provide those with a limited knowledge of telecoms technologies with an understanding of the key concepts required to study the more advanced PTT telecoms courses. Analogue an... Read More »

This course introduces the techniques used to convert speech and video signals into a form that can be carried over a digital transmission network. The need to minimise the bandwidth necessary to transmit these encoded signals is discussed. The various compression techniques employed to reduce the bandwidth requirements are described and compared with reference to the effect of compression on speech quality. Finally the special requirements for encoding speech for a “Voice over IP service” are explained.

This course is one of a suite of PTT courses that introduce the concepts that underpin modern telecommunications technologies. These courses will provide those with a limited knowledge of telecoms technologies with an understanding of the key concepts required to study the more advanced PTT telecoms courses.

Read Less
Course Outcomes:
  • Explain the digital communications system constraints that necessitate the compression of encoded speech and video signals
  • State the audio bandwidth requirements of speech and music signals and describe why the allocated audio bandwidth is restricted before encoding takes place
  • Describe the principles of PCM analogue to digital encoding and the principles and benefits of non-linear encoding
  • Describe the principles of the compression techniques employed to minimise the bit rate of encoded speech and music
  • Explain the disadvantages of compression
  • Describe the characteristics of the types of encoder used for telephony, digital broadcasting and music downloads
  • Describe the bit rate requirements of video traffic and the principles of JPEG and MPEG video compression
  • Describe the characteristics of the codecs used for video telephony and conferencing, television broadcasting, and video streaming services
Course Details:

Target Audience

This course is designed for those who require an introduction to the fundamental technical concepts that underpin modern telecommunications. The course is suitable for those joining the industry in a technical role especially those in an apprenticeship.

Access Timeframe

1 Year

Prerequisites

You will get the most out of this course if you already have an understanding of the fundamentals of analogue and digital signals and a basic understanding of digital communications and the role of data protocols. It is recommended that the PTT courses Analogue and Digital Signals and Data Communication Principles are studied before attempting this course.
Certificate Info:

Type of Certification

Certificate of Completion

Method of Obtaining Certification

Upon successful completion of the course, the learner can download a certificate.

Technical Requirements

To access the course, a PC running a browser such as Internet Explorer 6 or above, Firefox 2 or above, Google Chrome or Safari is required. The PC should have Internet access and be running Flash version 8 or above. A screen resolution of at least 1024x768 is necessary.

DON'T HAVE TIME?

We can send you everything you need to know about this course through email.
We respect your privacy. Your information is safe and will never be shared.