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Audio Essentials

1 Day Course
Code MT010

Book Now - 1 Delivery Method Available:

Scheduled Online Onsite

Overview

Always wanted to know your mp3s from your WAVs but were afraid to ask?

This course is designed for those who work with audio and have some understanding but need to know more about compression, file-formats and limitations of digital audio files.

The essentials are stripped down and presented in as non-technical a way as possible and audio samples are used throughout the course so you can actually hear the different results.

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Modules

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Introduction

Audio basics (4 topics)

  • The audio spectrum
  • Audio dynamic range
  • Recording analogue audio
  • Analogue media - LPs and tape

Converting to digital audio (10 topics)

  • Digitising audio
  • PCM?encoding
  • Explanation of sampling rates
  • The Nyquist frequency
  • Aliasing and anti-aliasing
  • Bit depth and dynamic range
  • Dither noise and masking dither noise
  • Examples of different types of sampling
  • Storing PCM Recordings
  • PCM as WAV and AIFF

Bit-rate compression of digital audio (7 topics)

  • Why do we need to compress?
  • Examples of file formats - mp3, AAF, mp4 etc
  • How compression works
  • Using different software for compression
  • Identifying compression defects and artifacts
  • Streaming compressed files
  • A-B comparison between uncompressed and compressed examples

Encoding audio (2 topics)

  • The need for error correction
  • Information carried on the PQ channels

Dynamic range compression (5 topics)

  • Why compress your dynamic range?
  • Dynamic range compression vs bitrate compression
  • When to apply compression
  • Different examples - different sounds
  • Threshold, ratio and gain - understanding the controls

Editing audio (3 topics)

  • Simple examples of editing
  • Speech editing
  • Music editing

Questions and answers

Prerequisites

Delegates should have a basic understanding of audio principles.

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What Our Customers Say

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— Solutions Engineer, Akamai

“Good level of detail and industry examples of the technology and its usage. Trainer extremely knowledgeable with a great deal of experience in the field.”

— Software Manager, Panasonic
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