Playing Back With Audio Units

[mac OS] — Using Objective-C and the Apple Audio APIs

Image by William Adams from Pixabay

This is a series of posts about Apple Core Audio API. Read them and practice in order.

Series Episodes:

• S01,01. Reading Basic Info from a Local Audio File
• S01,02. Generating Raw Audio Samples
• S01,03. Audio Stream Basic Descriptions
• S01, 04. Recording With Audio Queues
• S01, 05. Playing Back With Audio Queues
• S01, 06. Converting Any Audio Format to LPCM
• S01, 07. Converting An Audio File to LPCM
• [this post], S01, 08. Playing Back With Audio Units
• S01, 09. Audio Unit Input Via A Render Callback
• S01, 10. Connecting Audio Units Together
• S01, 11. Positional Sound with OpenAL
• S01, 12. OpenAL Streaming Example
• S01, 13. Connecting to a MIDI Controller
• S01, 14. Primitive MIDI Controller

Introduction

We have already seen how we can playback using Audio Queues, in the S01, 05. Playing Back With Audio Queues. In the current episode we work on a similar command line program, but, now, we are using the Audio Units API…