About the tutorial series

Requirements

What is OpenAL?

Buffers

OpenAL Sources

Source position and velocity

The Listener object

Creating Sources

Changing Properties of a Source

Conclusion

Intro

Coding

Loading sound effect data

Storing sound data

Setting a property of the listener

Setting the source position

Associating the buffer with the source

Testing the Audio Code

Setting up user input for sound effects

Conclusion

Intro

Visual Explanation of Sound

Fixing an ImGui Bug

Setting up the Audio Device/Context

Creating the Sound Asset

Creating an Asset Pool for Sounds

Creating ImGui Screen for Sounds

Start

Disclaimer and setting expectations

OpenAL Soft information

Getting OpenAL Soft

Generating OpenAL Soft project files with CMake

Creating and setting up an OpenAL game test project (includes, libraries, dlls, etc)

Creating folders for OpenAL library and moving files

Configuring project include and linker settings

Set up library directory location

Set up linker

What is OpenAL and how to load audio files

Setting up AudioFile (GPL) file loading library (I suggest using dr_lib instead, see end of video but this part should be watched to help understand what dr_lib is doing)

Fixing Audio file warnings

What is PCM data and how do I get it from a file?

Extracting PCM data by modifying AudioFile library

OpenAL error checking

getting OpenAL device and setting up context on the device

mono vs stereo files for OpenAL buffers

load an audio file with AudioFile.h

load sound pcm data into OpenAL buffer

playing a sound source and waiting for it to finish

cleaning up resources

getting the project from the video

getting dr_lib (dr_wav) - a free audio file loading library that is public domain (less restrictive than gpl)

using dr_wav loaded data with OpenAL

Demoing the Audio System

Time Dilation Demo

System c++ Overview

Useful Audio System Debugging Tips

Intro

Distance Attenuation Formulas

Choosing an Attenuation Model

Exponential Attenuation

Clamped Attenuation Model

Attenuation Example

Linear Distance Attenuation Model

Linear Distance Attenuation Demo

Attenuation Demo

Disabling Attenuation

Intro

Setting the volume, pitch, and position

Setting the looping property of a source

Making the Source Pause

Setting the listener's position

Looping a source

Playing multiple sound effects at the same time

Running the simulation

Conclusion

intro

expectations

resource references

visual studio and vcpkg

init visual studio project

SoundDevice class code

SoundDevice class code explained

SoundBuffer class code

SoundBuffer class code explained

Load a sound

SoundSource class code

SoundSource class code explained

Testing final results

outro

Intro

Example of a big endian number

Converting a char array to an integer

WAV file encoding

Getting the size of a WAV file

Create context

OpenAL buffer data

Freeing memory

Looping a sound source

Conclusion

CMSS-3D (MacroFX on)

OpenAL Soft

Host OpenAL (Sens_oal.dll) software EAX emulation on the X-Fi XtremeGamer card. Yes, that's right, you can install HOAL even if you're already running a Creative card, it will work! And it even has a higher priority than the hardware-accelerated implementation (move Sens_oal.dll from system32/syswow64 to get back to the native implementation). Due to being software, the quality should be exactly the same as when it was running on the Realtek card.

Creative OpenAL (ct_oal.dll) hardware EAX on the X-Fi XtremeGamer card, like last time, but this time EAX volume has been set to 0 dB, so it does not add any additional volume to EAX effects and makes reverb more subtle. Whether that sounds better is a matter of preference.

OpenAL Soft (soft_oal.dll) open-source software implementation on the X-Fi XtremeGamer card. It does not support EAX, therefore there is no reverb, and ambient occlusion is close to nonexistent. It also needed an environment variable to be set to work with Unreal II properly, but the next release should have that issue fixed. In the future it may have EAX support, too.

Intro

What is OpenAL?

OpenAL's Interpretation of Audio

Loading a Sound File

Storing the Source

OpenAL Sources

OpenAL Demo

OpenAL Context

Creating the Buffer

Smooth Transitions