How to adjust the volume of a sound in OpenAL?

Question

How can I adjust the volume of a sound in the OpenAL sound library?

Nemeth

related: #3983223 – Mimas

Answer 1

float newVolume = 0.4f;
alSourcef(currentSourceID, AL_GAIN, newVolume);

Pitiful

I believe he meant adjusting the device volume rather than the sound source gain. At least that's what I was hoping for when I found this question. – Mimas

device volume? Maybe you should look into the listener object? Then you can easily set the listener's AL_GAIN with: alListenerf(currentSourceID, AL_GAIN, newVolume); – Pitiful

He said "of a sound". – Christa

Answer 2

You can change the global volume by setting the gain of the listener.

void Listener::setVolume(float v)
{
    alListenerf(AL_GAIN, v);
}

float Listener::getVolume()
{
    ALfloat v;
    alGetListenerf(AL_GAIN, &v);
    return v;
}

Rosenquist

Welcome to StackOverflow! Thank you for your contribution, but it would be great if you could add some comments or notes about your code too! Will still upvote :) – Objectivism