Audio ¶

Introduction ¶

HelenOS supports audio devices. Getting basic audio output is very easy. We'll explain all the necessary steps here.

Audio on Hardware ¶

HelenOS supports Intel High Definition Audio thus it should work with the on-board audio device of any not-too-ancient PC.

Audio in Qemu ¶

In Qemu HelenOS can support audio via Intel High Definition Audio device. Just use ew.py and you will get it automatically. Alternatively, run Qemu with the options

-device intel-hda -device hda-duplex

Don't use the sb16 device - current versions of Qemu have broken sb16 support.

Say hello ¶

To test sound type into the terminal:

# wavplay demo.wav

Amiga-style modules ¶

The modplay command can play Amiga-style modules (.mod and .xm). Find one and get it onto your HelenOS system (e.g. on a USB stick or build it into the initrd). Play it using the command:

# modplay <my_module.mod>