HDAutils

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HDAutils consists of

1. HDAstat

Displays status of HD Audio controller and Audio Function Group (AFG) node.

2. HDAplay

Loads a PCM-coded file ( RIFF format, filenames usually having a .wav extension ) into memory, searches a path to the lineout pin, then starts the HDA DMA engine to play and finally launches a shell. Exiting the shell will terminate the audio and release all resources.

Hints

• For notebooks it might be necessary to add option -s to use the speaker or -h to use the headphone instead of lineout.
• HDAplay is no TSR. It's absolutely inactive while the shell command processor is running. The only thing that's running in the background is the HDA controller's DMA engine.
• HDAplay won't do any format conversions. If the codec attached to the HDA controller doesn't support the format of the audio data supplied, then the output may sound "strange".
• HDAplay: option -w, possibly combined with -c and/or -d is only useful in rare cases; usually options -s or -h should suffice to redirect output.

For license see file license.txt