09192: Portaudio: Error when WASAPI is enabled with no audio input devices in the OS

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09192	Sound	Major	Always	16 days ago	16 days ago

Tester	tenpar	View Status	Public	Platform	MAME (Official Binary)
Assigned To	galibert	Resolution	Fixed	OS	Windows 10/11 (64-bit)
Status [?]	Resolved			Driver
Version	0.278	Fixed in Version	0.279GIT	Build	64-bit
		Fixed in Git Commit	e6c3812	Github Pull Request #

Summary	09192: Portaudio: Error when WASAPI is enabled with no audio input devices in the OS
Description	MAME terminates in error when WASAPI is enabled with no audio input devices in the OS. Error description: PortAudio error: Windows WASAPI: (Sound device name)[Loopback]: Invalid number of channels
Steps To Reproduce	1. Disable all audio input devices in the OS, such as microphone and playback redirection. 2. Enable WASAPI by making the following configuration changes in mame.ini. sound portaudio pa_api "Windows WASAPI" 3. Start MAME and launch an appropriate game with sound. 4. When sound is played in the game, MAME will exit with an error. (For example, in the case of fantzone, when the demo starts after the title is displayed.)
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No.23400 Robbbert Moderator 16 days ago	This has already been addressed in https://github.com/mamedev/mame/commit/e6c3812038018a58f5360e0aa9715ae2da1a8138 And, since I've already updated my local builds to include it, I can't confirm your issue, however I've already seen other complaints, so I'll confirm it from them.