For example VLC uses DirectSound, while DirectShow players like MPC-HC typically use DirectSound by default but can be customized to use pluggable audio renderers that can in turn use the Windows audio API of their choice. Some video player apps use Media Foundation, but many don't. it's more of a media player framework and thus seems less relevant here. MME, despite being incredibly old (1991) does seem to work with 10-channel output. "Windows multimedia waveXxx and mixerXxx functions" is just another name for MME. It's also designed for specific use cases (sampling, MIDI) which are not relevant here. The only requirement is that the audio interface be properly configured in the Windows audio control panel for 10-channel output.ĭirectMusic is deprecated and not used by any modern software as far as I know. Virtual Audio Cable and, say, the FlexASIO DirectSound backend, or (presumably) any other DirectSound-based app that lets you to play 10-channel files. There is hard evidence with complete trace logs that show DirectShow properly streaming 10-channel audio, down to individual API calls. DirectSound has been shown to play 10 channels.
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