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NS_E_AUDIODEVICE_BADFORMAT
NS_E_AUDIODEVICE_BADFORMAT: the failing boundary
NS_E_AUDIODEVICE_BADFORMAT (0xC00D1B63) means The audio capture device does not support the specified audio format. The important boundary is audio capture format negotiation; do not replace this result with a broader “Windows Media failed” diagnosis.
What this result proves
This code proves that the selected audio capture device does not support the requested format. It does not, by itself, prove a codec, permissions, network, device, or media problem outside that boundary. Preserve the first lower-level result when one exists, because later Player or Encoder errors can hide the original cause.
Evidence and focused verification
Record requested and device-native formats; choose a format reported by the endpoint rather than repeatedly reopening it. Keep the media object, endpoint, profile, or device identity fixed while changing only that rejected precondition. A successful retest should pass this exact boundary; a different HRESULT from a later stage is new evidence, not recurrence of NS_E_AUDIODEVICE_BADFORMAT.
Technical references
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