What does HRESULT 0xC00D1BBB (NS_E_INVALID_AUDIO_PEAKRATE_2) mean?

NS_E_INVALID_AUDIO_PEAKRATE_2

NS_E_INVALID_AUDIO_PEAKRATE_2: the failing boundary

NS_E_INVALID_AUDIO_PEAKRATE_2 (0xC00D1BBB) means The audio peak bit rate setting must be greater than the audio bit rate setting. The important boundary is audio VBR constraints; do not replace this result with a broader “Windows Media failed” diagnosis.

What this result proves

This code proves that the configured audio peak bit rate is not greater than the nominal audio bit rate. 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 nominal and peak bit rates from the active profile; set a peak value above the nominal value and revalidate that same stream. 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_INVALID_AUDIO_PEAKRATE_2.

Technical references

• Windows Media Format SDK.
• Microsoft HRESULT registry.