HRESULT 0xC00D1BBB (NS_E_INVALID_AUDIO_PEAKRATE

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Description:

The audio peak bit rate setting must be greater than the audio bit rate setting.%0

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NS_E_INVALID_AUDIO_PEAKRATE	NS_E_INVALID_AUDIO_BUFFERMAX

NS_E_INVALID_AUDIO_PEAKRATE_2

The failing boundary in the Encoder object model

The useful reading of NS_E_INVALID_AUDIO_PEAKRATE_2 (0xC00D1BBB) is not merely the standard message shown above. It locates audio peak bitrate does not exceed the configured average bitrate when constrained VBR requires it inside audio stream and audience settings.

The audio part of an encoder profile combines source format, codec, bitrate mode, average and peak rates, buffer limits and channel layout in a session that returns this result. Multiple audiences impose cross-audience consistency rules in addition to per-field ranges at the invalid audio peakrate 2 checkpoint.

Evidence that separates this code from a wrapper error

A codec can be installed and still reject the selected format or bitrate combination; codec presence and profile validity are different tests in a session that returns this result. For example, average and peak values are copied as the same number. Preserve the result distinction before a UI layer converts the result into a broad start, capture or profile failure.

Field	What to preserve
Decisive values	average and peak audio bitrate for the audience
Producing object	source WAVEFORMATEX, audience index, audio codec and format indexes, VBR mode, average/peak bitrate, buffer size, channel count, language and compatibility target
Session correlation	the same source-group generation, audience index, object identity and callback sequence that produced this result
Lower-level evidence	the first COM, driver, file-system or codec HRESULT observed before the Encoder mapped the condition to this result
Controlled comparison	a known-good session that changes only the setting named in the invalid audio peakrate 2 boundary

Interpret the next measurement

Observation	How to interpret it
Observation that supports it	The decisive evidence is average and peak audio bitrate for the audience. It confirms audio peak bitrate does not exceed the configured average bitrate when constrained VBR requires it in the same object generation.
Observation that points to an earlier failure	The recorded values satisfy the invalid audio peakrate 2 rule, but a source, driver, COM activation or file operation returns a different HRESULT first.
Observation that points to a later failure	The Encoder passes this boundary (audio peak bitrate does not exceed the configured average bitrate when constrained VBR requires it), but a codec, archive or broadcast sink then fails in a subsequent stage.
Verification after correction	Apply this isolated change: set peak bitrate above average while remaining within codec limits. The original invalid audio peakrate 2 call should then advance past the same checkpoint.

The operational impact of it is limited to the audio stream and audience settings transition that owns audio peak bitrate does not exceed the configured average bitrate when constrained VBR requires it. In the representative case where average and peak values are copied as the same number, keep the first failing call and its object identity so a later wrapper cannot replace the invalid audio peakrate 2 evidence.

Test the condition without rewriting the session

Record 0xC00D1BBB, it, the Encoder version and the exact API call or property access that returned it.
Export the current .wme or .prx configuration, then capture average and peak audio bitrate for the audience.
verify the audio stream and audience settings precondition without changing the source, profile and output sink at the same time.
Run one controlled comparison in which only this condition changes: set peak bitrate above average while remaining within codec limits.
After the change, recreate the affected Encoder object rather than assuming the existing graph discarded its earlier invalid audio peakrate 2 state.

Interpret neighboring results carefully

Result	Why it is a different boundary
`NS_E_INVALID_AUDIO_PEAKRATE`	audio peak bitrate is outside the codec or mode's valid range
`NS_E_INVALID_AUDIO_BUFFERMAX`	maximum audio buffer setting is outside the accepted range or unit
`NS_E_AUDIO_BITRATE_STEPDOWN`	audio bitrate ordering is inconsistent with ascending total audience bitrate

Resolution and verification

The direct repair for this occurrence is to set peak bitrate above average while remaining within codec limits. Recreate the affected source group, profile or output object, repeat the same operation, and confirm that the first failing HRESULT no longer comes from the invalid audio peakrate 2 checkpoint.

Do not substitute a different codec before saving the exact profile values rejected by validation; otherwise the incompatible combination cannot be identified in a session that returns it.

References for the boundary

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