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ippStsAacTnsNumFiltErr
Temporal Noise Shaping can declare one or more filters per window. The legal count depends on whether the current frame uses long windows or eight short windows.
This status indicates that the TNS header itself is out of range for the selected window sequence. It commonly follows a wrong window_sequence value or a damaged bit offset before TNS data.
Check
- The window sequence and number of windows.
- The TNS present flag and per-window filter counts.
- Whether ER AAC syntax changes the point at which TNS is decoded.
Intel IPP Error Reporting · FFmpeg TNS decoder · ISO/IEC 14496-3 AAC standard entry
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