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ippStsLSFHigh
This warning reports that the line spectral frequency stability check touched the upper boundary of the valid zero-to-pi interval. The routine constrained the value to maintain filter stability.
Inspect the quantized LSF vector rather than treating this as a generic buffer problem. High-boundary clipping affects spectral shape and can reveal corrupted or out-of-range speech parameters.
Check these details
- LSF values close to pi radians.
- Minimum spacing between adjacent LSF values.
- Decoder state and codec mode used for the frame.
Intel IPP Error Reporting · Intel IPP Signal Processing Reference · ITU-T G.729 speech coding
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