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ippStsRCCalcErr
Reflection coefficients are derived from the linear prediction model and are used to test or represent filter stability. IPP reports this status when those coefficients cannot be computed from the current LPC analysis state.
Look upstream at LPC coefficients, autocorrelation data and frame energy. Rechecking the output buffer size usually will not explain this status.
Check these details
- Whether LPC calculation already produced unstable coefficients.
- Prediction order and the size of the coefficient arrays.
- Silent, clipped or malformed speech frames.
Intel IPP Error Reporting · Intel IPP Signal Processing Reference · ITU-T G.729 speech coding
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