The reccurent signals are supplemented by noise for filtering through an amended LPC filter derived from the original LPC-filter by using information of pitch and formants, and of a voiced-unvoiced deichotomy.

However, the problem associated with prior art remains, whereby all processes for redundancy control are expensive (additional hardware/devices) or unreliable (risk of split-brain), sometimes even both.

Chronic alcoholism is a diverse and heterogeneous disorder that can be dichotomized into cognitively intact and cognitively impaired subgroups.