Efeitos da Quantização dos Sinais de EEG na Detecção da Resposta Auditiva em Regime Permanente
Keywords: ASSR, EEG, ORD, Quantization, Audiometry
AbstractAuditory Steady-State Responses (ASSRs) are an option for an audiometry assessment without subjective interference from patients and evaluators, because the presence of these brain patterns are objectively inferred by applying an Objective Response Detection (ORD) technique to the electroencephalography data (EEG). This work analyzes the variation in the number of bits for the quantization of EEG signals in the detection of ASSRs, in order to find an optimal value of bits that does not compromise the audiometric test. The results showed that there was no significant difference in the audiometry results, in relation to the original data, using a 12-bit encoding.