近年來討論愉悅性人機介面的研究越來越廣泛，而聲音介面亦是其中之一，因為聲音如同其他環境的刺激物一般，會喚起人們內心深處的情緒反應。近來由於科技的發展，透過腦波測量儀可將心理反應透過生理訊號加以測量。然而相關研究極少著重聽覺情緒的測量，此外腦波量測的過程非常複雜，必須在受測者頭上黏貼許多電極，受測者會感到不適。故為了解聲音刺激的情緒反應、簡化實驗流程、提昇研究效率和減輕受測者接受腦波量測的心理負荷，本研究企圖以腦波測量儀偵測各種聽覺情緒反應，藉此探討評估聽覺情緒反應的重要電極位置和腦波變化的模式。本實驗所得結果顯示(1)α波為愉悅聽覺反應的重要指標；(2)在頭顱左上前方Fp1和F7的位置為觀察愉悅聽覺反應的重要位置；(3)在F7的位置，a波和d波的愉悅聽覺反應功率比值具顯著高度負相關；(4)個體差異會影響聲音刺激主觀感受評估；最後(5)性別差異亦會影響聲音刺激主觀感受評估，但性別對腦波的聽覺反應刺激資料並無顯著差異。

Pleasure human computer interfaces have been widely discussed recently. Auditory interface is one of them because sound is like other environmental stimulus that could arouse human's emotional response from the bottom heart. Due to the development of technology lately, “EEG” (Electroencephalogram) could detect emotional responses according the variations of physiological signals. Nonetheless, there were not many studies focusing on the measurement of the emotional auditory response. In addition, the procedure of an EEG measurement is very complicated and participants have to attach many electrodes on their skulls, which are not comfortable. In order to understand the emotional response of auditory stimulus, simplify the experimental procedure, increase the efficiency of research and reduce the mental workload of participants, this study try to use EEG to detect the auditory response, then find out the critical electrode positions and the modality of the variations of brain waves. The results of this experiment showed: (1) according the power spectrum analysis, a wave is the most important indicator to the positive auditory response; (2) Fp1 and F7 located on the left frontal brain are the critical positions to observe the variations of the positive auditory response; (3) the positive auditory responses of a wave and d wave show highly negative correlation in position F7; (4) individual differences will influence the auditory responses and (5) sex is another variable which will also influence the auditory response.