一种音频测试系统，适用于具有音频接收器之待测设备，包括隔音箱以及测试设备。隔音箱用以放置待测设备，以及包括收音设备以及发声源。测试设备与待测设备以及隔音箱耦接，用以控制发声源播放复数笔多音频测试数据，控制待测设备之音频接收器连续接收复数笔多音频测试数据，以及根据既定音频长度筛选待测设备所接收对应于复数笔多音频测试数据之第一音频信号，并根据第一音频信号得到第一测试结果，其中待测设备之音频接收器于接收复数笔多音频测试数据时维持致能状态。

An audio testing system adapted to a DUT (device under test) with an audio receiver is provided. The audio testing system includes a soundproof box and a testing device. The soundproof box is arranged to place the DUT, and comprises a microphone and a sound source. The testing device is coupled to the DUT and the soundproof box, controls the sound source to display a plurality pieces of multitone testing data, controls the audio receiver of the DUT to continuously receive the multitone testing data, and filters a first audio signal corresponding to the multitone testing data received by the DUT according to a predetermined audio length. Furthermore, the testing device obtains a first testing result according to the first audio signal. The audio receiver of the DUT continuously enabled when receiving the plurality pieces of the multitone testing data.