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首页> 外文期刊>Applied Acoustics >Auditory distraction by speech: Can a babble masker restore working memory performance and subjective perception to baseline?
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Auditory distraction by speech: Can a babble masker restore working memory performance and subjective perception to baseline?

机译：语音引起的听觉干扰：a不休的掩饰者能否将工作记忆表现和主观感知恢复到基线？

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摘要

Background speech has a detrimental impact on employees' privacy perception and cognitive performance in open-plan offices. Sound masking that covers speech sounds can help to improve the speech privacy and the ability to work undisturbed in open office environments. Recently, non-artificial sounds such as babble or water sounds have been suggested as masking sounds because they may be perceived as more natural and subsequently less annoying. This paper compares the working memory performance and annoyance perception during background speech that was masked by different babble sounds and a waterfall sound to speech that was masked by stationary noise with the frequency spectrum of the distracting background speech signal (target speech). In a first laboratory experiment the effects of different babble sounds were compared with the noise sound at a speech-to-noise ratio of- 3 dB. All subjects had to complete a serial short-term memory task and a questionnaire that covered subjective ratings. All sound conditions with masked target speech produced similar error rates and annoyance ratings as unmasked target speech. In a second laboratory experiment, the speech-to-noise ratio of target speech that was masked by babble consisting of 48 target speech signals was varied between -6 and -12 dB in steps of 3 dB. Target based babble resulted in similar error rates as stationary noise at -6 dB speech to-noise ratio but the findings suggest that target speech that is masked by babble might even be perceived as more annoying than speech that is masked by stationary target spectrum based noise.
机译：背景演讲对开放式办公室中员工的隐私感知和认知表现有不利影响。覆盖语音的声音遮罩可以帮助提高语音隐私性，并在开放的办公室环境中不受干扰地工作。近来，已经提出将诸如掩盖声音之类的非人工声音作为掩蔽声音，因为它们可能被认为更自然并且随后变得更少烦人。本文将注意力分散在背景语音信号（目标语音）的频谱上，将背景语音期间被不同的胡扯声和瀑布声掩盖的语音的工作记忆性能和烦恼知觉与固定噪声掩盖的语音进行比较。在第一个实验室实验中，以3 dB的信噪比将不同的胡言乱语的效果与噪声的效果进行了比较。所有受试者必须完成一系列的短期记忆任务和涵盖主观评分的问卷。带有目标语音掩盖的所有声音条件所产生的错误率和烦扰等级与未掩蔽的目标语音相似。在第二个实验室实验中，被48个目标语音信号组成的胡言乱语掩盖的目标语音的信噪比在-6和-12 dB之间变化，步长为3 dB。基于目标的胡言乱语导致的误码率与-6 dB语音信噪比下的固定噪声相似，但研究结果表明，被胡言乱语掩盖的目标语音甚至比被固定目标基频谱抑制的语音更令人讨厌。 。

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