The effects of intelligible irrelevant background speech in offices – cognitive disturbance, annoyance, and solutions

Purpose – This paper aims to give an overview on four empirical studies which explored the impact of background speech on cognitive performance and subjectively perceived disturbance. Background speech is the most serious noise problem in shared-room and open-plan offices for employees who are supposed to do silent, concentrated work. Different measures of acoustic office optimization, as well as the outstanding role of the intelligibility of background speech for its disturbance impact, are empirically evaluated. Design/methodology/approach – The article provides a synopsis describing the core empirical results of four of our empirical studies. A survey study among office employees (n = 659) explored the subjective importance of office acoustics. Three experimental studies (n1 = 20; n2 = 30; n3 = 24) evaluated the effects of reduced background speech level, play-back of partial maskers and reduced speech intelligibility on cognitive performance and subjective ratings. Findings – Background speech is subj...

[1]  V Hongisto,et al.  A model predicting the effect of speech of varying intelligibility on work performance. , 2005, Indoor air.

[2]  M. Rashid,et al.  A Review of the Empirical Literature on the Relationships Between Indoor Environment and Stress in Health Care and Office Settings , 2008 .

[3]  Christina Bodin Danielsson,et al.  Difference in satisfaction with office environment among employees in different office types , 2006 .

[4]  Klaus Sedlbauer,et al.  Raumakustische Zielgrößen und Maßnahmen zur Optimierung der kognitiven Leistungsfähigkeit sowie des akustischen Komforts in Mehrpersonenbüros , 2011 .

[5]  Jukka Keränen,et al.  Speech privacy between neighboring workstations in an open office : A Laboratory Study , 2007 .

[6]  Jukka Keränen,et al.  Design of room acoustics for open offices , 2008 .

[7]  Esko Keskinen,et al.  Effects of Five Speech Masking Sounds on Performance and Acoustic Satisfaction. Implications for Open-Plan Offices , 2011 .

[8]  James L. Szalma,et al.  A Meta-Analysis of Performance Response Under Thermal Stressors , 2007, Hum. Factors.

[9]  E Keskinen,et al.  Performance effects and subjective disturbance of speech in acoustically different office types--a laboratory experiment. , 2009, Indoor air.

[10]  Jürgen Hellbrück,et al.  Background music as noise abatement in open‐plan offices: A laboratory study on performance effects and subjective preferences , 2009 .

[11]  E Keskinen,et al.  The effect of speech and speech intelligibility on task performance , 2006, Ergonomics.

[12]  Helena Jahncke,et al.  Cognitive performance during irrelevant speech: Effects of speech intelligibility and office-task characteristics , 2013 .

[13]  D. Berry,et al.  Disruption of office‐related tasks by speech and office noise , 1998 .

[14]  Eric Sundstrom,et al.  Office Noise, Satisfaction, and Performance , 1994 .

[15]  William J. Fisk,et al.  Some Quantitative Relations between Indoor Environmental Quality and Work Performance or Health , 2006 .

[16]  Hugo Fastl,et al.  Algorithmic modeling of the irrelevant sound effect (ISE) by the hearing sensation fluctuation strength , 2011, Attention, Perception, & Psychophysics.

[17]  Esko Keskinen,et al.  Perceived acoustic environment, work performance and well-being - survey results from Finnish offices , 2008 .

[18]  Jürgen Hellbrück,et al.  Combined effects of acoustic and visual distraction on cognitive performance and well-being. , 2012, Applied ergonomics.

[19]  J Nemecek,et al.  Noise in landscaped offices. , 1973, Applied ergonomics.

[20]  Philip Leistner,et al.  Sound Masking Performance of Time-Reversed Masker Processed from the Target Speech , 2012 .

[21]  A. T. Purcell,et al.  An alternative method for assessing the psychological effects of noise in the field , 1977 .

[22]  Francesco Martellotta,et al.  A new approach to assessing the performance of noise indices in buildings , 2003 .

[23]  S Klitzman,et al.  The impact of the physical environment on the psychological well-being of office workers. , 1989, Social science & medicine.

[24]  M Vorländer,et al.  The impact of background speech varying in intelligibility: Effects on cognitive performance and perceived disturbance , 2008, Ergonomics.

[25]  A. C. C. Warnock,et al.  Acoustical privacy in the landscaped office , 1973 .

[26]  P Paul F M Kuijer,et al.  The effect of office concepts on worker health and performance: a systematic review of the literature , 2005, Ergonomics.

[27]  T Houtgast,et al.  A physical method for measuring speech-transmission quality. , 1980, The Journal of the Acoustical Society of America.

[28]  Staffan Hygge,et al.  Irrelevant speech and indoor lighting: effects on cognitive performance and self‐reported affect , 2002 .

[29]  Yitzhak Fried,et al.  The joint effects of noise, job complexity, and gender on employee sickness absence: An exploratory study across 21 organizations — the CORDIS study , 2002 .

[30]  John Olson,et al.  Research about office workplace activities important to US businesses ‐ And how to support them , 2002 .

[31]  Diane Beale,et al.  Noise, psychosocial stress and their interaction in the workplace , 2003 .

[32]  S P Banbury,et al.  Office noise and employee concentration: Identifying causes of disruption and potential improvements , 2005, Ergonomics.

[33]  Maren Hawighorst,et al.  The relationship between the Speech Transmission Index and measures of cognitive performance , 2011 .