Alarm Sounds Review (Final) – December 2018

PLEASE NOTE: The information presented herein (including all audio files) is FINAL and for review and testing only.
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Introduction

The following Alarm Sounds are provided as part of the third Committee Draft (CD3) stage of development of Amendment 2 to IEC 60601-1-8. The closing date is February 1, 2019. 

Interested in Testing/Researching the Final Audio Files?

If you are an institution/company that wishes to conduct testing/research on these Final Alarm Sounds, please submit a testing protocol to Dr. Judy Edworthy at: j.edworthy@plymouth.ac.uk as soon as possible. Please be sure to include the following information in your proposal:

  1. The nature of the test, for example will you be testing learnability, urgency, likeability, reaction time, or some other measure? Will you require participants to listen to the sounds and to make a subjective response, or will you ask participants to do something on hearing the alarms?
  2. Who will you be testing, and how many participants will you test (approximately)? For example, will you be testing nurses, anesthesiologists, surgeons, patients, or some other participant group (or groups)? And how many participants do you intend to test?
  3. How will you present the sounds to the participants? For example, will you present them to a group of participants, play them once, many times, or some other regime?
  4. How do you intend analysing the data? In particular, will you be using descriptive statistics (graphs and tables), inferential statistics (t tests, analysis of variance) or a combination of the two?Will you be able to share your data with us for the purposes of development

Following review of your testing protocol, the alarm sounds will be made available to you for downloading/testing. 

 

Table 1 below contains the information presented in Table G.3 (p.37) of the draft. The sounds conform to the guidance given in Tables G.1 and G.2 of the draft.

TABLE 1 – CHARACTERISTICS OF THE AUDITORY POINTER
Alarm condition priority File name of auditory pointer
Low low.wav
Medium medium.wav
High high.wav

 

Table 2 below corresponds to Table G.4 (p.38) of the draft. 

TABLE 2 – CHARACTERISTICS OF THE AUDITORY ICON
Category of the source of the alarm condition Auditory icon metaphor Auditory icon description File name of auditory icon
Cardiovascular ‘Lup-dup’; heartbeat sound A stylized, square/triangle wave-based 'heartbeat' sound with no discernible frequency. Six PULSES formed from three 2-PULSE ‘lup-dup’ sequences cardiovascular.wav
Artificial perfusion Liquid disturbance, water churning, bubbles Two approximately 1 s sequences of a strong water bubbling sound, separated by silence perfusion.wav
Ventilation A single inhale followed by an exhale A 1 s inhaling sound (like white noise), followed by a 0,5 s gap, followed by a slow exhale with a long tail ventilation.wav
Oxygenation Irregular, stylized dripping/saturation Stylized irregular temporal pattern with some discernible pitch; a two-tone sequence superimposed on the six-tone pattern oxygenation.wav
Temperature/energy delivery Whistling kettle Complex sound including high frequency harmonics, rising slowly over approximately 2 s temperature.wav
Drug or fluid delivery/administration Shaking pill bottle Two 0,8 s sequences of a 4-rattle shaking sound drug_delivery.wav
Equipment or supply failure Starting up a motor that shuts down suddenly Spectrally complex sound of a motor revving up (increasing in frequency) over approximately 1,2 s then an abrupt stop tailing off for approximately 0,5 s failure.wav

 

 Table 3 below corresponds to Table G.5 (p.39) of the draft. 

Table 3 - CHARACTERISTICS OF THE AUDITORY ALARM SIGNAL
CATEGORY OF THE SOURCE OF THE ALARM CONDITION File name of the AUDITORY POINTER plus AUDITORY ICON
CATEGORY OF THE SOURCE OF THE ALARM CONDITION HIGH PRIORITY MEDIUM PRIORITY
Cardiovascular

HP-cardiovascular.wav

MP-cardiovascular.wav
Artificial perfusion

HP-perfusion.wav

MP-perfusion.wav
Ventilation

HP-ventilation.wav

MP-ventilation.wav
Oxygenation

HP-oxygenation.wav

MP-oxygenation.wav
Temperature/energy delivery

HP-temperature.wav

MP-temperature.wav
Drug or fluid delivery/administration

HP-drug_delivery.wav

MP-drug_delivery.wav
Equipment or supply failure HP-failure.wav MP-failure.wav