acoustic intelligence for smarter working
TRANSCRIPT
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Acoustic Intelligence for Smarter Working
Richard RogersHead of B2B Marketing, Europe & Africa
September 2014
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For internal use only. © Plantronics 2014. All Rights Reserved.
Smarter Working is on the riseCollaboration Must Be Easy:
• New workspaces in and outside the office
• Explosion of virtual collaboration tools & technologies to learn
• New behaviours to master
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For internal use only. © Plantronics 2014. All Rights Reserved.
Acoustic Challenges of Modern Work Often Overlooked
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For internal use only. © Plantronics 2014. All Rights Reserved.
Space Telecoms Personal
Acoustic Intelligence Framework to Improve your Business Communication
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Spaces
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Workspaces are changingNew Style Offices
Working from “Elsewhere”
Increasing Noise Challenges
• Impact of acoustics often overlooked in modern office design
• Reduced privacy
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Biggest Complaints of Office Workers:
Source: University of California, Berkeley (2007)
1. Noise2. Lack of Speech
Privacy
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70% of office workers believe they would be more productive in a less noisy environmentSource: American Society of Interior Designers (ASID) (1997)
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81% of Managers are unconcerned about office noise
Source: Occupational Health & Safety Magazine (2002) [follow-up ASID Study]
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Acoustic Challenges Inside the “New” Office• Less physical barriers in
open plan designs
• Lack of sound absorption material used on ceiling, walls & floors
• Speech being too intelligible:
• Limited private spaces
• Workstations design (partitions)
• No management of variable noise levels
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Acoustic Shielding to Manage Noise in the officeProvide Superb acoustic performance for a optimal working environment based on Acoustics “ABC”:
• Absorption
• Blocking
• Cover
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Address Speech Privacy with Wireless Headsets
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Active noise-canceling technology to help focus better in noisy environments
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Telecoms
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Business communication is evolving rapidly• Explosion of mobile devices
• Multiple platforms for telephony
• Unified Communications
• Increasing network challenges
• Diverse set of work locations
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Professional Headsets Enhance Telecommunications Speech Quality
Improves a Wideband Communications System
Reduces Transmission of Background Noise
Enables High Sound Quality & Naturalness
Minimises Double Talk Interference
Adapted from: Advanced speech quality testing of modern communication equipment: An overview, H.W. Gierlich & F. Kettler (2005) [HEAD Acoustics GMBH]
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A professional headset provides a superior wideband experience to a traditional handset• Headset provides tighter
coupling to the ear
• This prevents lower frequency sound “leaking”
• Headset user enjoys richer, more natural sound
Source: H.W. Gierlich, HEAD Acoustics (2005))
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Background Noise Reduction• Background noise impacts
speech intelligibility
• Technology in a professional headset works to cancel out this noise
• Receiver hears more of speaker’s voice in relation to surrounding background noise
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Advanced Noise Cancelling with Voyager Legend
3x Mics cancel out background and wind noise for professional sound, calling from anywhere
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Headset speaker specification & frequency supported are key factors• Reference frequency
ranges:• Human ear - 12 Hz to 20
kHz
• Narrowband telephony- 300 Hz to 3.4 kHz
• Wideband telephony - 150 Hz to 6.8 kHz
• Hi-Fi Sound - 20 Hz to 20 kHz
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Plantronics Blackwire Stereo Headsets>Speakers specification 20Hz to 20kHz for more “natural”
sound and a richer Hi-Fi multimedia experience>“Dynamic EQ” feature– the speakers adjust frequency
response to optimise for telephony or listening to multimedia
Blackwire 720 Blackwire 520 Blackwire 320Blackwire 725
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Reducing double-talk (echo) on the call• Professional audio devices
include echo cancellation technology
• Echo cancellation prevent sound coming through the headset speaker being picked up by the microphone and re-transmitted back to the person talking
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Personal
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Smarter Working requires:Higher levels of virtual collaboration
• Voice is a critical component collaboration technology
• Different from traditional face-to-face communications
3 critical factors to optimise:
1. Audio Ergonomics
2. Voice Intelligibility
3. Speech Impact
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Virtual interaction is Fundamentally Different
Voice OnlyFace-to-Face Voice Only
Body Language
55%Face To Face: Mehrabian, A. (1971). Silent messages. Wadsworth, Belmont, California.
Telephone: Mehrabian, Albert & Morton Wiener (1967): Decoding of inconsistent communications. Journal of personality and social psychology 6(1): 109-114.
Tone of Voice 38%
Message 7%
Tone of Voice 87%
Message 13%
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Audio Ergonomics – The Right Design
Wall of Ears Acoustic Sound Chamber
Iconic Designs
50+ years of Excellence in Acoustics, Ergonomics & Design
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Audio Ergonomics – Comfort (Acoustic Protection)>Provide employees protection against
uncomfortable loud sounds >Noise At Work Directive (2003/10/EC) specifies
limits for long term (daily) noise exposure of employees
>Ongoing engagement with various organisation e.g. DECT Forum / TCO / HSE & WW standards
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Plantronics Products for Maximum Acoustic Protection
>TCO-Edge certified>N@W compliant
>Fast-acting limiter that reduces loud noises
>Limits average sound level to 85 dB over an 8-hour
CS 510/20 Savi 740 Blackwire 720
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Voice Intelligibility – The Right Technology
Mobile Devices Unified Communications
Professional Headset
Fast Internet Connection
Appropriate Workspace
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Speech Impact – The Right Conversation
>Beyond voice transmit/receive>Being understood (content)>Engagement and impact (results)
>How your voice works>Lungs and cords ... keeping them fit>Power-Pace-Pitch-Pause
>Storytelling>Standing up rather than sitting
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Plantronics Support
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The Plantronics Proposition:
• International experience with recent office re-designs and Smarter Working to learn from
• 50+ years expertise experience in personal device acoustics
• Innovative audio devices to help associates manage disruptive sound in the modern workspace
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