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KLIPPEL LIVE - Free of charge web-seminars

Acoustical Measurement of Sound System Equipment according to IEC 60268-21

KLIPPEL LIVE is an informative new webinar series as we continue to educate and support loudspeaker designers and manufacturers around the globe. To kick this off, we start with a 15 part series about using the IEC 60268-21 acoustical measurement standard, perfect for anyone working with speakers, headphone and other audio devices. 


This includes practical information regarding:

  • Quickly and accurately measuring in normal, non-anechoic rooms

  • Comprehensive distortion testing

  • Linking physical and perceptual evaluation 

Along the way, we give tips and discuss how to:

  • Interpret measurement results
  • Avoid pitfalls  

At the end of each live webinar, we will answer questions submitted by you, the viewer.


Detailed module comparison chart for IEC Standard 60268-21.

Upcoming Web-Seminar

Part 14: Setting Meaningful Tolerances for Signal Distortion

The next session addresses setting limits to balance cost vs performance (including perceptual) and reliability in order to maximize the end-user value of an audio product.


Date: Wednesday, 12th August 2020

Start at 5:00 pm (CEST)


» Registration 

Section Agenda

  • Audibility threshold under critical condition
  • Perceptual audio quality measured with music
  • Modeling the perceptive processing in our ears
  • Our brain decides about the audio quality
  • Maximizing the end-user value

Web-Seminar Overview

DateSessionRegistration Replay WebinarHandout中文版讲义
April 22th, 20201. Modern Audio Equipment Needs Output Based Testing                                    closedLink Session 1


课程 1
April 29th, 20202. Standard Acoustical Tests Performed in Normal Rooms closedLinkSession 2


课程 2
May   6th, 20203. Drawing Meaningful Conclusions from 3D Output Measurement closedLinkSession 3


课程 3
May 13th, 2020

4. Simulated Standard Condition at an Evaluation Point 

closedLinkSession 4KLIPPEL 腾讯视频课程 4
May 20th, 20205. Maximum SPL – Giving this Value Meaning closedLinkSession 5KLIPPEL 腾讯视频课程 5
May 27th, 20206. Selecting Measurements with High Diagnostic Value closedLinkSession 6KLIPPEL 腾讯视频课程 6
June 3rd, 20207. Amplitude Compression – Less Output at Higher Amplitudes closedLinkSession 7KLIPPEL 腾讯视频课程 7
June 10th, 2020

8. Harmonic Distortion Measurements – Best Practice 

closedLinkSession 8KLIPPEL 腾讯视频课程 8
June 17th, 20209. Intermodulation Distortion – Music is More than a Single Tone closedLinkSession 9KLIPPEL 腾讯视频课程 9
June 24th, 202010. Impulsive Distortion - Rub&Buzz, Abnormal Behavior, Defects closedLinkSession 10KLIPPEL 腾讯视频课程 10
July 22nd, 202011. Pitfalls in Testing Wireless Audio DevicesclosedLinkSession 11KLIPPEL 腾讯视频课程 11
July 29th, 202012. Benchmarking of Audio Products Under Standard ConditionsclosedLinkSession 12KLIPPEL 腾讯视频课程 12
August 05th, 202013. Auralization of Signal Distortion – Perceptual EvaluationLinkLinkSession 13
August 12th, 202014. Setting Meaningful Tolerances for Signal Distortion LinkComing soon
August 19th, 202015. Rating the Maximum SPL Value for a Product Link Coming soon