COPYRIGHT © All rights reserved by Sound acoustics Germany HASQUE_W Development tool for audio systems Hearing Adequate Signal Quality Estimation COPYRIGHT © All rights reserved by Sound acoustics Germany

COPYRIGHT © All rights reserved by Sound acoustics Germany Test conditions The evaluation of signal processing systems requires various test cases as… COPYRIGHT © All rights reserved by Sound acoustics Germany

COPYRIGHT © All rights reserved by Sound acoustics Germany Test conditions The evaluation of signal processing systems requires various test cases as… Various speakers Male Female Different languages COPYRIGHT © All rights reserved by Sound acoustics Germany

COPYRIGHT © All rights reserved by Sound acoustics Germany Test conditions The evaluation of signal processing systems requires various test cases as… Various speakers Male Female Different languages Various distortions Echoes (acoustic and line) Reverberation Non linear distortions COPYRIGHT © All rights reserved by Sound acoustics Germany

COPYRIGHT © All rights reserved by Sound acoustics Germany Test conditions The evaluation of signal processing systems requires various test cases as… Various environment noise Street Car Airport People Clean Various speakers Male Female Different languages Various distortions Echoes (acoustic and line) Reverberation Non linear distortions COPYRIGHT © All rights reserved by Sound acoustics Germany

COPYRIGHT © All rights reserved by Sound acoustics Germany Test conditions The evaluation of signal processing systems requires various test cases as… Various bandwidth limitations Various environment noise Street Car Airport People Clean Various speakers Male Female Different languages Various distortions Echoes (acoustic and line) Reverberation Non linear distortions This requires a lot of expensive subjective listening tests COPYRIGHT © All rights reserved by Sound acoustics Germany

HASQUE_W Development tool for audio systems How long do you need for the evaluation of the quality enhancement of a new system based on 64 test cases for a reliable statement? COPYRIGHT © All rights reserved by Sound acoustics Germany

HASQUE_W Development tool for audio systems needs 2 minutes simulation time COPYRIGHT © All rights reserved by Sound acoustics Germany

HASQUE results after 2 minutes simulation Quality measures of various test cases at one sight Bandwidth Street Car BW +Car Bandwidth Street Car BW +Car Female speaker Male speaker COPYRIGHT © All rights reserved by Sound acoustics Germany

HASQUE_W Development tool for audio systems A lot of valuable add on information about the signal properties becomes possible with this tool All following figures are created by HASQUE_W -> COPYRIGHT © All rights reserved by Sound acoustics Germany

Quality measures of various test cases at one sight COPYRIGHT © All rights reserved by Sound acoustics Germany

Legend: Overall averaged MOS and distortion levels of all test cases Quality measures of all test cases at one sight COPYRIGHT © All rights reserved by Sound acoustics Germany

Selection of test case results 5 Legend: Quality measures and distortions of the selected test cases Selection of test case results 5 COPYRIGHT © All rights reserved by Sound acoustics Germany

Selection of test case results 5 Legend: Quality measures and distortions of the selected test cases Selection of test case results 5 Fast access for sound play of each selected test case COPYRIGHT © All rights reserved by Sound acoustics Germany

Selection of test case results 6 Legend: Quality measures and distortions of the selected test cases Selection of test case results 6 Fast access for sound play of each selected test case COPYRIGHT © All rights reserved by Sound acoustics Germany

Selection of test case results 8 Fast access for sound play of each selected test case COPYRIGHT © All rights reserved by Sound acoustics Germany

COPYRIGHT © All rights reserved by Sound acoustics Germany Immediate access to pcm representation PCM signals of test 5 COPYRIGHT © All rights reserved by Sound acoustics Germany

COPYRIGHT © All rights reserved by Sound acoustics Germany Immediate access to pcm representation PCM signals of test 6 COPYRIGHT © All rights reserved by Sound acoustics Germany

COPYRIGHT © All rights reserved by Sound acoustics Germany Immediate access to pcm representation PCM signals of test 8 COPYRIGHT © All rights reserved by Sound acoustics Germany

Audible distortions test 5 Immediate access to the representation of audible distortion Audible distortions test 5 COPYRIGHT © All rights reserved by Sound acoustics Germany

Selection of the most significant distortions of test 5 Zooming of most significant distortions for individual frequency analysis or sound play Selection of the most significant distortions of test 5 COPYRIGHT © All rights reserved by Sound acoustics Germany

The corresponding PCM signals of test 5 Zooming of most significant distortions for individual frequency analysis or sound play The corresponding PCM signals of test 5 Zoomed Audible distortions test 5 COPYRIGHT © All rights reserved by Sound acoustics Germany

Audible distortions test 6 Immediate access to the representation of audible distortion Audible distortions test 6 COPYRIGHT © All rights reserved by Sound acoustics Germany

Audible distortions test 7 Immediate access to the representation of audible distortion Audible distortions test 7 COPYRIGHT © All rights reserved by Sound acoustics Germany

Complete speech spectra of test 5 COPYRIGHT © All rights reserved by Sound acoustics Germany

Zoomed speech spectra of test 5 (Critical bands 9 and 10) COPYRIGHT © All rights reserved by Sound acoustics Germany

Zoomed speech spectra of test5 COPYRIGHT © All rights reserved by Sound acoustics Germany

Zoomed speech spectra of test 6 COPYRIGHT © All rights reserved by Sound acoustics Germany

Zoomed speech spectra of test 7 COPYRIGHT © All rights reserved by Sound acoustics Germany

Complete pause spectra of test 5 COPYRIGHT © All rights reserved by Sound acoustics Germany

Zoomed pause spectra of test 5 COPYRIGHT © All rights reserved by Sound acoustics Germany

Zoomed pause spectra of test 6 COPYRIGHT © All rights reserved by Sound acoustics Germany

Zoomed pause spectra of test 7 COPYRIGHT © All rights reserved by Sound acoustics Germany

Individual selections in time domain for individual frequency analysis COPYRIGHT © All rights reserved by Sound acoustics Germany

MOS matched spectral analysis COPYRIGHT © All rights reserved by Sound acoustics Germany

Spectral analysis with high time resolution COPYRIGHT © All rights reserved by Sound acoustics Germany

Spectral analysis with high frequency resolution COPYRIGHT © All rights reserved by Sound acoustics Germany

Zoomed spectra with high frequency resolution COPYRIGHT © All rights reserved by Sound acoustics Germany

Original test cases with time and gain shift Observation of time and gain shifts between reference and two test signals Original test cases with time and gain shift COPYRIGHT © All rights reserved by Sound acoustics Germany

Time aligned test cases Observation of time and gain shifts between reference and two test signals Time aligned test cases COPYRIGHT © All rights reserved by Sound acoustics Germany

Time and gain aligned test cases Observation of time and gain shifts between reference and two test signals Time and gain aligned test cases COPYRIGHT © All rights reserved by Sound acoustics Germany

HASQUE-W Effort Real effort for the simulation of former tests < 2 minutes ! Estimated effort with HASQUE_W versus manual operation with subj. listening tests COPYRIGHT © All rights reserved by Sound acoustics Germany