 Posted: Fri Jul 08, 2011 12:44 pm |
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| stevenliddle |
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| Joined: 24 May 2008 |
| Posts: 27 |
| Location: Sweden |
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| With the publishing of the 4th Ed. of IEC60268 Sound system equipment –
Part 16: Objective rating of speech intelligibility by speech transmission index there are several impriovements in the way STI is calculated as well how it should be reported in software environments.
When can we expect EASE to be updated?
Thanks
Steve Liddle
Springwell Audio Services
Sweden. |
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| Posted: Fri Jul 08, 2011 1:06 pm |
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| stevenliddle |
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| Joined: 24 May 2008 |
| Posts: 27 |
| Location: Sweden |
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| I thought I should mention some of the changes for those who don't have a copy yet.
RASTI is now specifically withdrawn/has become obsolete as a method for prediciting, calculating and measuring speech intelligibility.
Level masking is now afforded equations which describe a several gradients instead of the stepped functions for determining the level to be used in the masking functions.
There is now a section regarding how prediction software calculates and reports the predicted STI.
Qualification bands are introduced which augment the older Poor, Fair, Good, Excellent scale. |
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| Posted: Tue Nov 01, 2011 11:50 am |
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| PaulMalpasEA-d |
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| Joined: 01 Nov 2011 |
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| Location: Cambridge, UK |
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| These are all good improvements on STI. I too would welcome knowing which parts of the STI calculation is implemented in EASE and which not. And when we can expect EASE to catch up.
Paul |
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_________________
Paul Malpas
Engineered Acoustic Designs Ltd
07825 558 568 |
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