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| The latest version of the
analysis
system ACQUA (version 2.3) has been released recently.
Taking the requests and suggestions of many ACQUA
users into account, the HEAD acoustics developers, supported
by the Telecom consulting and sales teams, again achieved
numerous improvements with regard to speed, ease of use
and functionality. |
| Highlights of Version 2.3
are the support of the new VoIP front end MFE VIII as
well as the following new features: |
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Simultaneous search in several data bases
incl. combined representation of curves in one diagram |
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Storage of up to five mouth equalizations |
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Automatic adjustment of playback level
within set marks by speech level specification (for comparing
signals with very different levels) |
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Delta Relative Approach Analysis |
| The latter is a continuation
of the powerful Relative Approach Analysis. It serves
to verify the "originality" of a transmitted and processed
signals from the auditory perception of the human ear.
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| The three-dimensional Delta
Relative Approach Analysis allows to verify whether the
user's expectations on the quality of the signal processing
(e.g. with noise reduction) are fulfilled. |
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| Test example:
"Delta Relative Approach" analysis clearly reveals impairments
Screenshot TIA-810
(Rev04) |
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| In previous Telecom HEADlines
issues we already informed you on new developments with regard
to ACQUA
measurement standards. As could be expected, further updates
and new standards have been released in the mean time, which
is summarized in the following short overview: |
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| Voice quality analysis of
narrowband digital telephones; updated because standard
ANSI/TIA/EIA-810A has been superseded by Version 810B
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| updated again, e.g. now
also fulfills the requirements of the Vodafone test specification |
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| contains test sequences
required for IP gateways |
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| contains test sequences
required for IP phones |
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| For most of the standards and
testing tasks they entail, suitable ACQUA
compact systems are also available. For more detailed information
please do not hesitate to contact us. |
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News, Events & Publications 
Various
News Regarding ACQUA
