NIQA is a non-intrusive voice quality analyzer tool that assesses call quality without a reference call. It provides reliable MOS quality scores that are as or more accurate than ITU standards. NIQA allows real-time monitoring of voice quality to detect issues, improve quality proactively, and ensure good customer satisfaction. It is available as an installable software or as a turnkey solution, and supports various platforms with no licensing fees.

1. FAST AND EASY –
NO REFERENCE
NEEDED
NIQA makes quality evalu-
ation based on actual
call audio, no reference
required.
RELIABLE
QUALITY SCORING
NIQA MOS scores are of
similar or higher accuracy
than in ITU-T P.563 stan-
dard.
ASSESS VOICE QUALITY
IN REAL TIME BY NIQA
NIQA allows network own-
ers to receive notifications
about voice quality degra-
dation, detect problematic
trunks, destinations and
initiate proactive mainte-
nance.
PROACTIVE APPROACH
NIQA will inform your
maintenance team to take
immediate actions on qual-
ity improvements before
receiving complains from
your valued customers.
NIQA – Non-intrusive Voice Quality Analyzer
Non-intrusive voice quality measurements are pas-
sive methods for measuring voice quality on traffic
generated by existing callers. The measurements
can easily be applied both for packet-switched and
circuit-switched networks.
Non-intrusive testing is a simple and cost effective,
which is not using bandwidth or traffic resources
being fully software based. Non-intrusive methods
that return speech quality score (MOS) are the key
means for measuring actual callers’ traffic.
Sevana NIQA (Non-Intrusive Voice Quality
Analyzer) technology is based on a database of
trained etalon associations. Each association cor-
responds to a group of files that have close expert
estimations of sound quality and common set of
reasons for sound quality degradation.
Sevana NIQA has been tested utilizing the same ITU-T
speech database that is used for conformance testing of
P.563 algorithm.
Atotal of 376 English language recordings passed through
the system during testing phase. All recordings were
sorted into 4 groups depending on their MOS scores
(represented in the documentation attached to the sound
database).
For all groups of recordings we figured out an average
expert score and average NIQAscore. In order to illustrate
comparison with P.563 we also calculated average errors
for P.563 and NIQA scores for the same tests.
Tests clearly show that NIQAallows receiving much higher
accuracy between generated quality scores and expert
estimations.
Growing business cannot afford loosing customers
due to bad quality.
NIQA helps to automatically predict end-user sat-
isfaction. One should be aware that SLA is kept
valid.
NIQA allows:
● Real-time monitoring
● Easy network testing, enabling quick optimization
● Fast reliable fault detection
● Proactive customer support
● No royalties or other annual fees
● Professional tool accessible to everyone
● Outstanding value – ask for an offer!
All rights reserved. Sevana Oy may change the content of products and services without any prior notice.

2. Sevana
IT Solutions & Services
Agricolankatu 11
00530 Helsinki, Finland
Phone +358 9 231 64165
info@sevana.fi
SERVICES AVAILABLE
Technical Support
Installation and Setup
Maintenance
Application Support
Consulting
Updates
Features and Benefits
System Requirements
NIQA is available for all platforms
● Linux
● Windows
● MAC
● 32 and 64 bit
NIQA is available as a library for customer solutions both
for Linux and Windows.
NIQA performance is outstanding limited only by hard-
ware capabilities.
CUSTOMER
SATISFACTION
Call quality is a key factor
defining your valued cus-
tomers´ satisfaction. NIQA
provides you with a state-
of-the-art professional qual-
ity measurement tool allow-
ing to simply and effec-
tively detect any deviations
in voice quality to moni-
tor real time performance
and effectively manage the
quality experience of your
customers.
TURNKEY SOLUTIONS
In addition to extensive
technical support includ-
ed in software package,
NIQA is also delivered as
full turnkey solution fit-
ted to the customer envi-
ronment with all services
included. As the most
comprehensive solutions
NIQA is offered as SaaS
(Software as a Service).
FOR MORE
INFORMATION
on any of our products or
services please visit us on
the Web at: www.sevana.fi
All rights reserved. Sevana Oy may change the content of products and services without any prior notice.
NIQA is available as a server solution without any limita-
tions on the amount of simultaneous tests.
NIQA license does not involve any royalty or other annual fee.
NIQA is available for all platforms and servers (32 bit and 64
bit, Windows, Linux, MAC).
NIQA is easy to deploy and use for products and solutions
development.
NIQA provides prediction of voice quality (MOS-like score)
and can be utilized in VoIP, PSTN, ISDN, GSM, CDMA,
LTE/4G networks and combinations of those.
NIQA is also available as a service.