Family of applications PETRALEX Speech Communication consists of multiuser, multi-functional processors of incoming and outgoing audio signals in voice communication systems, designed to equip call- and contact-centers and used to increase business efficiency of voice communications. http://petralexsolutions.com info@petralexsolutions.com

1. PETRALEX Speech
Communication
Family of applications PETRALEX Speech Communication consists of multiuser,
multi-functional processors of incoming and outgoing audio signals invoice
communication systems, designed to equip call- and contact-centers and used
to increase business efficiency of voice communications.
Petralex
speech

2. TECHNOLOGIESTHAT IMPROVE
VOICE OF A CALL-CENTER
OPERATOR
MODIFICATION OF OPERATOR’SVOICE –“PERSUASIVEVOICE.”
This module is the most technologically
advanced of all our developments
for call centers.
We know the right way of voice
transformation!We analyzed researches
on this subject, made for over the last 20
years. In addition, we conducted our own
research. As a result, we have managed
to identify what kind of voice people find
persuasive, confident and serious.We
found out that people feel the greatest
confidence to the voice of a man, who
is a little older than middle-aged.
No“robot-like”voices – the technology
ensures profound voice transformation
preserving its absolute naturalness.
Call centers employ many young people
and people with high-pitched voice.
“Persuasive voice”mode is just necessary
for these operators.
Operation mode is best to estimate
when a young woman with high-pitched
voice uses it.
To adjust the mode operator needs
to specify his gender, after that our
analyzer“pulls out”all the necessary
characteristics of his voice.
Implementation effect: increased
confidence to the operator.
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3. MODIFICATION OF OPERATOR’SVOICE –“EXPRESSIVEVOICE.”
Technology, emotionally coloring user’s speech.This technology can help operators when
they feel tired and their voices lose vividness. It is also necessary for those, whose speech
is unemotional in itself.
This mode changes voice timbre.This is a subtle and delicate change, preserving
naturalness and recognizability of voice.
The effect of the technology is“cumulative”; it increases with the duration of dialog.
This module can be used in combination with“Persuasive voice”mode.
Implementation effect: increased expression of operator’s speech
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4. ANALYTICAL ASSESSMENT OF OPERATOR’SWORK
TO BE USED BY SUPERVISORS:
• How many times and for how long the operator activates the mode during a shift,
• For how long the mode was used / total time of all the talks (%)
• Average duration of conversations with the mode on and off (min.)
• Changes in operator’s speech* with the mode on and off
*Absolutevalue–speakingtimeoftheoperator,relativevalue–speakingtime
oftheoperator/totaltimeofalltheconversationswiththecallers.
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5. NO NEED FOR CALLERSTO STRAINTHEIR EARS – “COMPRESSION”.
Due to the new mode, a caller will be better able to hear operator’s voice and understand
his speech. Now the callers hardly need to strain their ears and ask again.
Soft sounds of operator’s speech become louder, while loud sounds remain unchanged.
Leading manufacturers of hearing aids use similar technologies as they are well proven.
Implementation effect: less pressure to the caller’s hearing, reduction of auditory
effort due to better speech intelligibility.
“MICROPHONE NOISE REDUCTION”
Technology filters sound arriving to a subscriber and eliminates unpleasant noises,
which may be heard as a result of:
• accidental contact with the headset microphone;
• when pronouncing aspirates, consonant sounds with a strong breathing,
like“P”, etc. (“Spitting”to the microphone).
Implementation effect: noise reduction and better quality of audio signal.
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6. “SPEED OF SPEECH”– AN INDICATOR OFTHE CURRENT
SPEED OF OPERATOR’S SPEECH.
Like speedometer in an automobile that helps driver to control the speed, – the speech
speed indicator informs the operator of exceeding the speed limit.This indicator does not
allow the operator to get inspired and speak hurriedly.
Implementation effect: using this indicator operator will be able to maintain
the right speed of speech, for maximum comfort of the caller.
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7. ANALYTICAL ASSESSMENT OF OPERATOR’S SPEECHTO BE USED
BY SUPERVISORS BASED ON“SPEECH SPEED”INDICATORS:
• average speech speed of a particular operator;
• how many times and for how long the limit was exceeded;
• total speaking time of the operator (min.) per shift;
• speaking time of the operator / total time of the conversation with the caller (%)
• total time of the conversations using a certain mode (min.) per shift;
• speaking time of the operator / total time of the conversation with the caller (%) –
for a specific voice mode.
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8. 8
TECHNOLOGIES
THAT IMPROVE PERCEPTION
OF OPERATOR’SVOICE
HIGH INTELLIGIBILITY OF SUBSCRIBER’S SPEECH + ACUTE HEARING
OFTHE OPERATOR – «PETRALEX HEARING IMPROVEMENT»
Sometimes to hear what the caller says on the other end is as hard as trying to imagine
the whole puzzle picture when seeing only a couple of pieces of it.
The proprietary technology improves listening comprehension of the operator, preserves
his hearing and reduces fatigue.
Thanks to our experience in the field of hearing improvement we have managed
to elaborate the world’s first range of applications for the hearing impaired, including
hearing aid, radio and music player.

9. The operator can use a variety of settings to customize the sound to his ears
and find the best, most comfortable adjustments.
Implementation effect: better perception of information by the operator,
less fatigue, minimizing professional harmful factors for hearing.
Analytical indicators to be used by supervisors based on the perception
level of the operator:
• changes in the operator’s hearing for the period of work;
• frequency of changes in the custom settings as an indirect indicator
of the operator fatigue.
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10. 10
CHANGINGTHE CALLER’SVOICE – “ANTISTRESS”MODE
Speech processing technology that makes the caller’s speech more relaxed.
There are situations when the user gets angry, rude, starts shouting, complaining, or pouring
out his irritation, grief, and tragic details for the operator to listen to.This results in a degree
of psychological stress for the operator.
The main objective of this mode is to reduce emotionality of the caller’s speech while
maintaining intelligibility and naturalness of his voice.
Implementation effect: lower stress level experienced by the operator,
higher level of service to the callers.
Analytical indicators for the supervisor:
• how many times and for how long the operator activates the mode per shift,
• time of use of the mode / total time of all the conversations (%)
• average speaking time with the mode on and off (min.)
• changes in operator’s speech* with the mode on and off
*Absolutevalue–speakingtimeoftheoperator,relativevalue–speakingtime
oftheoperator/totaltimeofalltheconversationswiththecallers.

11. “MEANS OF NOISE SUPPRESSION IN CALL CENTERS”
This is the newest noise abatement technology! Everyone knows that voice
of just 3 or 4 people talking on the phone at the same time, merge into a strong buzz.
Neither expensive noise insulating materials, nor specialized headset is capable
to cope with this noise.
Our technology helps the operator to hear the caller without increasing the volume
(if the noise comes from the call center itself). Unlike conventional noise suppressor,
which removes noise in the telephone line, this technology allows the operator to hear
speech through the surrounding noise.
UrbanDenoiser Player won first prize in the competition“Europe Cup developers”
organized by Microsoft in March 2015 that confirms the prospects of our technology.
Implementation effect: better listening comprehension of the operator, less fatigue
and less professional harmful factors for hearing.
Analytical indicators for the supervisor: improvement of the operator’s
noise environment.
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info@petralexsolutions.com