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  • lingWAVES  Client Manager
  • lingWAVES voice recorder
  • lingWAVES extended voice analysis
  • lingWAVES spectrogram
  • lingWAVES voice disorder index
  • real time spectrogram
  • theravox
  • theravox loudness
  • realtime spectrogram
  • motor speech disorder assessment
  • multi realtime
  • lingWAVES Voice Protocol
  • LingWAVES Voice Protocol (computer not included)

lingWAVES - SLP Suite Pro VPR Set

Please contact us for more information and pricing.

Product Description

Due to popular demand the SLP Suite Pro has been upgraded to include the essential Voice Protocol module with SPL Meter microphone and high quality Sound card in USB Connector cable.


lingWAVES SLT/SLP Suite Pro offers powerful basic and extended components for Speech and Voice assessment and biofeedback. The set includes a high quality voice recorder with extended voice analysis, easy to use patient/client database, a professional and up-to-date biofeedback system for voice and speech, real time spectrography, standard and extended voice analysis, hoarseness assessment, motor speech disorder assessment and Multi Real Tme assessment.

lingWAVES Basis with Voice Recorder, Client Database and Voice Disorder Index

Voice Recorder


High quality voice recording. Any SLP/SLT/Voice Clinic service relies on documenting information on therapy progress. An excellent way of documenting and archiving patient data is to record part or all of the examination/ therapy session. The main advantage of recording is that it affords the opportunity to diagnose the voice disorder more precisely, to compare the voice quality of the patient at the beginning, during and at the end of the therapy session and to review the evaluation later. lingWAVES Voice Recorder deals with this task in a modern and simple way.

The voice recorder also includes cut, copy, paste and delete functions for recordings.

Client/Patient Manager


lingWAVES offers two modes of operation for carrying out lingWAVES sessions. You can either work file oriented which would mean that you open analysis files on the menu and save them under an appropriate name of your choice, or you can work client oriented out of the client manager. The difference is that you have to create a client/patient in the client manager before you can carry out test activities connected to this patient. The files will be automatically saved. You do not have to take care of data management. The program will do it for you.

LingWAVES Voice Protocol

Revolutionary and Unique - a quick and easy 20 minute Standard voice assessment protocol - gives reliable and objective measures for voice assessment tasks used worldwide. View it in the video below.

A must - have for every clinic - whether you are a voice specialist or only see an occasional voice or Parkinsons client. Saves time in gathering and analysing data instantaneously and provides a clear instant printed report including progress tracking and outcomes. Read more

Standard Voice Analysis

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This set includes standard acoustical voice analysis like spectrogram, energy and pitch (fundamental frequency). It is easy to add voice analysis to each recorded voice signal. The whole analysis will automatically be saved in a project file. This means that you can reopen the voice record with the same analysis you have done before.

Print out the whole analysis and/or save the analysis as bitmap for further documentation (e.g. in word processing programs).

Voice Disorder Index (VDI)


The Voice Disorder Index (VDI) or Stimmstrungsindex (SSI) has been established as a reliable tool for describing voice-dependent quality of life.  This score was developed by Nawka and consists of 12 questions from the VHI. Voice Disorder Index/Voice Handicap Index correlation r=0.98. A useful outcome measure - documents improvements in voice related quality of life over time.

lingWAVES Client manger keeps track of scores and progress over time.

lingWAVES Vospector

Instantaneous and Reliable Voice Analysis


lingWAVES Vospector provides a set of clinically useable quantitative acoustic analyses that reflect important aspects of voice. The lingWAVES Vospector standard measurements are made on sustained vowels, and include minimum, maximum, average and standard deviation for fundamental frequency, jitter (period to period variation in the fundamental frequency), shimmer (period to period variation in the amplitude) and GNE (glottal to noise excitation ratio).

Acoustic Correlates of Perceptual Attributes of Voice according to the RBH/ORB Rating System

Separate measurements add up to yield further voice parameters like irregularity, noise and overall severity of dysphonia that can be regarded as objective counterparts to R (roughness), B (breathiness) and H (hoarseness) components of the RBH/ORB (Cape-V) rating system for the perceptual evaluation of dysphonia. 

Click here for more information on Vospector measurement specifications and norms.



lingWAVES Theravox - Voice and Speech

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TheraVox is a set of interative activities designed for engaging practice of voice and speech motor skills with visual feedback. It consists of a series of exercises for speech therapy in which voice and speech elements like voicing/voice onset, loudness, articulation/coarticulation and prosody are transformed into real time graphics. The patient receivs visual feedback for qualitative and quantitative attributes of his voice, which is of crucial importance for enhancing self-monitoring skills in speech therapy.

TheraVox can also be purchased separately or in a set with the client manager, recording and Real Time Spectrogram. Click here to view more details.

Real Time Spectrogram


The Real Time Spectrogram provides a dual-screen with time signal display and spectrogram analysis during signal recording. Spectrogram parameters such as wide to narrow-band, color, frequency range and display parameters such as dual or one-screen may be adjusted. In the one-screen mode you can show a full size spectrogram with a time axis adjustable from 5 to x hundred seconds. The recording can partly or full saved as sound file for further analysis. The Real Time Spectrogram session can be saved as project file, showing the same display after reloading.

This real time display is ideal for therapy and clinical biofeedback showing all kinds of sounds and other acoustical parameters of voice and speech. Spectral analysis is especially recommended for use improving accuracy of voice and speech elements in clients with hearing impairments and is ideal for ambitious therapists.

More information

Multi Real Time Display


Multi Real Time is an extended Real Time Spectrogram showing additionally fundamental frequency/pitch and energy during signal recording. Multi Real Time shows acoustic parameters such as time signal, spectrogram, pitch and energy during voice and speech production without time delay in real time. In many cases this tool is used to compare vocalization and pronunciation between speech therapist (target) and patient (trial) with the benefit of both graphically and auditory feedback.


Motor Speech Disorder Assessment (MSDA)


The MSDA module is a new technology tool to analyze and show the voice and speech parameters of motor speech disorders. The new technology analyzes recorded speech within seconds. it enables you to do a quick DDK assessment within seconds and track progresss (or progression of disorder) over time.

 The result is a concise report of numerical parameters at a glance.

More information


Recording with standardized Data Sound Level Meter

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Due to technical limitations, a real and precise measurement of sound pressure level (SPL) is not possible with common soundcards or soundcard calibrated systems. They all provide only a relative SPL (dBr) hardly usable for standardization and comparison measurments (e.g. required for UEP norm) in the clinical area.

lingWAVES Voice Clinic Suites use a real SPL sound level meter-microphone with a lingWAVES Connector USB. The recording hardware provides SPL data from 40 - 130 dB, resolution 0.1 dB and an accuracy of +/- 1.5 dB. All measurements are made in dBA. The recording hardware needs NO calibration on a computer. Results are not only comparable on one computer, but also with any other computer using lingWAVES REAL SPL technology.

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lingWAVES Connector USB includes a Hi-Fi plug & play sound card for clear voice signal recordings. There is no need to use e.g. poor quality notebook sound cards.


 What is included in the different lingWAVES sets?

Download an introductory SLP Suite Pro Tutorial (7 MB - PDF)

Download the SLP Suite Pro Handbook (7 MB - PDF)

Download the SLP Suite Pro Installation Instructions  (0.8 MB - PDF)

System Requirements


  • OS: Windows 10
    ( Mac OS with Boot Camp and installed Windows OS 10)
  • Hardware: min. Core i5, min. 8 GB RAM (recommended 16 GB RAM, min.16 GB RAM for video modules[strobo/endo/FEES]), 500 GB hard disk space for data (smartENDOSTROBO 1TB - external USB 3.0 hard disk possible), speaker, 1 - 2 x USB (smartENDOSTROBO powered USB recommended)

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