Online listening testing with SenseLabOnline

Conduct online listening tests with recognised methods, structured workflows and automated analysis for audio product development.

Online listening test platform

SenseLabOnline is a web app for perceptual audio evaluation. It supports organisations that need to run double-blind listening tests online or in lab-based settings with recognised methods such as ITU and ISO templates. The need arises when teams must compare sound quality, listener preference, discrimination or product characteristics in a structured way. Without a defined setup, data collection and reporting can become biased and delay development decisions.

From setup to analysis

The platform covers the full workflow from test configuration and participant handling to online data collection and automated statistical analysis. It is relevant for both new users and experienced specialists working with larger studies. Randomised or controlled stimulus presentation, a neutral user interface and precise audio playback create a controlled basis for evaluation.

Woman wearing over-ear headphones during an online listening test in a quiet test environment. — SenseLabOnline supports structured online listening tests with controlled playback and participant handling.

Target group and benefits

Support audio and product teams with structured listening tests that generate documented results for comparison and evaluation.

Who the platform is for

SenseLabOnline supports teams working with perceptual evaluation of sound in product development. It is relevant for organisations from startups to global companies and for users ranging from newcomers to specialists designing complex studies. The platform is available in four editions – Light, Standard, Advanced and Enterprise – supporting different needs among teams working with listening tests.

How results are used

The results support practical decisions in development and evaluation work. Teams can review findings any time during a test, use documented outputs for internal comparison and continue with deeper analysis in raw data files. The service is part of our broader catalogue of sound quality services.

Plan your next listening test

Let’s discuss how SenseLabOnline can support your listening tests, participant setup and analysis needs across standard and advanced evaluation tasks.

Get more information

Use cases

Evaluate audio products and collect listener data to support development decisions and obtain documented test results.

ITU and ISO listening test templates

Use recognised templates such as ITU-R BS.1116-3, ITU-R BS.1534-3 (MUSHRA), ITU-T P.835, ITU-T P.800 and ISO-based sensory methods like Paired comparison, ABX, Triangle test, to run structured listening tests in a consistent format. These methods support reliable evaluation when comparing product variants, sound processing solutions or perceived quality across controlled stimuli.

Preference and product characterisation

Collect data on listener preference, product characterisation and discrimination through templates available in the Light edition and above. This supports early and mid-stage development where teams need structured listener input to compare alternatives and identify perceptual differences.

Advanced experiment design

Configure balanced-design and fractional-factorial studies in the Advanced edition for more complex evaluation programmes. This is relevant when several variables must be examined in one study and when the setup must support larger participant groups or multiple test questions.

Audio-visual and adaptive tests

Extend testing with synchronised audio-visual stimuli, personal media per assessor, adaptive training and scripted test logic in the Advanced and Enterprise editions. This supports tests that must reflect individual media conditions, include visual context or adapt to participant responses.

Facility specifications

Provide recognised templates, defined system requirements and automated analysis to support reliable listening tests and documented outputs.

Operating systems

Runs on Windows 10 and 11 in 32/64 bit versions, with limited support for MacOS and iPad OS.

Browser and hardware

Uses the latest version of Chrome, minimum screen resolution 1280x800 and minimum 4 GB RAM.

Audio formats

Supports WAV, FLAC and AAC, with other formats available subject to browser-dependent variations.

Sample rate and resolution

Handles sample rates up to 96 kHz and resolution up to 32-bit, depending on sound card capabilities.

Channel support

Supports up to 8 channels in Windows with some limitation, and N-channel playback in lab settings through a desktop app.

Data security

Secures data transformation with Secure Socket Layer and holds industry-standard code signing certificates.

Statistical analysis

Includes ANOVA, TUKEY HSD, mean scores with confidence intervals, interaction plots, assessor feedback, eGauge, HMFA, MDS, FADT, CATA, box-plots, density plots and spider plots. Automatic routines check data quality and basic assumptions before plotting the results.

Facility setup

Configure templates, playback options and test flows to match standard and advanced listening tasks.

Template-based configuration

Set up tests using templates from ITU standards, ISO methods and academic papers.

Test sequences

Group several tests into sequences for efficient execution and participant handling.

Stimulus presentation

Use randomised or controlled stimulus order depending on the test objective.

Browser or desktop player

Run tests in the browser through WebAudio. A dedicated Audio/Video player is also available using a Windows desktop app that ensures complete hardware control.

Edition levels

SenseLabOnline is available in four editions: Light, Standard, Advanced and Enterprise, defining the level of configuration, test complexity and analysis available.

Standard edition options

Includes the full template library, test sequences, automated analyses and Alternative Forced Choice templates for adaptive comparison testing.

Personal media per assessor

Enable individual media for each assessor in the Advanced edition.

Audio-visual and multichannel options

Add synchronised audio-visual testing, 4k raw video testing and multichannel loudspeaker reproduction through the Windows app.

Scripted and adaptive tests

Configure scripted test logic in Python and adaptive training or screening in the Enterprise edition.

Standards

Support recognised ITU and ISO methods and named test templates for structured audio evaluation and documented listening test execution.

Evaluation of high quality audio systems having small impairments. The ITU-R BS.1116-3 is a very sensitive method intended for the assessment of systems, which introduce impairments as small as to be undetectable without rigorous control of the experimental conditions and appropriate statistical analysis.
Assessment of sound quality for multiple systems. The ITU-R BS.1534-3 Multi Stimulus test with Hidden Reference and Anchor (MUSHRA) test is intended for the assessment of intermediate audio quality. Further, the method has shown to provide a reliable and repeatable measure of the audio quality of systems in a variety of technology domains.
Methods for subjective determination of transmission quality. The ITU-T P.800 recommendation describes a selection of methods suitable for evaluating the perceived transmission quality. It is typically applied in the telecommunications industry for evaluating both analogue and digital systems.
Methodology for evaluating Speech Communication Systems that include noise suppression. The ITU-T P.835 methodology is typically applied in evaluating systems that include noise suppression technologies. It is commonly used in the telecommunication industry for evaluating both uplink and downlink performance.
Methodology for objectively characterizing and measuring product characteristics. Sensory profiling, or Descriptive Sensory Analysis, is a strong method for describing products and differences between products.

Locations

Access SenseLabOnline with support from our team based in Hørsholm

Hørsholm

Venlighedsvej 4
2970 Hørsholm

Phone: +45 43 25 14 00
E-mail: info@forcetechnology.com

Stay updated on listening tests

Receive updates on listening test methods, features and audio topics relevant to product development.

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Pricing

How is SenseLabOnline priced?

All prices in EUR:

	Light	Standard	Advanced	Enterprise
Annual license fee	7,500	9,000	10,000	12,000
Included templates	Basic¹	All audio	All	All
Alternative Forced Choice Adaptive 2-AFC & 3-AFC		X	X	X
Simple video in the browser Include images or video			X	X
Design of Experiment			X	X
Media per assessor			X	X
Performance adaptation For training & screening				X
Scripted test				X
Support for all admins²		X	X	X

Included templates: Attribute test, ITU-R BS. 1534-3 (MUSHRA), 9-point hedonic, Triangle, Paired comparison, and CATA (Check-all-that-apply).

Light version support: Requires one admin to be the main admin. All support is only available through this person, such that he/she becomes super user over time and able to handle most support internally. A fee corresponding to an extra administrator account is changed for interchanging the main admin within the license period.

Description of the four editions

The new bundled editions are: Light, Standard, Advanced and Enterprise.

Light includes the most fundamental test templates, allowing the full benefits of the streamlined process of running listening tests within SenseLabOnline; Enabling collection of listener preference, product characterization and discrimination. It comes with limited support, but at a significantly reduced price point.

Standard is our core version of SenseLabOnline and features all the functionalities that current clients value: All our test templates from ITU standards and academic papers, easy test configuration, grouping of tests in test sequences, online data collection in a neutral user interface, randomized stimuli presentation order, and a battery of automated statistical analyses with accompanying plots. This edition will also include Alternative Forced Choice templates for adaptive comparison testing.

Advanced offers support for of custom design of experiment (DoE) for balanced-design, fractional-factorial designs, etc. Furthermore, the Media per assessor add-on enables test configurations with individual and personal media. Ideal for testing with hearing impaired participants or testing of individualizable products. In addition, this edition supports multi-modal testing of AV stimuli, e.g. for testing sound quality in a visual context.

Enterprise is our most comprehensible edition featuring two very powerful new add-ons. Performance adaptation is a flexible addition, which enables efficient adaptive training and screening of participants. From ensuring that inexperienced consumers understand the task before the main data collected, to professional training of assessors for sensory panels. The Scripted test type enabled fully customizable and adaptive tests configurable in Python. Among its merits are the ability to include multiple test interfaces in one test, scripted dynamic test plans and enhanced stimuli handling.

FAQ

What features are included?

Alternative Forced Choice includes adaptive versions of both paired comparison (2-AFC) and triangle tests (3-AFC). The stimuli presented in the next trial depend on the participant’s choice in the current trial.
Compared to static test procedures, the adaptive versions require fewer trials and terminate when a threshold or plateau is reached. The feature supports multiple stages and the hybrid weighted up/down convergence method. All stimuli are uploaded in advance.
This feature enables combining audio and video within the same test. It is designed for evaluating sound in the context of video or images.
Video can be presented in split-screen alongside the user interface or in a two-screen lab setup. The feature supports uploading video files with audio or separate audio and video files. Crossfade and zoom are supported to a limited extent.
Design of Experiment provides control over the presentation order within a test. While standard templates typically use automated full-factorial block designs with randomisation, DoE enables more customised test configurations.
This includes, for example, balanced designs, fractional-factorial designs and the use of hidden reference stimuli. The feature can also be used for data collection in machine learning and allows working with fewer or more factors than the standard template factors: System, Sample and Condition.
This feature is designed for tests where stimuli are individual for each participant, for example in personalised fitting for hearing aid users.
It enables combining all individual stimuli into a single test instead of creating one test per participant. This supports a more consistent test setup, improved efficiency and the possibility of combined statistical analysis. Data collection can begin as soon as the material for one participant has been uploaded.
Performance adaptation enables configuring tests with a predefined correct ranking of systems, products or DUTs. The feature can be used for both screening and training.
For screening, an initial test can act as a gating criterion for access to a main test. For training, assessors can receive feedback during the test, automatically repeat trials or terminate the test early depending on their results.

Related services and facilities

All services

Related insights

All insights

Reach out to Søren Vase Legarth for more information.

	Light	Standard	Advanced	Enterprise
Single-Sign-On (SSO)¹		(X)	(X)	(X)
Extra administrator accounts Four included	+ 750	+ 850	+ 850	+ 850
Server upgrade option 1: Regional server	+ 2,500	+ 2,500	+ 2,500	+ 2,500
Server upgrade option 2: Self-hosted²		+ 5,000	+ 5,000	+ 5,000
Extra accounts³ Within the same parent organisation. Incl. 2 extra administrators	2.: +50 % 3.: +40 % 4.: +30 % +5.: +20 %	2.: +50 % 3.: +40 % 4.: +30 % +5.: +20 %	2.: +50 % 3.: +40 % 4.: +30 % +5.: +20 %	2.: +50 % 3.: +40 % 4.: +30 % +5.: +20 %
Third party assessment⁴	1,600	1,600	1,600	1,600

	Light	Standard	Advanced	Enterprise
Single-Sign-On (SSO)¹		(X)	(X)	(X)
Extra administrator accounts Four included	+ 750	+ 850	+ 850	+ 850
Server upgrade option 1: Regional server	+ 2,500	+ 2,500	+ 2,500	+ 2,500
Server upgrade option 2: Self-hosted²		+ 5,000	+ 5,000	+ 5,000
Extra accounts³ Within the same parent organisation. Incl. 2 extra administrators	2.: +50 % 3.: +40 % 4.: +30 % +5.: +20 %	2.: +50 % 3.: +40 % 4.: +30 % +5.: +20 %	2.: +50 % 3.: +40 % 4.: +30 % +5.: +20 %	2.: +50 % 3.: +40 % 4.: +30 % +5.: +20 %
Third party assessment⁴	1,600	1,600	1,600	1,600

Conduct online listening tests with recognised methods, structured workflows and automated analysis for audio product development.

Online listening test platform

From setup to analysis

Support audio and product teams with structured listening tests that generate documented results for comparison and evaluation.

Who the platform is for

How results are used

Plan your next listening test

Evaluate audio products and collect listener data to support development decisions and obtain documented test results.

Provide recognised templates, defined system requirements and automated analysis to support reliable listening tests and documented outputs.

Configure templates, playback options and test flows to match standard and advanced listening tasks.

Support recognised ITU and ISO methods and named test templates for structured audio evaluation and documented listening test execution.

ITU-R BS.1116-3

ITU-R BS.1534-3 (MUSHRA)

ITU-T P.800 methods

ITU-T P.835

Sensory profiling

Access SenseLabOnline with support from our team based in Hørsholm

Stay updated on listening tests

How is SenseLabOnline priced?

The fee includes software access, updates, and support throughout the license period.Unique templates can be ordered with ad-hoc pricing.

Description of the four editions

Which additional options are available?

What features are included?

Alternative Forced Choice (AFC)

Simple video in the browser

Design of Experiment (DoE)

Media per assessor

Performance adaptation

Related services and facilities

Related insights

Evaluate audio products and collect listener data to support development decisions and obtain documented test results.

Provide recognised templates, defined system requirements and automated analysis to support reliable listening tests and documented outputs.

Configure templates, playback options and test flows to match standard and advanced listening tasks.

ITU-R BS.1116-3

ITU-R BS.1534-3 (MUSHRA)

ITU-T P.800 methods

ITU-T P.835

Sensory profiling

Access SenseLabOnline with support from our team based in Hørsholm

Stay updated on listening tests

How is SenseLabOnline priced?

The fee includes software access, updates, and support throughout the license period.Unique templates can be ordered with ad-hoc pricing.

Description of the four editions

Which additional options are available?

What features are included?

Alternative Forced Choice (AFC)

Simple video in the browser

Design of Experiment (DoE)

Media per assessor

Performance adaptation

Scripted tests

Single-Sign-On (SSO)

Third Party Assessment (TPA)

Server upgrade: Regional server

Server upgrade: Self-hosted

Related services and facilities

Related insights

Scripted tests

Single-Sign-On (SSO)

Third Party Assessment (TPA)

Server upgrade: Regional server

Server upgrade: Self-hosted