NetdB dBJury

Evaluate the Sound Quality of Your Product

	Overview
	Main Functions
	Applications
	Specifications
	Picture

OVERVIEW

dBJury: Evaluate the Sound Quality of your products!
As an application software dedicated to the subjective evaluation of your products sound quality dBJury gives access to ranking of sound recordings on a perceptual scale. dBJury enables to define listening sessions and listening procedures that drive the users along the evaluation process. The software is based on TCP/IP communication. Therefore, several evaluations can be performed at the same time on the same/different sessions on different PCs/Laptops. No specific organization such as room reservation, planning management is needed, leading to a highest reactivity in the diagnosis or design of industrial products.

Main functions

Developed in partnership with psycho acousticians of international fame

	Listening sessions can be conducted at the same time at any place in the world
	Stand alone sound evaluation application

The power of TCP/IP communication

	TCP/IP communication between a server application which controls the sessions database, and listener applications deployed on different PCs
	Safe databases stored on a unique PC.
	The results of the test are transferred in real time from the listener workstation
	The listeners are completely autonomous.
	The sound evaluation can be performed at any time, at any place without the assistance of a master person

The best algorithms and facilities for a relevant sound ranking

	Statistical algorithms implemented from the latest research of reputed research labs
	Creation of groups of listeners for comparative analyses
	Exportation of results for correlation with psychoacoustic parameters
	Exportation of preferences results for further analyses

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Applications

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SPECIFICATIONS

Sound calibration

	Importation of calibrated wav files
	Possibility to adjust the sound level manually or with a volume control
	Calibrated levels capabilities for different sound cards (Vxpocket V2, Vxpocket 440, Lynx One)

Headphone equalization

	Provision of standard equalization filters (real-time effective)
	Possibility to extend the list of equalization headphone filters (on request)

Methodology and statistical analyses

	Minimization of the evaluation subjectivity: wizard graphical principle, minimum choice principle, autonomy principle,
	Methods of evaluation: absolute, paired comparison and mixed approach
	Paired comparison according to Linear, Thurstone V, and BTL methods

Sessions set up

	Creation/edition/modification/duplication of sessions,
	Possibility to define 3 modes for each session: preparing, open and close

Follow-up of the session in progress

	Indication of the evaluation stage for each listener in the supervisor application
	Possibility to identify the listeners connected to the Jury testing server

Data edition and Export

	Group set-up
	Mean and confidence interval display
	Curve superimposition
	Cursor for sound selection and playback
	Preference result exportation in HTML format
	Copy/paste of graphics
	Exportation of the analysis results

Related products

	Professional sound card (VxPocket V2, VxPocket 440, Lynx One)
	High quality headphone (HD580, HD650)
	Cortex Manikin MK2B
	dBSonic psychoacoustic software

Product requirements:

	Recommended PC: Minimum configuration with Pentium IV (2.4 GHz) or Centrino with 512MB RAM, 40GB HDD
	XVGA display
	OS Win 2000 SP4 or Win XP SP1

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PICTURE

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