Jade Noise Professional 2 is the cost-effective solution to capturing and analyzing noise data. Simply attach a sound level meter to a computer using a standard PC sound card and you instantly have a noise capture system. Use Jade Noise to record sound levels, mark noise events and note observations, and then view the resulting data. Zoom in and out of the charts to view the data at different levels of detail, edit your observations, and print your charts and notes. Finally, include both charts and notes in a report using your preferred word processor or even export the data to a spreadsheet application.
Picture: Jade Noise 2 chart viewer in use
Jade Noise displays both running statistics during data capture (which are continuously updated) and the final statistics when viewing the resulting data. Furthermore, when viewing the resulting data you have two sets of statistics to hand: those for the visible chart and those for the entire measurement period. Jade Noise provides a wide range of statistics, including Lmax, Leq, Losha, Lavg, Lep,d, Ldn, Lden (CNEL), L10, L90 and many more. You can even choose fractional Ln values if you wish, such as L99.8.
The full statistics can be either printed on charts or exported to a text file for inclusion in reports.
Use Jade Noise's data capture facility to perform either a preview (quick test) capture or a full data capture session, during which data is automatically saved to a file for future analysis. You can also record noise events as they happen - and even note any additional observations.
To help you watch progress during data capture, Jade Noise displays the data in chart form as it is received from the sound card and processed. You can choose the type of chart trace with which to view the data. For example, you can choose an Ln or Leq trace, or just a simple sound pressure level or Lpk trace.
And at the bottom of the chart Jade Noise shows the actual time on the chart axis, so you can relate the data to the correct time.
Picture: Jade Noise 2 data capture in use
Jade Noise has a highly automated calibration facility to make calibrating the system quick and easy. For example, Jade Noise selects the most suitable meter range for calibration based on your choice of meter and calibrator.
For further peace of mind, you can choose to validate the accuracy of the meter after a full data capture session. Jade Noise provides you with a summary of how reliable the readings were at the end of data capture - a useful feature for particularly long data capture sessions.
Data Sampling Rates
Jade Noise samples the raw data received by the PC sound card at up to 44100 times a second. This is then synthesized into Lp (sound pressure levels), Lpk values and Leqs for storing in the measurement file. Generating all three types of data means that meaningful statistics can be generated. Data is typically stored in the file at a rate of five times a second, but you can store data at a rate of up to 50 times a second.
Recording Noise Events
Recording noise events as they happen during a full data capture session is easy with Jade Noise's customizable event labels (codes) - including a special "Ignore Data" label. Just use a single mouse click on the event bar at the bottom of the window - or an easy short-cut keyboard combination - to attach an event label to the data, and the event is recorded. You can even record more than one event at the same time.
And if you are not around to record the events yourself, you can always ask Jade Noise to use the "Auto-Threshold" event during data capture to mark any decibel values over a user-definable level.
The use of event labels is further enhanced by assigning priority codes to the event labels. These prioritize the event labels so that certain noise events are more visible than others - influencing the statistics and the chart display.
Large Size Numeric Display
During data capture, in addition to viewing the data in chart form, you can also view the current level in a large size numeric display. This is ideal for those who prefer a large meter-like display, and is also of use in classroom and other demonstration situations.
Jade Noise allows you to set up measurement profiles to specify when data capture should occur and for how long. For example, you can set up a profile to capture data at certain times during the day - particularly useful for unattended surveys or for intermittent sampling sessions.
Jade Noise stores information about meters, calibrators, profiles and events in special library files. This means, for example, that Jade Noise does not restrict you to using just one sound level meter. Instead, Jade Noise stores the details of all your meters so you can choose one from the library before a data capture session.
Jade Noise does not require any special hardware other than a standard PC sound card and a special data cable to connect the sound level meter to the sound card.
Jade Noise Measurement Files
All the information about a data capture session, including the actual data, meter calibration details (if any), notes both before and after data capture, noise events, and so on, are stored in a file for future use.
You then use Jade Noise's chart viewing and note editing facilities to view the data and the associated notes in order to analyze the data and prepare reports.
When you are ready to view the results, simply open a measurement and select one or more time periods to view the data in chart form. Alternatively, view your observations before or after data capture, or open the system generated note to view details of the measurement session.
The charts used by Jade Noise's viewing facility are similar to those displayed during data capture, but with one important extra feature: the ability to zoom in and out of the chart and view the data at different levels of detail. For example, you can see all the data in a top level chart or zoom in on a small portion of the chart to see the data in detail.
A further enhancement over Jade Noise's charts is that the noise events are shown individually at the foot of the chart. You can therefore match the events to the corresponding data.
Of course, just viewing the data is not always enough. Jade Noise also allows you to print charts on your printer using a selection of print options. For example, you can print just the visible chart or the whole measurement period as a series of charts.
For total flexibility you can also copy the chart image to the Windows clipboard or even create a "snapshot" file of the chart in Windows Metafile Format for inclusion in a word processed report. And the data itself can be exported for inclusion in a spreadsheet.
Picture: Jade Noise 2 printed chart
Jade Noise allows you to open documentary notes in the measurement file for editing and printing using the built-in word processor facility, for example to produce a written report. Jade Noise also automatically generates notes that record the details of data capture, including the sound level meter and calibrator used. You can the export and clipboard facilities to place text in alternative word processors.
Jade Noise 2 is provided with full documentation and on-line help. The Getting Started guide contains a tutorial that teaches you how to use Jade Noise 2. This is supplemented by an in-depth User Guide and an Advanced Topics guide. All the manuals are provided in Adobe Acrobat format so that they are always to hand.
Jade Noise Community Version
Jade Noise 2 is also available as a free version, Jade Noise Community, that is intended for simple noise monitoring applications capturing data over a short period of time. Jade Noise Community has certain limitations compared to Jade Noise Professional. See here for more details.
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Ptolemy Services endeavors to ensure that the information in this document is correct, but does not accept any liability for omissions or errors. The development of products is continuous and product specifications are subject to change without notice. Any particular version of the product may contain only part of the facilities described in this document and may contain facilities not described here.