15
ROOM ANALYZER II PRO Measurement software for room analysis and frequency response Quick Guide © 2013 XTZ Sound, www.xtzsound.com
ROOM ANALYZER II PRO
Measurement software for room analysis and frequency response
Quick Guide
© 2013 XTZ Sound, www.xtzsound.com
Table of Contents
Page:
Introduction 3
About XTZ 4
Unpacking 5
Connectivity guide 6
General 8
Room Analyzer 11
RTA 13
Full Range 14
Service & support 15
Introduction
Introduction The Room Analyzer II Pro offers manypossibilities in guiding you to calibrate andanalyze your hifi or home theater system.
It takes patience to get a hifi system or home theater system carefully optimized. This quickguide provides the basic tools to measure andanalyze your systems performance. Please read the full manual for further andmore detailed information.
Please feel free to contact our “free of charge”support if you lack experience of acousticalmeasurements or have any questions.
WARNING!The microphone supplied with thisproduct is designed solely for usetogether with the supplied sound card.
Be careful with high sound levels.Always begin your measurements withyour volume settings low and increasethem as you proceed with yourmeasurements to protect yourequipment and hearing.
3
About XTZ
Philosophy Our reference and starting point is to reproduce anatural sound, but we still pay attention to the factthat sound is a personal matter of taste.
With the Room Analyzer II Pro measurement systemwe can help you reach this goal.
XTZ Goals To offer the best price/performance/quality ratio on the market
Our concept: To produce the perfect compromise Cost-effective lmanufacturing at a large
scale. The quality of our products is more
important than marketing. Reduce the number of middle men
Contact Website: www.xtzsound.com Email: [email protected]
4
Unpacking
Unpacking Check that the items below are included in thepackage:
Included items 1 Microphone1 Microphone stand1 Connection aluminum box (sound card)1 USB cable fixed to the sound card, 3 m1 XLR to XLR for the microphone, 4 m1 XLR to RCA audio cable, 5 m1 Y-split cable
Installation Download the software from our website and followthe instructions. Enter the serialnumber located onthe outside of the paperbox.
http://www.xtzsound.com
5
Connectivity guide
.1 Connect the USB-chord to your computer USB-port.
.2 Connect the Room Analyzer II PRO microphone tothe XLR connector labeled MIC the sound card.
.3 Connect the supplied XLR-RCA-cable from AUDIOOUTPUT to a line input on youramplifier/receiver/subwoofer.
.4 Start your computer, choose “XTZ Audio 2 Pro” asyour sound card and launch the software.
ROOM ANALYZER II PRO
If the microphone is to be connected to stereo system thenyou should use the Y-splitter to feed a signal to bothchannels. This should be connected to any input that is freeto use such as a AUX/TV input.
When making final adjustments, make sure signal is appliedto all speakers and subwoofers in the system you wish tocalibrate. Making separate adjustments to each channel willnot accomplish a well-balanced end result.
To avoid equipment to damage the amplifier / subwoofer should be turned off during connection!
Y-splitter to distribute the signal to both channels.
Placing themicrophone
High resolution room analysis - Room AnalyzerWhile doing room analysis the microphone should be placedin about listening position at ear height (70 cm – 110 cmfrom the floor).
Frequency response measurement - RTA/Full RangeWhile doing full range measurements the microphoneshould be pointed towards the speaker, preferably at thesame height as the tweeter (the microphone is directionallysensitive above 5 kHz).
6
Background noise Important!External noise from trucks, train, traffic etc can easilydisturb the measurement process. If the measurement result looks strange in any way youshould do the same procedure again once or maybe twice. Ifyou get the same result again you can be sure that it iscorrect.
Finally Please remember that “good” sound is a matter of taste, soyou have to experiment to obtain your personal goal. Wewish you best of luck!
7
General
Note In the following section the functions marked on thescreen shot below are explained. Every function isrepresented by a number in the picture below and isexplained thoroughly on the following pages.
Working area .5 Menus, toolbar, andtonegenerator.
MenusFileNew – New file.Open - Load previously saved measurements.Save / Save as… - Save measurements.Import curve - Import measurement values from atxt-file. Export curve - Export measurement values to a .txt-file.Export Screen Dump – Export measurement inpicture format (.bmp) Print - Print Room Analyzer measurement andTime spectrum analysis in black and white.
ViewToolbar - Shortcuts to Save, Print and quick buttonsfor exporting files to DSP-programming.Statusbar - Display the pointer position inFrequency and Magnitude (level)Color Theme - Choose between a dark or brighttheme of the program.
8
SetupAdvanced mode - More options/settings for somefunction: Stimulus EQ, Smoothing possibility,Load/Save (curves), Change of scale (RTA window),Export Room Analyzer & RTA.
HelpAbout XTZ… - Software version.
Toolbar New, Open, Print.
TonegeratorThe tone generator is started by pushing the greenfg-button.
Right-clicking the fg-button displays a menuallowing the user to choose between 10Hz-20kHz1/3 octave sine wave tones or white/pink noise.
The signal level can be adjusted between-100-0dBFS using the arrows or by typing in a value
.6 Output level & Measure.
Output levelThe output signal level can be adjusted using theslide control to the right. It is also possible to adjustthe signal level at the amplifier end.
The output signal level should be green. If it's redit's to high and if it's blue it's to low. In both cases itwill not be able to measure.
MeasureStart the measurement by clicking the Measurebutton.
.7 SPL-meter, Averaging,Weighting
SPL-meterThe SPL-meter (Sound Pressure Level meter) showspresent sound pressure at the microphone position.The meter displays five different top and averagelevels as follows (top to bottom):
LCpk hold shows the highest SPL since start/reset.
LCpeak shows continuous peak levels includingshort bursts.
Which values currently displayed on the bottomthree indicators can be adjusted using the menusunder the meter bar.
LAF hold shows the highest average levelmeasured with the current settings. The lettercombination LAF will change according to yoursettings.
9
LAF shows the current average according to thecurrent settings. The letter combination LAF willchange according to your settings.
LAeq shows current SPL according to the selectedfrequency curve. The letter combination will changeaccording to your settings.
Green meter line shows LCpeak level
Yellow meter line shows LAF/LASpeakaccording to the settings made above.
Timer shows the run time of the meter since startor last Reset.
Reset, resets all averages.
Pause, freezes all meter values.
AveragingThe top menu allows for switching between Fast orSlow average. (125ms or 1s). This is shown as an Ffor Fast or and S for Slow on the level indicators(LAF or LAS).
WeightingThe second menu allows for switching between theweighted frequency curves:
A-weighting: Mimics the ears frequency (LAF) response at low SPL and is the option that isnormally used.
C-weighting: Mimics the ears frequency(LCF) response at high SPL.
Z-weighting: A straight frequency response (LZF) curve between 10Hz-20kHz.
.8 Overlay-function.Provides an option to save and view measuredcharts on the screen. Up to 4 charts can be storedand displayed simultaneously or individually. Thisis very powerful when comparing different settingsand systematically working ones way towards theoptimum settings. The charts are displayed or hidden by clicking on”Show”.
10
Room Analyzer
Use of Room Analyzer 1. Room Analyzer.Shows the frequency response (Blue curve), roommodes (Green curve) and calculated result curve(White curve)
2. Spectogram.Presents an analysis of the decay time in the room.The time spectrum analysis shows a color spectrumof frequency, level and time.
Note: It is possible to switch the main window displaybetween frequency response and spectrogram by double-click on either of them.
3. Room mode.In this window all found room modes are displayedtogether with the recommended compensationparameters calculated for use with DSP products orsimilar products using Parametric EQ.
4. Result and smoothing-menus.
ResultSelect the curve to be displayed by checking orunchecking the relevant boxes.
Smoothing menusSmoothing is a way of evening out the result chart.This can be done using different resolutions. This isan act of balance depending on the equipment used,but also your individual choice. Resolutions available are 2 ppo, 3 ppo and 6 ppo(points per octave).
11
5. Stimulus EQ.Room Analyzer provides you with recommendedparameters for use in a Parametric Equalizer. Thesevalues can be moved to the Stimulus EQ window bypressing the Copy Room Modes, and a newmeasurement will be completed that emulates theuse of a PEQ.
6. Time adjustment spectogram(advanced function).
The frequency response in Room Analyzer ismeasured at ”time zero”, marked in thespectrogram with a yellow line. The yellow timeline can be moved sideways by clicking anddragging the line with the left mouse button oradjusting with arrows up and down in the menu.The frequency response at the time where the line(0-250 ms) is shown in red.
Measuring 1. Measurement window for 1-position measuring.
With the ”Average 3 positions” unchecked a oneposition measurement is performed.
2. Measurement window for 3-position measuring.
”Average 3 positions” gives you an average resultcalculated and measured at three positions in theroom. Follow the guide where to place themicrophone.
12
RTA
Use of RTA (Real Time Analyzer)
1. RTA window.Measures frequency response (in real time) with aresolution of 1/3 – octave. Below is the numericalvalues presented in real time, also in 1/3 – octave.
2. Scale.Set scale top and scale range values.
3. Output level, listen, paused &measure.
Output levelThe output signal level can be adjusted using theslide control to the right. It is also possible to adjustthe signal level at the amplifier end.
The output signal level should be green. If it's redit's to high and if it's blue it's to low. In both cases itwill not be able to measure.
ListenListen to the measurement environment. Canbe used for measuring the background noise.
PausedPause the measurement.
MeasureStart the measurement by clicking the Measurebutton.
13
Full Range
Use of Full Range 1. Frequency response & RT60.Shows the frequency response from themeasurement and the reverberation time (RT60).
2. Waterfall.Below is the waterfall diagram displayed.
3. Show-menu.In the show menu it is possible to change scalerange for the frequency response, change displayalternatives (anechoic, ambient and raw) and add orremove RT60. Here is also the viewing angle for thewaterfall diagram set.
4. Alingment.The Alignment function is a tool to adjust the timedelay between your systems channels/subwoofer.Better phase accuracy at the listening position isaccomplished by delaying individual channelsseparately and important to acheive the optimumsoundstage.
14
Service & support
Where to send theproduct for warranty
service?
For service we refer to our retailers.
If you have questions about servicing, please contact our support:
Email: [email protected]: www.xtzsound.com
Always pack the product/part very carefully as transportation damages are common. If the packaging is insufficient, the courier will not pay for the damages.
Always include a copy of you receipt and a description of the problem.
Support Contact our free of charge support line if you havequestions or need advice about installing asubwoofer, speaker or software, or if you run intoany problems during installation.
Measurement results can be hard to interpret. Sendus your graphs and we will help you analyze them!
Contact us using email [email protected] andinclude your phone number if you wish us to callyou.
15
