Metric-halo SpectraFoo Version 1.5 Manuel d'utilisateur

™Operations GuideCopyright © 1998, Metric Halo Laboratories, Inc. All rights reserved.

With in the Oscilloscope details window the Sensitivity slider controls the magnification of the oscilloscope trace,allowing you to see the wave shape

Although the Spectragraph excels at traditional applications such as analyzing the distortion characteristics of audioequipment, its true strength lie

power of this instrument lies in its synchronization with the live audio signal. After spending some time “calibratingyour eyes to your ears” by watch

Peak and RMS Power HistoryThis instrument allows you to see the history of the information displayed by the Peak and RMS meters. The lightgrey “tick”

Lissajous Phase Scope (vector mode) Lissajous Phase Scope (X-Y mode) The Lissajous Phase Scope is equivalent to an oscilloscope running in

In order to help you intuitively identify the frequencies, the phase points are also colored according to their fre-quency. You can get a color – freq

Quick Menu ReferenceEdit Menu This menu contains the standard editing commands. Currently Select All and Show Clipboard are notimplemented. The Allo

Analyzer Menu Although you can switch the resolution of the analyzer to less than 4096 points, SpectraFoo is sofast that we can’t see why you would w

The Use Internal Clock command allows you to choose between an internal and external clock source for the cur-rently selected input hardware. If the h

Groups Menu The groups menu allows you to control and select from the library of instrument enable groups.Instrument enable groups allow you to take a

Congratulations! You are now the owner of the most powerful audio analysis and metering system on the planet. SpectraFoo is capable of monitoring up t

The Stack Windows command re-arranges all of the windows in the instrument layer by stacking them diagonallyfrom the upper left hand corner of the mai

Controlling Audio and Instruments in SpectraFooWhen you start SpectraFoo the Analyzer Control & Routing and the Master Controls windows will appea

will create a consolidated two channel metering view. To remove an instance of an instrument click on its removebutton in the Master Controls window.

Although it seems a bit complicated in practice it is very flexible and quite easy to use. Analyzer ChannelsIn SpectraFoo there is a difference betwee

stereo mix and the other two channels to matrix switch on the fly between the individual channels of the mix. Youcould check out the kick drum and th

Changing the analysis depthYou can change the number of samples that SpectraFoo uses in its FFT analysis. Increasing the number of pointsincreases the

After you have named all of the channels that you are using, click the lock icon again. This will close the channelnames and rename all of the channel

Once you have assigned an input channel to an analyzer channel the input channel’s name is propagated throughoutSpectraFoo. So, as you see above, the

Capture and StorageSpectraFoo provides the ability to record selections of audio into the computer’s RAM and perform incrediblydetailed non-real–time

Trigger LevelDetrigger LevelPre-Trigger TimePost-Trigger Time Post-Detrigger TimeTotal Length of RecordingDetriggers HereRetriggers HereCapture Starts

tem, you have to wait for the analyzer to make many captures, transform them and average them before you see theresults. With traditional transformati

All captures are retained in RAM to assure the highest processing speed and complete random–accessibility. A listof the captures that are currently av

An Overview of the OverviewClick on this lock to activate the text field that al-lows you to name the capture. Click on these disclosure arrows to sho

Analyzing Musical Structure with the Spectral History RibbonThis is the spectral display of a highly dynamic and melismatic vocal passage. The music t

Creating playback loops in an Overview WindowIn addition to analyzing captured signals, you can replay the captured signal throughout one of the syste

Click this checkbox to turn on Data Slicing.When Data Slicing is enabled, the realtime instruments display the data which lies underneath the current

The Transfer FunctionFor live sound, equipment testing, or any application where you need to analyze the characteristics of acoustical andelectrical a

Transfer Function of a Room Response with a time delayTime Aligning the measurement with the Delay Finder WindowsThe delay finder uses the Fourier dec

Transfer Function after the measurement has been time-alignedThe Transfer Function’s New Look: v1.5The parameter controls for the Transfer Function ha

The Updated Transfer Function WindowSpectraFooTDM Operation Guide 37

EpilogueWelcome to the end of the tour. By this point, you should have a good understanding of the basic features and capa-bilities of SpectraFoo. Mor

Quick Installation GuideInstalling your Metric Halo software product is a simple 7 step process.1. Insert the installation media (CD or diskette) into

APPENDIX I - LICENSE AGREEMENTMETRIC HALO LABORATORIES, INC. SOFTWARE LICENSE AGREEMENT AND WARRANTYIMPORTANT - PLEASE READ THIS SOFTWARE LICENSE AGRE

5. EXCLUSIONS OF LIABILITYIN NO EVENT WILL MHLABS BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL ORCONSEQUENTIAL DAMAGES RESULTING FROM ANY D

Each time you start the software (until you have authorized it) the following authorization dialog willappear:You can use your software immediately (e

SpectraFoo Instrument SummaryIntroductionSpectraFoo provides you with a wide variety of audio monitoring and analysis instruments.You may access any c

you can run 4 or 5 instruments with no noticeable degradation in the graphics performance, and the graphics perfor-mance is usually still acceptable e

You may move instruments within the rack by clicking on the instrument you want to move and dragging it to a newlocation. As you drag the instrument a

VU meter is actually an adjustable ballistic average indicator that is represented by the grey triangular carets.Detailed meter readings (1/100 dB acc