Data AcQuisition And Real-Time AnalysisScope - Spectrum - Spectrogram - Signal Generator
Software for Windows
Science with your Sound Card!
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Sound Card Special Effects and MIDI
Sound cards typically offer options such as reverberation ("Environment") for music listening, which can greatly enhance DaqMusiq that you produce with the default Microsoft GS Wavetable synthesizer. This synth has a "dry" (low reverberation) sound that really comes alive with a modest amount of reverb. Unfortunately, there is no standard software interface that allows Daqarta to control this, so you have to do it manually for your particular card.
Important: Adding reverberation, equalization, or other "effects" to the sound card output may seriously compromise measurements or other technical applications that expect a known signal from the Generator output. Remember to disable these effects before using the Generator, or else use a separate (USB, etc) sound card for such applications. (See also the "Special Effects" on Output subtopic under Distorted Input/Output Waveform or Spectrum in the Troubleshooting section.)
Windows XP: If your sound card has its own icon (other than the default speaker icon) in the Windows system tray, you should start by clicking on that. If not, then go to Windows Control Panel and look for the name of your sound card, such as "Realtek HD Sound Effect Manager", or "USB Multi-Channel Audio Device". (The needed controls will probably not be under the generic Windows "Sounds and Audio Devices".) Click on the icon and Look for a tab marked "Effect" or "Sound Effect", which should open a dialog with "Environment" and (usually) "Equalizer" ("EQ") controls.
Vista or Windows 7 or later:, right-click the speaker icon in the system tray, and click on "Playback Devices". In the dialog that opens, double-click the Speakers icon. (If more than one Speakers icon is present, click on the one with the green check mark.) Under the "Speaker Properties" dialog which opens, click on the "Enhancements" tab. (There may also be a "Dolby" tab with other effects you may want to experiment with.)
If there are separate Equalizer controls, begin by setting them all to 0 (centered vertical sliders), or hit the "Reset EQ Setting" if present.
Under Environment there should be a drop-down menu that allows you to select from among such settings as Generic, Bathroom, Living Room, Auditorium, Concert Hall, Arena, etc. The "best" setting depends not only on your personal tastes, but also on the system you are running on... Auditorium on one system may sound more like Arena on another. In addition, you may find that (just as for other music, whether live or recorded) different DaqMusiq performances sound better in different environments.
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