24
Calibration notes:
• A common master volume range is -35db to -25dB.
• A signal-to-noise ratio error indicates too low of audio to
measure. Master output may need to increase.
• A clipping error indicates too high of an audio level to
measure. Master output may need to decrease.
• If your subwoofer has gain control, this control may need
to be adjusted to assist with the volume calibration of
that channel.
Select Arrangement
12.
measurements: Tightly Focused, Focused, and
Wide Imaging.
13. Please choose one that matches closest to your
own listening arrangement. A wider listening
arrangement may require more measurement
positions with the microphone
Measure
14. Place the microphone closest to the listening
position shown in arrangement image.
15. Press “Measure selected position.”
16. DIRAC will now send test tones out of the
system’s channels to measure.
Note: While measuring a 7.2.4 system, the test tone will appear to
come from both subwoofers together. This is normal.
17.
automatically go to the next position to be
measured.
18. Relocate the Microphone to match the next
position shown in DIRAC for the next
measurement.
19. Repeat the “Measure selected position’ for each
position in Dirac’s arrangement Image.
Note: Please take the time to SAVE your current project at this
point, as it will allow you to open this measurement and edit
your filter in the future without having to remeasure your
arrangement again.
Dirac Live
®
Setup
1. Complete amp assign to establish the room’s
layout using either the front panel or the browser
setup menu. This will set up the MHT300 to
know which proper channels to enable to deliver
audio to (“Setup: Speakers > Amp Assign” on
page 22)
Note: After completing “Amp Assign”, press “Next”, and finally
press “Start.” This refreshes NET connection to DIRAC
within the MHT300. Please wait at least 30 seconds to
connect to the MHT300 within the Dirac Live app.
2. Make the room as quiet as possible. Background
noise can disrupt the room measurements. Close
lights, etc.).
3. Connect the included measurement microphone
to the MHT300.
4. Create a DIRAC account and install the app from
https://www.dirac.com/live/downloads
Select Device (MHT300)
5. Select recording device (microphone). An icon
with a microphone should appear with a graph.
6.
7. Select “Use from device.”
Volume Calibration
8. Set the Master output to a low setting to avoid
damage to ears or speakers.
9. Set the microphone gain to +0dB.
10. Use the Play Button to test channels individually
to hear if their level is suitable. Slowly raise the
master output level until sound can be heard.
• Repeat this step for each speaker.
11. Once each channel is complete, adjust the Master
output to a normal or slightly loud listening level.
Filter Design
20. Dirac Live will automatically generate a
suggested target curve based on your speakers’
performance and tune their response to meet the
suggested curve. These curves can be adjusted to
your preferences.
21. To manually adjust the generated curve, follow
the Dirac Live User Manual on Filter Design:
Filter Export
22.
now be exported and saved onto the MHT300.
23. Dirac will give the opportunity to name and
•
The Dirac Live process is now complete, and
Dirac may be enabled or disabled with available
Future Filter Edits:
Amp Assignment must be set to the same settings
as when the project was measured with to be able
For example, if a Dirac Live measurement was taken
with system set to 5.1 – if amp assign is changed to
5.0: the project measured with 5.1 will not be able to
open until the MHT300 is set back to 5.1.
For further Support with Dirac go to:
Dirac+Live+Support
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