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TOPIC: OpenDRC-Di with REW

OpenDRC-Di with REW 2 years 2 months ago #32983

  • wayneloeb
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I received my OPENDRC-DI today and have a basic question. I want to send the signal generated by REW from my iMac to the opendoc-DI. can I do this through the USB port? Otherwise how do I get the test sweep though the opendrc-DI?

Thanks
Wayne
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OpenDRC-Di with REW 2 years 2 months ago #32998

  • devteam
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@ Wayne

The USB port is for control only I"m afraid. Maybe your MAC has optical out? Then just use it to feed the TOSLINK input of the OpenDRC.

DevTeam
MiniDSP, building a DIY DSP community one board at a time.
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OpenDRC-Di with REW 2 years 2 months ago #33001

  • alandbush
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The REW measurement sweep can be saved as a WAV file.

See the Saving signals to WAV files section of the REW user manual.
Choose the appropriate options but, most importantly, check the 'Add timing reference signal' checkbox..

To measure this WAV file subsequently, you then follow the normal Making Measurements but, most importantly, ensuring the 'Wait for timing reference' checkbox is checked.
Play the WAV file and the measurement will commence.
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OpenDRC-Di with REW 2 years 2 months ago #33007

  • grosso
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Where will you have the ddrc placed for final listening?
Any correction should be done with the entire chain in place, so maybe you could feed whatever player you use on top of the chain?
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OpenDRC-Di with REW 2 years 2 months ago #33011

  • alandbush
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Agreed, I may have assumed how the Op intended to use the REW measurement sweep.

Personally, I play the WAV file as a normal audio file from my NAS music library.
The MiniDSP unit is placed immediately before the active speakers of my system.
The complete chain can then be considered as being EQd.

To simplify the process of measuring each speaker in my surround system, I used Audacity to create a multi channel WAV file, from the original REW WAV file, for each speaker. The timing reference is assigned to the same speaker.
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OpenDRC-Di with REW 2 years 2 months ago #33012

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Thanks for all the help. I used the optical out from my iMac with an adapter in the headphone jack to the toslink input. Worked fine.

Thanks
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OpenDRC-Di with REW 1 year 11 months ago #34084

  • Fenalaar
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Get a ministreamer. That will give you an SPDIF signal to feed into the MiniDSP.

Johan-Kr
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