Large volume difference with DIRAC enabled.

Beantwortet
Ray Proudfoot
I’ve bought a DIRAC licence for my Icon and calibrated it for a tightly controlled listening area with 9 measurements. During the calibration process the output from L and R was sufficiently loud so I continued with 9 measurements. All measurements were okay with the software. The problem I now have is the volume difference between DIRAC on and off. It’s significantly quieter with DIRAC on. Why? I have a ARCAM AVR21 with a DIRAC licence and listening to music via that there’s no difference in volume with it on or off. Is this something you’re aware of? Toggling DIRAC to hear the differences is made very difficult because of this volume difference. I have OUTPUT LEVEL FIXED enabled.
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  • Offizieller Kommentar
    Ray Proudfoot

    From an Internet search it appears this volume reduction is a feature of DIRAC LIVE. Pity. My Naim XS3 can easily cope with the volume increase but remembering to reduce it before I switch to radio services will have to be learned.

  • Ray Proudfoot

    This topic has been marked as Answered but I’d appreciate a comment from Bluesound staff as to why the volume is so much lower. No mention of this is made in your Dirac video. Why not?

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  • Tony W.
    Product Support Manager

    From an Internet search it appears this volume reduction is a feature of DIRAC LIVE

    What you are hearing, as you deduced, is happening by DIRAC and the filter design you are applying.

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  • Ray Proudfoot

    Tony, what purpose does the response curve file serve? And if this reduced volume is a feature shouldn’t you at least mention it?

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  • Tony W.
    Product Support Manager

    Hi Ray

    This is part of DIRAC. Though DIRAC integration is featured in our product, it is a third party independent software add on.

    The volume reduction is required to account for headroom required based on your filter design and as suggested can be better answered by DIRAC at live.dirac.com.

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  • Ray Proudfoot

    I’ve raised a ticket with them Tony. But I’m curious because my Arcam AVR21 AVR also has Dirac. If I login to YouTube via my AppleTV box which is connected to the AVR21 via HDMI and play CD quality music there is no difference in volume between Dirac on and off.

    Maybe it’s the path it takes. From the Apple it goes to the Arcam then into a Naim amplifier and then to loudspeakers. The Naim acts as a power amplifier as I have a HT Bypass enabled AVR and amplifier.

    Thoughts?

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