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    NHT Xd system and other digital active speaker systems

    A few updates to my post: * About the competing tweeter crossover numbers, I missed this bit in Atkinson's followup in Stereophile where he got some new filter files from NHT with crossover changes: "[...] crossover point between tweeter and midwoofer moved up a hair (to 2.4kHz from 2.3kHz) to...
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    RPi + CamillaDSP Tutorial

    The idea was to use this to select a room correction target. Instead of creating a bunch of targets and trying to select among them, I created one flat-in-room set of correction filters and then adjusted the tilt until I liked the tonal balance. It was much easier to get a feel for what more...
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    RPi + CamillaDSP Tutorial

    I wanted to add a "tilt" control to the Shortcuts page of the GUI, and it was really easy. First, add the Tilt filter to your config filters: Bass: description: null parameters: freq: 85 gain: 0 q: 0.9 type: Lowshelf type: Biquad Tilt: description...
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    Deep mid-bass cancellation Null

    Your in-room bass response actually looks pretty good to me. Room correction shouldn't try to fix deep nulls (dip limiting).
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    NHT Xd system and other digital active speaker systems

    REW can do that if you have a measurement mic.
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    Contact spray in red can?

    There's also Caig Deoxit: https://caig.com/
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    RPi + CamillaDSP Tutorial

    Thanks! Good to know for future reference. So it seems if the chunksize and target_level are too low it tries to choose a sample rate to keep up (which would be 48000->16000 for capture_rate=48000), and if the sample rate it tries to switch to is not available it fails. Is there a rule of...
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    RPi + CamillaDSP Tutorial

    I'm having trouble getting the ultralitemk5_streamer_44c_44p.yml config working at all on Bookworm (loading the file and then applying to the DSP in the web interface). This is a previous Camilla setup following mdsimon's instructions for an M4. Log message is 2024-08-01 18:48:28.614519...
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    The Decware Pills make things sound more analogue! How do they work?

    This is DEC ware: I don't know who these other frauds are.
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    NHT Xd system and other digital active speaker systems

    I finally assembled everything needed to replace the NHT electronics (XDA unit) and the broken XDW subwoofer: * The HiFiBerry DAC8x 8-channel DAC hat for the Raspberry Pi 5 for the 6 channels needed if the digital crossover (subs, mids and tweeters). * 2 Fosi V3 aps (just the single-ended...
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    RPi + CamillaDSP Tutorial

    It would certainly look much more "high end", and having built in master volume and remote control is really convenient. However I already put together a display, remote, and the software to control CamillaDSP digital volume for my previous RPi 4 + Motu 4 system. Also, I'm using Acourate for...
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    RPi + CamillaDSP Tutorial

    In the end I decided to go with the tried and true: Motu Ultralite Mk5 it is.
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    RPi + CamillaDSP Tutorial

    I was also looking at the MiniDSP Flex Eight, if that can be used as an external 8 channel DAC. Unbalanced only, though. Are there any measurements of the Focusrite? It would be convenient to have mic inputs as it would make it much easier to do 3-way measurements with Acourate than with my...
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    RPi + CamillaDSP Tutorial

    Apos just says it's discontinued, and I don't see any refurbished units. Were you looking at the Topping D70 Octo stereo DAC? I'm aware of the Okto DAC, but want to keep costs down. There are some good reports about using the Evo 16 with Linux at...
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    RPi + CamillaDSP Tutorial

    I've had the Hifiberry Dac8x for a few weeks now and have been using it for a 3-way active system. I'm also using Hifiberry's Pi5 case. In short, I do not like the mini-TRS connectors. I had the unpleasant experience of turning on the subwoofer only to hear a terrifyingly loud hum come out of...
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    Couldn't we technically standardize "perceived" frequency response of a loudspeaker system?

    I've wondered this, too: given full spinorama data for a speaker and the impulse response at the listening postiion, is it possible to derive a correction filter that gives a "canonically" neutral response. DRC-FIR attempts something like this using just a single listening position impulse...
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    Prices... am I out of touch?

    The Apple headphone dongle and one of the Truthear x Crinacle Zero IEMs will give you SOTA sound for well under $100 IMO. If you are able to afford an iPhone...
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    Two possible new puppies in Aiyimas future..

    Anyone can see that #2 is the better looking design. They are probably just doing this for "engagement". Does the taller design really not allow for a larger screen?
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    Are domed rooms bad?

    Perhaps you can find a location for the speakers and listening chair that doesn't have much directly reflected sound reaching your ears from the dome. Remember the recommended listening distance for the KH80s is 0.75 … 2.0 m (2'6" … 6').
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    Are modern speakers all just overpriced regurgitations?

    Another terrible "nostalgia" design is this McIntosh speaker: https://www.stereophile.com/content/mcintosh-ml1-mkii-loudspeaker-measurements On the other hand, Wharfdale seems to have done a good job -- based on Erin's measurements -- with their Linton 85th Anniversary speakers...
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