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  1. Thanks for all these feedbacks ! it is really encouraging. I am working on something new and will come back soon with more infos.
  2. @amir57bs FYI I am providing room correction & crosstalk reduction filters with super easy implementation in Roon My website : https://www.homeaudiofidelity.com/ Related discussion on Roon forum : https://community.roonlabs.com/t/roon-home-audio-fidelity-room-correction-convolution-filter-creation/29389
  3. Hello, FYI the service has been reviewed by C. Punter from Hifi -advice http://www.hifi-advice.com/blog/review/digital-reviews/audio-software-reviews/home-audio-fidelity-loudspeakers-room-digital-correction-services/ Conclusion is "So, clearly wholeheartedly recommended!" ?
  4. Hello, It is important to find small microphones so you can capture most of the influence of your ear shape. If you live in the US you can go for a model like this one https://www.soundprofessionals.com/cgi-bin/gold/item/SP-TFB-2 In Europe you can check this website http://www.soundman.de/fr/products/ (OKM I or II) Best, Thierry
  5. Hi, I usually explain the procedure by mail to the ones interested in using HQP instead of Roon. You can get in touch with me as some pre-processing is needed to convert the stereo files to mono ones. Best, Thierry
  6. Hi, You have to set the level using your standard listening configuration (sub active) and then you remove all filters (Devialet & Roon) and perform sweep measurements for each driver independently (either by muting if possible with the Devialet or by unplugging one speaker cable) Cheers Thierry
  7. Hi John, You need to set the overall volume (either with pink noise or just using your standard listening level) and then make only one sweep measurement per loudspeaker (main left w/o sub, main right w/o sub, sub) putting the mic at the listening position. Cheers, Thierry
  8. Hello, @R1200CL - If you want to go through Roon for the measurements you must use REW as I have not included this option in my tool - I recommend keeping your usual Roon settings if you go through it for the measurements : if you hesitate b/w two different settings we can check if they have an impact or not on the acoustic measurement - There are other measurement mics than UMIK and they usually come with only one calibration file, this is why I mention the 2 options for mic orientation : if you have UMIK it is easier to manage measurements by pointing the mic to the ceiling - You can still use pink noise to set the volume, but I realized that it brought some confusion for REW newbies : using the normal listening level is a good & less complicated option @Celts88 I can guide you if you'd like to fine tune your sub integration : you just need to perform acoustic measurements of each element separately at listening position and send me the files. Cheers, Thierry
  9. Hello John For the sub integration you have different alternatives : you can either make an arbritary choice for the crossover frequency (like 80 hz) or you can perform room transfer measurements of each speaker alone (sub, main left, main right) to better optimize the crossover strategy (including potential overlapping as having multiple sources in the bass region can be beneficial) Once you have a crossover defined you need to perform the different full range room measurements. Cheers Thierry
  10. Hi Even if my filters are more focused on stereo reproduction they can be used in a 5.2 system using the flexibility offered by the Roon convolution dsp. And yes I generate filters up to 384khz as a basis. Don't hesitate to contact me using this e-mail [email protected] to exchange more in details about your configuration. Thierry
  11. Hi, I am pleased to annonce some new good things ! As acoustic crosstalk reduction is not always fully known or understood we have created a video explaining the concept & demonstrating what you can achieve as 3D soundstage with proper correction: https://youtu.be/lfQPnmy2pxI (please us headphones) We now propose different options for crosstalk reduction as the beta testing phase has been really positive. For the ones seeking tailor made xtalk reduction we support the measurement of individual head related transfer functions. Last but not least, we propose a simple tool for room transfer measurements (inc. remote control with tablet or phone) Hope this will remove any potential mental roadblock of using a more advanced tool like REW. Website has been updated accordingly http://www.homeaudiofidelity.com Best, Thierry
  12. Hello Peter, You can certainly go for an extra DAC to manage your subs : with that option you can handle everything within Roon with one set of filters per DAC. Regarding my service you have 2 options: you can define by yourself the crossover + time alignment filters and perform full range measurements with that configuration. I will use those measurements for the correction and merge the corresponding filters with the crossovers ones so that you get only one filters set per DAC. The other option is to let me handling as well the crossover & time alignment definition. The rest of the process will be the same. Regarding your last question I generate filters in wav format with double precision. Hope this is clear enough, Thierry
  13. Hi and thanks for your interest ! Here are my answers: Having a premium mic calibration is not mandatory as I am seeking minimal correction to protect the transparency & natural character of loudspeakers: this is why having a perfect absolute values for the measurements is not a must. Convolution is a pure mathematical operation and it will give the same results with all players, what can make the difference is what happens before & after this operation. The most common way of performing convolution is using FFT so there should not be CPU usage difference b/w the different options. If you want to check the CPU usage I can provide you test filters from other customer. Having a dipole is usually an advantage for crosstalk reduction, otherwise the correction is mostly dependent on the room environment: it is logical to get bigger improvements with difficult cases. And yes you get both versions of the filters for the free trial. Best, Thierry
  14. Yes John you need to make measurements as I generate the appropriate filters for the free trial.
  15. Hello John It is pretty easy to make good enough measurements and it is also easy to check them. Before building a correction I always make a quality check. Regarding your specific questions 1. It is REW that will generate the test signal for impulse response acquisition (a sweep signal actually) 2. For a 2.1 system you have to measure left channel + sub and then right channel + sub for each location
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