JRiver DSP Room Correction Function
- Thread starter Alpinist
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I have a pal with Giya G2's and a 200 devialet who uses Jriver
Bass was awful .. bloated one note..setting 3 simple parametric eq filters in Jriver totally transformed the sound , all below 200hz
I used a Umik1 and REW to find the trouble spots ..did the DSP and then tune by ear .. as any correction should not be flat .. you need to overlay a preference curve
I havent tried their full room correction , but have used Dirac, Acourate etc.. all work real well .. better in bass than at freqs over 300hz or so.
It's free with J river.. so you might as well give it a go.
Bass was awful .. bloated one note..setting 3 simple parametric eq filters in Jriver totally transformed the sound , all below 200hz
I used a Umik1 and REW to find the trouble spots ..did the DSP and then tune by ear .. as any correction should not be flat .. you need to overlay a preference curve
I havent tried their full room correction , but have used Dirac, Acourate etc.. all work real well .. better in bass than at freqs over 300hz or so.
It's free with J river.. so you might as well give it a go.
I have heard G1 with Ypsilon Aelius 200w hybrid monos. Pretty good tone. Joel recommends that as well
This was a room problem rather than an equipment mismatch...
Dunno if we can get Ypsilon here in South Africa or if there is a local agent ..
I havent tried much else other then Devialet on mine , but have heard some other amps on some of my pals giya systems..difficult to extrapolate as all the various rooms were different as was the sound
Most of the 12 local vivid audio owners I know also use devialet in one form or another.. excellent VFM and SQ.. a single box solution..
I spent most of my extra hifi budget on rebuilding my room and room treatments and so on..Im skin't now .. will have to wait till I come back from Ireland in January before I have some more ready cash.
Dunno if we can get Ypsilon here in South Africa or if there is a local agent ..
I havent tried much else other then Devialet on mine , but have heard some other amps on some of my pals giya systems..difficult to extrapolate as all the various rooms were different as was the sound
Most of the 12 local vivid audio owners I know also use devialet in one form or another.. excellent VFM and SQ.. a single box solution..
I spent most of my extra hifi budget on rebuilding my room and room treatments and so on..Im skin't now .. will have to wait till I come back from Ireland in January before I have some more ready cash.
The reason why no body has responded is because Jriver doesn't have a room correction function. There are some basic EQ parameters one could set. However, Jriver was never designed to be a stand alone room correction suite. One would need different software to generate the filters needed and those filters need to be added somehow to Jriver's DSP engine.
I've tried every software DSP method. I've tried generating custom EQ filters generated from REW. But the big advancement comes with using the Jriver convolution engine. One would use third party software to generate filters and install those filters in the Jriver convolver for best possible results.
Thanks DJ, this is exactly what I'm curious about. Could you describe what are the basic EQ parameters in JRiver?
Also, do you have any experience with third-party EQ software that could be added to work in conjunction with the JRiver engine?
Thanks so much!
Ken
The best policy is to use J rivers parametric in the low bass below 300 hz .. minimum phase stuff etc. Just cleaning up the bass is often all thats required
Acourate or bruteFir will work to create filters for J river.. Acourate costs , bruteFIr is free..(afaik)
there are hardware solutions that free you to use whatever playback scheme / ui you want , such as the miniDSP openDRC di and their dirac based DDRC series , DEQX , trinnov , lyngdorf , Dspeaker antimode 2.0
Generally Used after the player and before the dac.. some of them are also dacs and pres's ....
Acourate or bruteFir will work to create filters for J river.. Acourate costs , bruteFIr is free..(afaik)
there are hardware solutions that free you to use whatever playback scheme / ui you want , such as the miniDSP openDRC di and their dirac based DDRC series , DEQX , trinnov , lyngdorf , Dspeaker antimode 2.0
Generally Used after the player and before the dac.. some of them are also dacs and pres's ....
Jriver has a basic EQ. Theres not much to describe. I've used the filters recommended by REW. That's very basic but can offer just okay results. The best solutions will be the filters generated by Audiolense and Acourate, IME. You will need a calibrated mic and DAC/ADC with a mic pre. You can demo either software. Of course, DIRAC can be demoed too but Dirac doesn't really work inside Jriver. It requires its own processor. I think Dirac is good but better results are possible using Acourate or Audiolense, IME. If you get the aforementioned gear, ask some more questions and I'll help out, if I can.
UMIK 1 usb mic is pretty good at $70 .. comes with cal files , tripod , case etc .. no pre required , just plug it in to the pc/lappy and set it as the default recording device
LoL
i recall when you were a TOTAL Dirac guy. Its hard to see you back away from them...but I guess its good to go where the evidence takes you.
Yes but note that there is an unofficial VST-plugin version of DIRAC that does work within JRiver nicely.
That's true. I favor the Jriver convolution engine because it auto corrects for filter latency so there aren't any lip sync issues with TV or movies.
Looking to embed Dirac in Jriver as you've done -- could you point me to this plugin? An admittedly quick web search didn't yield anything useful. Thanks
I don't use it with TV or movies so it is not an issue for me.
It is unofficial and you will have to inquire from DIRAC to pursue it.
Hi Ken,
I would not waste your time messing about with third party EQ software (as I did) and instead download Acourate and undertake full room correction using the jriver convolver having generated your filter in Acourate. It is easy to do and depending on how your room measured, might well be revolutionary for you.
I totally agree. Acourate is a little daunting but Uli is a great dude and will help through any issues. I own both Audiolense, Acourate and Dirac. I haven't used Dirac in a long time. I go back and forth between Acourate and Audiolense.
I wouldn't use a USB mic though. I think it's worth it to get a decent calibrated mic and DAC/ADC. There are many DAC/ADC options which are very inexpensive and pretty high performance. Tascam has good ASIO drivers and many low cost options. You could get a decent calibrated mic for $100. The whole rig could be had for no more than $500. It's important to get a synchronous measurement and that's impossible with a USB mic. If your DAC has a spdif input, you could even use your DAC as the output for the log sweep which is ideal. The Tascam units have spdif out and are fully configurable.
I wouldn't use a USB mic though. I think it's worth it to get a decent calibrated mic and DAC/ADC. There are many DAC/ADC options which are very inexpensive and pretty high performance. Tascam has good ASIO drivers and many low cost options. You could get a decent calibrated mic for $100. The whole rig could be had for no more than $500. It's important to get a synchronous measurement and that's impossible with a USB mic. If your DAC has a spdif input, you could even use your DAC as the output for the log sweep which is ideal. The Tascam units have spdif out and are fully configurable.
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