Room Curves Anyone?

mccarty350

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I just wanted to share with the group a ton of my targets. A lot of them I took and created based off of Harman/Toole documentation.

If others have great targets please post them up, I'd love to try some others!

Let me know your thoughts. My favorites of the 'standardized curves' are the linear phase Harman -4db curve and depending on the sharpness of the tweeter or drivers the Harman -6db curve. The -4 db and -6db indicate how negative in DB the 20khz mark is i.e. in the bass range it's around 0db and at 20khz it's -4 or -6db respectively. Note, all Harman Curves are not flat but are derived from fletcher munson curve concepts.

I couldn't attach the raw target files so I had to zip them. I also have minimum phase versions of all of these curves if anyone wants those but honestly it's just a checkbox in your target file, it's easy to change.
 

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  • Target.zip
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moedra

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What I use is simple enough. Set one point at 10Hz and give it +2.5 dB. Set a second point at 25,000Hz, and give this one -2.5 dB. Set the phase to mixed % and then give both minphase bass and minphase top a value of 50%. That's it. Simple, balanced, and perfect, at least for me.
 

juicehifi

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That kind of target is right in my alley. People have different tastes, though.
 

Ofer

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Set the phase to mixed % and then give both minphase bass and minphase top a value of 50%. That's it. Simple, balanced, and perfect, at least for me.
Can you explain this part please? maybe add pictures as how you do it.

Thanks.
 

whoareyou

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Can you explain this part please? maybe add pictures as how you do it.

Thanks.
Hey Ofer,
On the target just change selection to Mix Phase Targets and then enter amounts bottom right of input form

1672261109443
 
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ddude003

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At some point this moves from room correction to personal taste tone control... Not a bad thing, just personal taste...
Speaking of which, anyone using something like Tone Projects Kelvin or LiquidSonics Reverberate to sweeten the mix?
 
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whoareyou

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At some point this moves from room correction to personal taste tone control... Not a bad thing, just personal taste...
Speaking of which, anyone using something like Tone Projects Kelvin or LiquidSonics Reverberate to sweeten the mix?
Of course it's partly personal taste, but it's also based on a good deal of scientific research.
 

moedra

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Hey Ofer,
On the target just change selection to Mix Phase Targets and then enter amounts bottom right of input form

View attachment 58120
Yes, this is it. Just change the percentages in the lower right. 50% and 50% sounds good to me, but I'm sure that on different systems your mileage may vary a little. Experiment with it.
 

moedra

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At some point this moves from room correction to personal taste tone control... Not a bad thing, just personal taste...
Speaking of which, anyone using something like Tone Projects Kelvin or LiquidSonics Reverberate to sweeten the mix?
In my case the target is based on the required application. I use it for audio mastering, so my target needs to be linear and balanced so that anything I do and release to clients is "calibrated" to be commercially compliant. I have been working with it this way for so long now that it has become my preferred target for casual listening as well. I'm so used to it that I can instantly tell (hear) when something sounds off in the source material. No other target shape or slope sounds calibrated to me. I can't turn that part of my brain off. It's the engineer in me.
 
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Ofer

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Marantz original 5E CD
Hey Ofer,
On the target just change selection to Mix Phase Targets and then enter amounts bottom right of input form

View attachment 58120
Thanks. This sounds better then exactly the same curve only minphase! Can't place my fingure on it but it improves the overall sound. Not sure it would be good for video.
 

whoareyou

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Revel m105
Thanks. This sounds better then exactly the same curve only minphase! Can't place my fingure on it but it improves the overall sound. Not sure it would be good for video.
On critical listening (and instant switching with something like HangLoose Convolver), I prefer the mixed phase, since it seems to pull the bass in to center a bit more, but I'm happy with either type of curve.

Interesting you mention video, for which I have two methods of playback. If music video, I'll always use Jriver and playback via my DAC and AL filters. Always sounds superior to any result I get if I try and playback via my receiver. For whatever reason, Audyssey and music just don't mix well for me.

Plain old movies are a different story, I prefer the simplicity (because of the various audio formats i.e especially Atmos it supports) of just using my receiver with Audyssey. For movies it sounds good IMHO, and not worth trying to roll my own solutions.
 
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Ofer

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miniDSP 4x10hd
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Emotiva XPR200 midrange amp
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Crest audio 2001A bass amp
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Rotel RA930ax twitter amp
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Sony Bravia android TV
DAC
miniDSP 4*10HD
Front Speakers
Andromeda MkII
Screen
Sony bravia 65XF9005
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Deezer HiFi
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Marantz original 5E CD
I don't have a receiver. Only the 2.1 setup with AL and HLC. For videos I use the minimal delay filters with only one loaded on HLC. Works great.
 
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moedra

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On critical listening (and instant switching with something like HangLoose Convolver), I prefer the mixed phase, since it seems to pull the bass in to center a bit more, but I'm happy with either type of curve.

Interesting you mention video, for which I have two methods of playback. If music video, I'll always use Jriver and playback via my DAC and AL filters. Always sounds superior to any result I get if I try and playback via my receiver. For whatever reason, Audyssey and music just don't mix well for me.

Plain old movies are a different story, I prefer the simplicity (because of the various audio formats i.e especially Atmos it supports) of just using my receiver with Audyssey. For movies it sounds good IMHO, and not worth trying to roll my own solutions.
I've done a lot of experimenting and cross-referencing with HLConvolver as well, which is how I came to settle on that 50/50 blend. It's strange but for some reason that combo in audiolense has always sounded the best to me. It's been the most enjoyable for me in terms of what audiolense has to offer.
 
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