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The Bass EQ for Movies Thread


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#21 wth718

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Posted 09 October 2014 - 04:35 PM

The config files above are only for nanoAVR HD. I correct every channel, and just applying a correction to the sub out will not net the same results.

JSS

Thanks for the info.

 

Fatshaft. Can you reset the mini to default and then try to re-apply your saved config?


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#22 Kvalsvoll

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Posted 09 October 2014 - 06:07 PM

Well, I was going to ask a question about whether this method could be applied if you had a minidsp for only the subs and not the LCR or surrounds. Given Fatshaft's experience, I think I'll hold off until I hear more.

The configuration files maxmercy posted are for the nanoavr only. 

 

Other minidsp products can be used for eq, and you can do the eq on the subwoofer system alone.

To get good results with eq on the sub system you should run bass management for all channels.

No, it will not be exactly like individual eq on all channels, but with proper bass management it will be very close for many soundtracks.

 

The bass eq entries I made have descriptions for minidsp filters, mostly low-shelve.

Those filter coefficients are compatible for all minidsp products.

 

I have testet a couple of movies running Bass EQ on the subwoofer minidsp, it works very well.


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#23 Fatshaft

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Posted 09 October 2014 - 08:00 PM

Thanks for the info.

 

Fatshaft. Can you reset the mini to default and then try to re-apply your saved config?

 

 

No I cannot...I cannot launch it and do anything at all.

Pressing OK does nothing!

It's frozen on that screen.

It won't go to the setup page.

This is really frustrating...I've had to disconnect my MiniDSP for now cause of no output and I need my daily bass.

 

I'm now searching to try to reset it somehow...there's got to be a way.



#24 maxmercy

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Posted 09 October 2014 - 10:32 PM

Reload firmware and re flash to factory defaults.

JSS

#25 Fatshaft

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Posted 09 October 2014 - 10:45 PM

OK I finally fixed it woohoo!!!!!!!!!!

Very simple (Once you know!)

Go to my documents/MiniDSP...till you find the "setting.xml" file and delete it.

 

That's it...

 

Thanks all for trying to help

 

Kind regards,



#26 maxmercy

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Posted 10 October 2014 - 12:17 AM

Glad you got it sorted...

 

In your case, you may try to just to the sub out EQ, but it will not be the same as individual channel EQ.  For the films I have BassEQ'ed, I usually have 2-3 different curves (LFE, LCR, Surrounds have separate ones).

 

JSS



#27 wth718

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Posted 10 October 2014 - 12:56 PM

The configuration files maxmercy posted are for the nanoavr only. 

 

Other minidsp products can be used for eq, and you can do the eq on the subwoofer system alone.

To get good results with eq on the sub system you should run bass management for all channels.

No, it will not be exactly like individual eq on all channels, but with proper bass management it will be very close for many soundtracks.

 

The bass eq entries I made have descriptions for minidsp filters, mostly low-shelve.

Those filter coefficients are compatible for all minidsp products.

 

I have testet a couple of movies running Bass EQ on the subwoofer minidsp, it works very well.

Thanks!

 

That will be my project for this weekend. I'm pretty excited to hear the results.



#28 wth718

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Posted 12 October 2014 - 02:23 PM

Can I ask you guys a favor? In addition to posting the xml settings, can you describe the changes you made to the LFE channel so that those of us without nanovr's can attempt to replicate it?



#29 maxmercy

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Posted 12 October 2014 - 05:31 PM

Check the TF4 post.  Settings posted.

 

JSS



#30 maxmercy

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Posted 13 October 2014 - 12:08 AM

The Matrix:

 

A great film that gets better with BassEQ, and only has one correction for all channels, so it works VERY well for those that have a miniDSP only for the subwoofer out.

 

All Channels:

 

1. Gain -7dB

2. Shelf Filter 27.5Hz, Q .7916, Gain +5dB

3. Shelf Filter 27.5Hz, Q .7916, Gain +5dB

4. Shelf Filter 27.5Hz, Q .7916, Gain +5dB

5. Shelf Filter 27.5Hz, Q .7916, Gain +5dB

 

Go from this:

 

post-17-0-32807800-1397277486.png

 

To This:

 

post-20-0-44520900-1413158905.jpg

 

 

JSS

 

nanoAVR .xml file attached.

Attached Files



#31 wth718

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Posted 13 October 2014 - 01:57 AM

Check the TF4 post.  Settings posted.

 

JSS

Sweet! Thanks.



#32 maxmercy

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Posted 13 October 2014 - 02:54 AM

Post your impressions of any of the BassEQ'ed films...

 

JSS



#33 nube

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Posted 13 October 2014 - 10:21 PM

The Matrix BassEQ version is a definite improvement, but you'll likely notice it increases the ULF hum that's present in all the scenes where they're on the Nebuchadnezzar.  Otherwise, a great reversal of the studio's filtering on this one!



#34 maxmercy

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Posted 14 October 2014 - 06:18 AM

Yes, those sensitive to ULF/Infrasonic sound will notice it for sure.  It was all I could get back given the fact that The Matrix appears to have been recorded/processed at least in part with analog equipment.  Can you believe it is now a 15 year old movie???

 

JSS



#35 bmoney

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Posted 14 October 2014 - 12:15 PM

Is putting these settings into a minidsp safe? Doesn't this kill your amp headroom

#36 maxmercy

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Posted 14 October 2014 - 03:52 PM

Yes, if you use the nanoAVR settings.  Note that each of the settings I have put forth include a Gain at the beginning, usually -7dB.  If for any reason there is a burst or sound above the maximum allowed by 7.1 (128dB), when played back at reference (+7dBRef in most cases) I will let you guys know.

 

For those not using nanoAVR, I cannot make any such guarantees, as you cannot increase the headroom before the signal gets to your AVR by 'turning it down', like I do within nanoAVR before boost.  Some AVRs have 'input level' settings even for HDMI, and you may be able to do it that way. 

 

There is significant content that was not there in the original presentation, so be careful.  If your system cannot handle what 7.1 can dish out at your preferred listening level,  start at lower volume and creep up.

 

I will put a 'worst case scenario' and test disc together at some point so that people can adequately assess their systems for headroom, hopefully sometime this winter.

 

JSS 



#37 Kvalsvoll

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Posted 14 October 2014 - 08:11 PM

Is putting these settings into a minidsp safe? Doesn't this kill your amp headroom

Not necessarily.

 

Note that this is not just a bass-boost.

The level of the signal that gets amplfied is very low to begin with - that is why we do the Bass EQ.

This low-level signal is then amplified up to match the level of the rest.

In many cases you will find that the overall peak level has not changed much at all, after applying the Bass EQ.


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#38 maxmercy

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Posted 16 October 2014 - 07:13 PM

Man of Steel BassEQ:

 

To go from this:

 

post-17-0-32212000-1384267547.png

 

To this:

 

post-20-0-34217500-1413486566.jpg

 

Apply the following:

 

LCRSurrounds:

 

1. Gain -7dB

2. Low Shelf 27.5Hz, Q of 0.707, and Gain +6dB

3. Low Shelf 27.5Hz, Q of 0.707, and Gain +6dB

4. Low Shelf 27.5Hz, Q of 0.707, and Gain +5dB

5. Low Shelf 27.5Hz, Q of 0.707, and Gain +5dB

 

LFE:

 

1. Gain -7dB

2. Low Shelf 20Hz, Q of 0.868, Gain of +5dB

3. Low Shelf 20Hz, Q of 0.868, Gain of +5dB

4. Low Shelf 20Hz, Q of 0.868, Gain of +5dB

5. Low Shelf 20Hz, Q of 0.868, Gain of +5dB

6. Low Shelf 40Hz, Q of 0.5, Gain of +3dB

 

SIGNIFICANT improvement.  That 1Hz spike is not noise, and is a discrete effect encoded at 1:24:14.  A challenge to all of those ULF-capable.

 

I'll attach a nanoAVR .xml file soon.

 

 

JSS

Attached Files



#39 bmoney

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Posted 16 October 2014 - 10:23 PM

So basically these cant be done with just a minidsp 2x4

#40 maxmercy

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Posted 17 October 2014 - 06:19 AM

Not really.  You will not end up with the same result as I have posted above with the multiple correction curves, like in MoS.  It will be different, but may also be better than the original, too hard to say, as with the 2x4, you will be essentially applying the same curve to all the channels, and I customize curves for each channel (within reason).

 

For the films with a single correction like The Matrix, it should work well, but go up in volume carefully, as some of the boosts are pretty large.

 

JSS 






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