• Registered: 2020-02-10
  • Posts: 34

Topic: How to input 10 band eq into the 5 band eq?

I love playing with the eq,
The Adi 2 has a sweet 5 band eq.

Most instructions I get from different sources to try certain eqs are for 10 band.

How do I get a 10band instructional to translate to the 5band the adi2 has?

For example

Filter 1: ON PK Fc 31 Hz Gain -1.0 dB Q 1.41
Filter 2: ON PK Fc 62 Hz Gain -2.4 dB Q 1.41
Filter 3: ON PK Fc 125 Hz Gain -4.1 dB Q 1.41
Filter 4: ON PK Fc 250 Hz Gain -3.6 dB Q 1.41
Filter 5: ON PK Fc 500 Hz Gain -0.9 dB Q 1.41
Filter 6: ON PK Fc 1000 Hz Gain 0.6 dB Q 1.41
Filter 7: ON PK Fc 2000 Hz Gain 0.2 dB Q 1.41
Filter 8: ON PK Fc 4000 Hz Gain 6.0 dB Q 1.41
Filter 9: ON PK Fc 8000 Hz Gain 0.7 dB Q 1.41
Filter 10: ON PK Fc 16000 Hz Gain -12.2 dB Q 1.41

  • N00b
  • N00b
  • MADI hero
  • Offline
  • From: Near Paris, France
  • Registered: 2018-10-03
  • Posts: 460

Re: How to input 10 band eq into the 5 band eq?

ItchyEars wrote:

I love playing with the eq,
The Adi 2 has a sweet 5 band eq.

Most instructions I get from different sources to try certain eqs are for 10 band.

How do I get a 10band instructional to translate to the 5band the adi2 has?

For example

Filter 1: ON PK Fc 31 Hz Gain -1.0 dB Q 1.41
Filter 2: ON PK Fc 62 Hz Gain -2.4 dB Q 1.41
Filter 3: ON PK Fc 125 Hz Gain -4.1 dB Q 1.41
Filter 4: ON PK Fc 250 Hz Gain -3.6 dB Q 1.41
Filter 5: ON PK Fc 500 Hz Gain -0.9 dB Q 1.41
Filter 6: ON PK Fc 1000 Hz Gain 0.6 dB Q 1.41
Filter 7: ON PK Fc 2000 Hz Gain 0.2 dB Q 1.41
Filter 8: ON PK Fc 4000 Hz Gain 6.0 dB Q 1.41
Filter 9: ON PK Fc 8000 Hz Gain 0.7 dB Q 1.41
Filter 10: ON PK Fc 16000 Hz Gain -12.2 dB Q 1.41

I'm no specialist but I've seen in REW a tool to generate EQ with a constraint number of bands smile

ADI-2 DAC (with stock PSU) - Neumann KH 310 A monitors - Cheap USB and XLR cables

N00b's Website

3 Reply by Curt962 (edited by Curt962 2020-02-12 18:50:51)

  • Registered: 2019-01-07
  • Posts: 1,462

Re: How to input 10 band eq into the 5 band eq?

Itchy,

One could simply use EVERY OTHER freq as a convenient workaround.   10/2=5

5 bands of EQ seems generous already, and calls for more, especially in the Home/Casual Listening Environment are indicative of problems elsewhere in the Monitoring Chain.  A Room, Speakers or Phones needing such extensive Surgical Correction by EQ typically means something is deficient with THEM.  Not your EQ.

Rather than input arbitrary EQ values that may have Little/No relevance to your specific set-up...Collect some actual FR data on YOUR system.   Then...you have insights on how to further proceed. 

Edit:  Peruse this Manifesto!  We had a lot of Fun, and you're welcome to Chime in with any Room/Speaker questions you have.   With enough Head-Scratching, we had a pretty good track record of success.

https://forum.rme-audio.de/viewtopic.ph … 1&p=11

PS.  Nice you got your new DAC unscrambled.

Best,

Curt

Vintage 2018 ADI-2 DAC. "Classic AKM4490 Edition"
Cables:  Red, and White Ones.
Speakers:  Yes
  • KaiS
  • DAW Mastermind
  • Offline
  • From: Germany
  • Registered: 2020-02-05
  • Posts: 3,112

Re: How to input 10 band eq into the 5 band eq?

EQ setting are only valid für the exact device model they are created with.

There are too many variations in filter shapes, Constant-Q, Variable-Q, Proportional-Q and everything inbetween, not to mention other architectural differences.

The only way to "transfer" a filter curve, and I did that quite often lately, is to measure the resulting EQ curve and then set up the EQ in the other device using measurement tools.

I do use AudioTools from Studio Six for that purpose.
But any other precise realtime frequency response measuring tool can do the job.

As RME's ADI-2 5 Band Full Parametric EQ is very versatile, it's easy to approximate a 10 Band Octave EQ curve with high precision.

The other way round is usually not possible.

KaiS's Website