Sweet Room & dB_GAIN_L, dB_GAIN_R problem

[RayMo]

Hi,

I have 1000 Pro and doing some bass adjustments with the Sweet Room. (I use Roon but I do not use DSP there.)

My Sweet Room settings in the eq.txt file changes the sound in bass frequencies, but does not obey my general gain setting. I am trying to decrease it for both channels, but volume stays same in Main and Alternate - comparing by ear with higher than bass frequencies. And now I am getting distortion on bass frequencies. -12db or -26db, no effect, SAM on or off.

Can you help me on this, is there something wrong with settings?

Kind Regards, RayMo


Setting file for both Devs:

// Name for this EQ configuration
"NAME":"RamiEQ",

// Remote indicator
// Allow for the bottom's right button to toggle between main and alternate set of EQs
// Useful in A/B tests or during fine EQ tuning
"REMOTE",

// Parameters for left channel
// Static dB gain for the left channel
"dB_GAIN_L":"-12.0", // main gain
"dB_GAIN_L_ALT":"0.0", // alternate gain

// Peak/Notch filters for the left channel (main)
// syntax:"EQ_x_L":[Frequency, dB_gain, Q_factor]
"EQ_1_L":[40.0, 6.0, 5.0],
"EQ_2_L":[59.0, 5.0, 6.0],
"EQ_3_L":[61.0, 3.0, 6.0],
"EQ_4_L":[65.0, 5.0, 4.0],
"EQ_5_L":[0.0, 0.0, 0.0],
"EQ_6_L":[0.0, 0.0, 0.0],
"EQ_7_L":[0.0, 0.0, 0.0],
"EQ_8_L":[0.0, 0.0, 0.0],
"EQ_9_L":[0.0, 0.0, 0.0],

// Peak/Notch filters for the left channel (alternate)
// syntax:"EQ_x_L_ALT":[Frequency, dB_gain, Q_factor]
"EQ_1_L_ALT":[0.0, 0.0, 0.0],
"EQ_2_L_ALT":[0.0, 0.0, 0.0],
"EQ_3_L_ALT":[0.0, 0.0, 0.0],
"EQ_4_L_ALT":[0.0, 0.0, 0.0],
"EQ_5_L_ALT":[0.0, 0.0, 0.0],
"EQ_6_L_ALT":[0.0, 0.0, 0.0],
"EQ_7_L_ALT":[0.0, 0.0, 0.0],
"EQ_8_L_ALT":[0.0, 0.0, 0.0],
"EQ_9_L_ALT":[0.0, 0.0, 0.0],

// Parameters for right channel
// Static dB gain for the right channel
"dB_GAIN_R":"-12.0", // main gain
"dB_GAIN_R_ALT":"0.0", // alternate gain

// Peak/Notch filters for the right channel (main)
// syntax:"EQ_x_R":[Frequency, dB_gain, Q_factor]
"EQ_1_R":[40.0, -6.0, 5.0],
"EQ_2_R":[59.0, 6.0, 5.0],
"EQ_3_R":[65.0, 5.0, 4.0],
"EQ_4_R":[70.0, 6.0, 6.0],
"EQ_5_R":[0.0, 0.0, 0.0],
"EQ_6_R":[0.0, 0.0, 0.0],
"EQ_7_R":[0.0, 0.0, 0.0],
"EQ_8_R":[0.0, 0.0, 0.0],
"EQ_9_R":[0.0, 0.0, 0.0],

// Peak/Notch filters for the right channel (alternate)
// syntax:"EQ_x_R_ALT":[Frequency, dB_gain, Q_factor]
"EQ_1_R_ALT":[0.0, 0.0, 0.0],
"EQ_2_R_ALT":[0.0, 0.0, 0.0],
"EQ_3_R_ALT":[0.0, 0.0, 0.0],
"EQ_4_R_ALT":[0.0, 0.0, 0.0],
"EQ_5_R_ALT":[0.0, 0.0, 0.0],
"EQ_6_R_ALT":[0.0, 0.0, 0.0],
"EQ_7_R_ALT":[0.0, 0.0, 0.0],
"EQ_8_R_ALT":[0.0, 0.0, 0.0],
"EQ_9_R_ALT":[0.0, 0.0, 0.0],

[jvoki]

Hi
I don't know if I will help you but I have a few notes, 

- somewhere I read that the max gain is 12 dB I don't know if it is an absolute number or the sum of individual gains
- I think you use quite extreme values in the narrow frequency band, is it a measurement output or your choice?

[alandbush]

The EQ is most unusual 

Perceived wisdom suggests that frequency boosts, particularly of an extreme nature, should be avoided.
There are may reasons and a quick search of the internet will provide much more information.

Check out the REW Why Can't I Fix All my Acoustic Problems with EQ?, in particular the 'Headroom' section which may explain your issue.

[attachment=4658]

[attachment=4659]

[thumb5]

Also, if you're applying gain to try and correct notches (nulls) in bass response, that's usually a bad idea and could result in the distortion you mentioned.