2019-09-22_ML_INT
2019-09-22_ML_INT_HALBZU_NAEHER
2019-09-22_ML_INT_HALBZU_NAEHER_2
2019-09-22_ML_INT_VORH_ZU

L
R
1
2019-09-22_ML_INT
L
R
1
2
2019-09-22_ML_INT_HALBZU_NAEHER
L
R
1
2
2019-09-22_ML_INT_HALBZU_NAEHER_2
L
R
1
2019-09-22_ML_INT_VORH_ZU
Microphone and Speaker Positions. White circle: Recommended listening area (can be extended) - see ITU-R BS1116-1.
2019-09-22_ML_INT | 22.09.2019 19:16:42
Distances [cm] Mic - L | Mic - R L - R Positions (x, y, h)
if changed
1
    L_1   R_1
331 | 332 209Mic: (158, 38, 105)
L: (50, 350, 120)
R: (259, 354, 120)
Specification NEW
Device Cat S60 Release: 6.0.1Device fequency response correctd.
Microphone Default
Logsweep 20 - 20000 Hz, 2 s
2019-09-22_ML_INT_HALBZU_NAEHER | 22.09.2019 19:51:42
1
    L_1
342 | 343 174Mic: (129, 18, 97)
L: (50, 350, 120)
R: (224, 347, 120)
2
    L_2
276 | 277 174Mic: (130, 87, 99)
1
    R_1
342 | 343 174Mic: (129, 18, 97)
2
    R_2
276 | 277 174Mic: (130, 87, 99)
Specification NEW
Device Cat S60 Release: 6.0.1Device fequency response correctd.
Microphone Default
Logsweep 20 - 20000 Hz, 2 s
2019-09-22_ML_INT_HALBZU_NAEHER_2 | 22.09.2019 20:11:26
1
    L_1
204 | 210 173Mic: (131, 41, 84)
L: (47, 223, 120)
R: (220, 228, 120)
2
    L_2
175 | 178 173Mic: (135, 74, 93)
1
    R_1
204 | 210 173Mic: (131, 41, 84)
2
    R_2
175 | 178 173Mic: (135, 74, 93)
Specification NEW
Device Cat S60 Release: 6.0.1Device fequency response correctd.
Microphone Default
Logsweep 20 - 20000 Hz, 2 s
2019-09-22_ML_INT_VORH_ZU | 22.09.2019 19:23:10
1
    L_1   R_1
326 | 328 209Mic: (150, 41, 97)
L: (50, 350, 120)
R: (259, 349, 120)
Specification NEW
Device Cat S60 Release: 6.0.1Device fequency response correctd.
Microphone Default
Logsweep 20 - 20000 Hz, 2 s

Evaluation


1 2019-09-22_ML_INT L_1 R_1

2 2019-09-22_ML_INT_HALBZU_NAEHER L_1 L_2 R_1 R_2

3 2019-09-22_ML_INT_HALBZU_NAEHER_2 L_1 L_2 R_1 R_2

4 2019-09-22_ML_INT_VORH_ZU L_1 R_1

All measurements compared
Summary
All criteria
summarized
Bass Quality
Good if bass is precise,
punchy not boomy *
Precision
Good if musicians are
localisable and clear
Listener Enviroment
Good if listener feels
like "in the music"
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
* Depth and strength are not graded: For big woofers the grading is harder.

Sound quality at the individual listening positions:
L
R
1
2019-09-22_ML_INT
L
R
1
2
2019-09-22_ML_INT_HALBZU_NAEHER
L
R
1
2
2019-09-22_ML_INT_HALBZU_NAEHER_2
L
R
1
2019-09-22_ML_INT_VORH_ZU
Legend
Bass Quality
Precision
Listener Enviroment
White circle: Recommended area (can be extended) - see ITU-R BS1116-1.

This is the summary of the scores described in detail below. Each loudspeaker arrangement is evaluated separately. If more than one listening position resp. microphone placement is measured, the average rating is displayed. Technical Background

Especially in the bass range, the sound quality depends strongly on the interaction between loudspeakers and room. Reflections on walls or large objects can cause amplification and cancellation at certain frequencies. This results in a ripple in the frequency response, its strength is shown in the tables. By the interaction of several reflections the amplifications can build up to room modes, similar to the water in a bathtub when it is moved back and forth in the appropriate frequency. The algorithm finds the three most prominent frequencies, which are most likely room modes, and outputs them as well. The first table contains the summary of all measurements of the respective measurement series, the second table shows the individual measurements.

2019-09-22_ML_INT
Considered Frequency Range 20 - 180 Hz  
Avg. Ripple in Frequency Response 11 dB A
Avg. Deviation Seat to Seat NaN dB
Worst Room Modes 6, 6, 5 dB at 80, 170, 119 Hz
  Room Modes Ripple
Frequency80 Hz170 Hz119 Hz20 - 180 Hz
Wavelength4.3 m2.0 m2.9 m
Wavelength / 41.1 m0.5 m0.7 m
L_1 - 5 dB 5 dB 11 dB
R_1 6 dB 7 dB - 11 dB
2019-09-22_ML_INT_HALBZU_NAEHER
Considered Frequency Range 20 - 180 Hz  
Avg. Ripple in Frequency Response 11 dB A
Avg. Deviation Seat to Seat 2.9 dB A+
Worst Room Modes 3, 4, 4 dB at 119, 116, 80 Hz
  Room Modes Ripple
Frequency119 Hz116 Hz80 Hz20 - 180 Hz
Wavelength2.9 m3.0 m4.3 m
Wavelength / 40.7 m0.7 m1.1 m
L_1 5 dB - 2 dB 11 dB
L_2 1 dB 5 dB 3 dB 11 dB
R_1 4 dB 4 dB 6 dB 11 dB
R_2 - 3 dB 5 dB 11 dB
2019-09-22_ML_INT_HALBZU_NAEHER_2
Considered Frequency Range 20 - 180 Hz  
Avg. Ripple in Frequency Response 11 dB A
Avg. Deviation Seat to Seat 2.6 dB A++
Worst Room Modes 4, 5, 4 dB at 49, 174, 170 Hz
  Room Modes Ripple
Frequency49 Hz174 Hz170 Hz20 - 180 Hz
Wavelength7.0 m2.0 m2.0 m
Wavelength / 41.8 m0.5 m0.5 m
L_1 - 3 dB - 11 dB
L_2 5 dB - 3 dB 11 dB
R_1 3 dB 6 dB 6 dB 11 dB
R_2 4 dB 5 dB 5 dB 11 dB
2019-09-22_ML_INT_VORH_ZU
Considered Frequency Range 20 - 180 Hz  
Avg. Ripple in Frequency Response 11 dB A
Avg. Deviation Seat to Seat NaN dB
Worst Room Modes 3, 6, 5 dB at 77, 165, 116 Hz
  Room Modes Ripple
Frequency77 Hz165 Hz116 Hz20 - 180 Hz
Wavelength4.4 m2.1 m3.0 m
Wavelength / 41.1 m0.5 m0.7 m
L_1 2 dB - 4 dB 11 dB
R_1 6 dB 6 dB 5 dB 11 dB

Suggestions for Improvement

By comparing several measurements with different loudspeaker and listening position arrangements, the optimum should first be found in this respect. If a listening test was carried out at the end of the measurement, the notes should also be taken into account. Only after this should damping measures or electronic corrections be taken. This is dealt with in the chapter "Suggestions for improvement".

2019-09-22_ML_INT
2019-09-22_ML_INT_HALBZU_NAEHER
2019-09-22_ML_INT_HALBZU_NAEHER_2
2019-09-22_ML_INT_VORH_ZU
No fluctuations were detected that were significantly dependent on the position of the listening places. However, no listening places were investigated that were far apart in relation to the dimension of the "wavelength / 4" values. No fluctuations were detected that were significantly dependent on the placement of the speakers. Admittedly, the examined arrangements are in relation to the dimension of the "wavelength / 4" values very close to each other.

The use of bass absorbers does not seem to be necessary - depending on the position of the speakers. The most favourable positioning can be found in the respective ratings. Because relatively few places were examined in relation to the dimension of the "wavelength / 4" values, the result may change if more listening places are added.

Absorbers
Helmholtz resonators are specifically proposed for the absorption of a) narrow-band, b) isolated, c) low-frequency room modes.
2019-09-22_ML_INT
2019-09-22_ML_INT_HALBZU_NAEHER
2019-09-22_ML_INT_HALBZU_NAEHER_2
2019-09-22_ML_INT_VORH_ZU
Here too many peaks in the frequency resopnse were found. Therefore, no resonance absorbers are proposed. Instead, broadband membrane (or limp mass) absorbers could be used.

Important for the locatability of the instruments is the equality of both stereo channels. The average deviation of the Frequency responses are displayed in the first table.

The second table shows the calculated and measured values of the so-called floor bounce: During the measurement the locations of the loudspeaker and microphone were noted. From this, the detour of the sound reflected on the floor was calculated in comparison to the direct sound. The value is displayed as "Deviation". f↓ and f↑ are the frequencies calculated from these values, at which a weakening or amplification is to be expected. In the next column these are compared with the measured frequency response. The weaker the values, the better the evaluation.

The third table gives an overview of possible colorations caused by all reflections occurring in the room. The average fluctuation of the frequency response due to comb filter effects is used as a measure. The area with the strongest fluctuations is displayed in a separate column.

2019-09-22_ML_INT
Channel EqualityAverageWorst... atGrade
L_1 R_1 4 dB 7 dB 98-106 Hz A+
  Calculated from Geometry Measured Amplitude Fluctuation
Floor BounceDeviationf ↓ f ↑ Peak_1 - Dip_1Grade
L_1 69 cm 248 Hz
743 Hz
496 Hz
991 Hz
Not applicable*
R_1 69 cm 248 Hz
745 Hz
497 Hz
994 Hz
Not applicable*
* The calculated frequency is outside the specified interval 80 - 220 Hz. Go to CONF for revision.

ColorationAverage fluctuation at
220 - 7000 Hz, 0 - 10 ms
Most significant Grade
L_116 dB43 dB at 5777 Hz C
R_114 dB47 dB at 2888 Hz A
2019-09-22_ML_INT_HALBZU_NAEHER
Channel EqualityAverageWorst... atGrade
L_1 R_1 4 dB 9 dB 125 Hz A+
L_2 R_2 4 dB 10 dB 136 Hz A+
  Calculated from Geometry Measured Amplitude Fluctuation
Floor BounceDeviationf ↓ f ↑ Peak_1 - Dip_1Grade
L_1 63 cm 274 Hz
821 Hz
547 Hz
1095 Hz
Not applicable*
L_2 76 cm 226 Hz
678 Hz
452 Hz
905 Hz
Not applicable*
R_1 62 cm 275 Hz
824 Hz
549 Hz
1098 Hz
Not applicable*
R_2 76 cm 227 Hz
681 Hz
454 Hz
908 Hz
Not applicable*
* The calculated frequency is outside the specified interval 80 - 220 Hz. Go to CONF for revision.

ColorationAverage fluctuation at
220 - 7000 Hz, 0 - 10 ms
Most significant Grade
L_111 dB32 dB at 6485 Hz A++
L_210 dB28 dB at 3856 Hz A++
R_110 dB34 dB at 1155 Hz A++
R_29 dB38 dB at 3856 Hz A++
2019-09-22_ML_INT_HALBZU_NAEHER_2
Channel EqualityAverageWorst... atGrade
L_1 R_1 3 dB 5 dB 82 Hz A+
L_2 R_2 4 dB 7 dB 106 Hz A+
  Calculated from Geometry Measured Amplitude Fluctuation
Floor BounceDeviationf ↓ f ↑ Peak_1 - Dip_1Grade
L_1 82 cm 209 Hz
626 Hz
417 Hz
834 Hz
Not applicable*
L_2 99 cm 173 Hz
519 Hz
346 Hz
692 Hz
Not applicable*
R_1 81 cm 213 Hz
639 Hz
426 Hz
852 Hz
Not applicable*
R_2 98 cm 174 Hz
523 Hz
349 Hz
698 Hz
Not applicable*
* The calculated frequency is outside the specified interval 80 - 220 Hz. Go to CONF for revision.

ColorationAverage fluctuation at
220 - 7000 Hz, 0 - 10 ms
Most significant Grade
L_122 dB59 dB at 6485 Hz D
L_217 dB47 dB at 3639 Hz C
R_118 dB41 dB at 1530 Hz D
R_219 dB48 dB at 4117 Hz D
2019-09-22_ML_INT_VORH_ZU
Channel EqualityAverageWorst... atGrade
L_1 R_1 4 dB 7 dB 196 Hz A+
  Calculated from Geometry Measured Amplitude Fluctuation
Floor BounceDeviationf ↓ f ↑ Peak_1 - Dip_1Grade
L_1 65 cm 265 Hz
795 Hz
530 Hz
1060 Hz
Not applicable*
R_1 64 cm 267 Hz
800 Hz
533 Hz
1067 Hz
Not applicable*
* The calculated frequency is outside the specified interval 80 - 220 Hz. Go to CONF for revision.

ColorationAverage fluctuation at
220 - 7000 Hz, 0 - 10 ms
Most significant Grade
L_112 dB36 dB at 6485 Hz A+
R_111 dB38 dB at 3856 Hz A++

Suggestions for Improvement

The channel equality is rated as 2019-09-22_ML_INT: A+ 2019-09-22_ML_INT_HALBZU_NAEHER: A+ 2019-09-22_ML_INT_HALBZU_NAEHER_2: A+ 2019-09-22_ML_INT_VORH_ZU: A+
Anyway: For Improvements it should first be examined whether differences are caused by the room or by the inequality of the speakers. For this purpose, the speakers should first be placed directly next to each other and checked (eg. with white noise), if still differences are audible. Only if not, the cause is to be found in the room. Otherwise, check the polarity of the connections first. If the asymmetry of the room can not be removed, the speakers can be placed closer together for a better stereo image.

Reflections from the floor and ceiling usually worsen the sound, while reflections from the side walls may be desirable. We can tell this apart thanks to our lateral ears. With a measuring microphone, on the other hand, this is not directly possible. Instead, the expected frequencies for floor reflections are derived from the measured distances between loudspeakers, Microphone and floor are calculated and compared with the measured frequency response. For a reliable result, it is important that the stored positions are are accurate enough (2019-09-22_ML_INT: undefined 2019-09-22_ML_INT_HALBZU_NAEHER: undefined 2019-09-22_ML_INT_HALBZU_NAEHER_2: undefined 2019-09-22_ML_INT_VORH_ZU: undefined ) and a sufficient number of measurements have been made. 2019-09-22_ML_INT: 2019-09-22_ML_INT_HALBZU_NAEHER: 2019-09-22_ML_INT_HALBZU_NAEHER_2: 2019-09-22_ML_INT_VORH_ZU: This measurement includes too few usable measurements.

2019-09-22_ML_INT
The average sound coloration is rated as B. Therefore absorbers could be useful. Average frequency response below 140 Hz appears 6 dB stronger, which can increase with the use of (further) absorbers and must therefore be balanced if necessary. **2019-09-22_ML_INT_HALBZU_NAEHER
The average sound coloration is rated as A++. Therefore no (additional) absorbers seem to be necessary. Average frequency response below 2500 Hz appears 6 dB stronger, which also speaks against the use of (further) absorbers. **2019-09-22_ML_INT_HALBZU_NAEHER_2
The average sound coloration is rated as D. Therefore absorbers could be useful. Average frequency response below 2500 Hz appears 4 dB stronger, which can increase with the use of (further) absorbers and must therefore be balanced if necessary. **2019-09-22_ML_INT_VORH_ZU
The average sound coloration is rated as A+. Therefore no (additional) absorbers seem to be necessary. Average frequency response below 140 Hz appears 5 dB stronger, which also speaks against the use of (further) absorbers. **


** The measurement was done with an uncalibrated microphone. Therefore, this can rather be used as a guide, provided that the characteristics of the microphone can be estimated by comparison measurements.

Not all reflections are bad. Not even recording studios are designed as completely "dead" rooms. Lateral diffuse reflections can create a pleasant, enveloping impression for the listener. The listener does not look at the music as if through a window, but feels "in" the music. The prerequisite for this is an appropriate for T_60 (reverberation time) and that the decay of the reverb is as uniform as possible. The table therefore shows the most obvious irregularity, i.e. the moment after a sound event at which the reverberation decays least evenly. In addition to discoloration of the sound and deterioration of the localization, such irregularities can produce an unpleasant flutter echo. This is usually caused by reflections on walls or objects in the room. The table shows the difference in transit time between the direct sound from the loudspeaker and the reflected sound is in ms. and cm together with the strength in dB. In the chapter "Suggestions for Improvement" this serves as a basis to eliminate the causes.

2019-09-22_ML_INT
ReverbrationT60Most obvious irregularity Grade
L_1 512 ms480 cm (14 ms): 10 dBsound may be dry
R_1 530 ms457 cm (13 ms): 10 dBsound may be dry
Avg. uniformity of decay in first 15 ms A++
2019-09-22_ML_INT_HALBZU_NAEHER
ReverbrationT60Most obvious irregularity Grade
L_1 634 ms480 cm (14 ms): 11 dBsound may be dry
L_2 517 ms480 cm (14 ms): 12 dBsound may be dry
R_1 609 ms411 cm (12 ms): 10 dBsound may be dry
R_2 483 ms114 cm (3 ms): 14 dBsound may be dry
Avg. uniformity of decay in first 15 ms A++
2019-09-22_ML_INT_HALBZU_NAEHER_2
ReverbrationT60Most obvious irregularity Grade
L_1 618 ms434 cm (13 ms): 10 dBsound may be dry
L_2 593 ms457 cm (13 ms): 10 dBsound may be dry
R_1 709 ms68 cm (2 ms): 16 dBsound may be dry
R_2 615 ms160 cm (5 ms): 12 dBsound may be dry
Avg. uniformity of decay in first 15 ms A+
2019-09-22_ML_INT_VORH_ZU
ReverbrationT60Most obvious irregularity Grade
L_1 529 ms228 cm (7 ms): 11 dBsound may be dry
R_1 408 ms480 cm (14 ms): 9 dBsound may be dry
Avg. uniformity of decay in first 15 ms A++

* microphone uncalibrated.

Suggestions for Improvement

2019-09-22_ML_INT
The measured reverbration time T_60 is on average 521 ms. Which is even lower than the preferred interval of 0.8 ... 2.0 s. From this perspective, no further acoustic treatment is required. Only individual resonances should be targeted if necessary. Check: Clap your hands and estimate the duration of the audible reverberation. This should be comparable with the measured value.
The reverberation in the room is not optimally uniform. This can be caused by reflections. The most prominent reflection is listed in the table. In order to find its cause, the surface that reflects the sound from the loudspeaker to the listening position must be found. For this purpose, a cord can be stretched between the loudspeaker and the listening position, which is then extended by the amount shown in the table. The ends of the extended cord must be attached to the loudspeaker and listening position. Hard, smooth surfaces that can just be touched with the stretched cord (to an accuracy of a few centimeters) may be the cause. First cover them experimentally with at least 20 cm of sound absorbing material (if not available bedding, clothing or mattresses). Then check improvements by measurement and listening test.

2019-09-22_ML_INT_HALBZU_NAEHER
The measured reverbration time T_60 is on average 561 ms. Which is even lower than the preferred interval of 0.8 ... 2.0 s. From this perspective, no further acoustic treatment is required. Only individual resonances should be targeted if necessary. Check: Clap your hands and estimate the duration of the audible reverberation. This should be comparable with the measured value.
The reverberation in the room is not optimally uniform. This can be caused by reflections. The most prominent reflection is listed in the table. In order to find its cause, the surface that reflects the sound from the loudspeaker to the listening position must be found. For this purpose, a cord can be stretched between the loudspeaker and the listening position, which is then extended by the amount shown in the table. The ends of the extended cord must be attached to the loudspeaker and listening position. Hard, smooth surfaces that can just be touched with the stretched cord (to an accuracy of a few centimeters) may be the cause. First cover them experimentally with at least 20 cm of sound absorbing material (if not available bedding, clothing or mattresses). Then check improvements by measurement and listening test.

2019-09-22_ML_INT_HALBZU_NAEHER_2
The measured reverbration time T_60 is on average 634 ms. Which is even lower than the preferred interval of 0.8 ... 2.0 s. From this perspective, no further acoustic treatment is required. Only individual resonances should be targeted if necessary. Check: Clap your hands and estimate the duration of the audible reverberation. This should be comparable with the measured value.
The reverberation in the room is not optimally uniform. This can be caused by reflections. The most prominent reflection is listed in the table. In order to find its cause, the surface that reflects the sound from the loudspeaker to the listening position must be found. For this purpose, a cord can be stretched between the loudspeaker and the listening position, which is then extended by the amount shown in the table. The ends of the extended cord must be attached to the loudspeaker and listening position. Hard, smooth surfaces that can just be touched with the stretched cord (to an accuracy of a few centimeters) may be the cause. First cover them experimentally with at least 20 cm of sound absorbing material (if not available bedding, clothing or mattresses). Then check improvements by measurement and listening test.

2019-09-22_ML_INT_VORH_ZU
The measured reverbration time T_60 is on average 469 ms. Which is even lower than the preferred interval of 0.8 ... 2.0 s. From this perspective, no further acoustic treatment is required. Only individual resonances should be targeted if necessary. Check: Clap your hands and estimate the duration of the audible reverberation. This should be comparable with the measured value.
The reverberation in the room is not optimally uniform. This can be caused by reflections. The most prominent reflection is listed in the table. In order to find its cause, the surface that reflects the sound from the loudspeaker to the listening position must be found. For this purpose, a cord can be stretched between the loudspeaker and the listening position, which is then extended by the amount shown in the table. The ends of the extended cord must be attached to the loudspeaker and listening position. Hard, smooth surfaces that can just be touched with the stretched cord (to an accuracy of a few centimeters) may be the cause. First cover them experimentally with at least 20 cm of sound absorbing material (if not available bedding, clothing or mattresses). Then check improvements by measurement and listening test.

Start the optimization with the room! It's a kind of foundation for everything coming! The simplest and cheapest step is positioning. Even changes of 20 cm in the placement of speakers and / or listening positions can have a significant impact on the listening experience. Get an overview of the changes in measurements and listening experience at different positions before taking any further action.

In the Bass range reflections and standing waves in the room (so-called room modes) are a decisive factor. Both can't be eliminated electronically, as they emerge after the playback chain and thus are different in each place of the room. On the other hand the reflections on the wall behind the loudspeaker hardly depend on the listening position. If the path to the wall and back to the sound source is equal to the wavelength of the sound, both components match which causes an increase in volume. If it is half as long, they attenuate which causes a decreased volume. Since the exact propagation of the sound depends on the respective loudspeaker construction, the associated values can only be used for orientation to find suspicious spots in the frequency response. Some example values are

Speaker (Front) - Wall Distance [cm] 30 50 100 150
Attenuation at [Hz] 286 172 86 57
Amplification at [Hz] 572 343 172 114

Electronic corrections should therefore not be categorically rejected, but should be applied with the necessary background knowledge: Even if only one room position has been optimized, the result can be disappointing. The measuring microphone could not process the directions of direct sound and reflections in the same way as the individual sense of hearing.

Here you can see the expected effect of the equalizer settings EQ [dB] on the frequency response. If the curve in EQ is flat, the right side shows the measured values at the individual listening positions and "Avg" on the left shows their average.
- Tap on "Avg" to see the situation if equalizer is set
- Tap on "EQ" for the situation without equalizer
Equalization can correct audible peaks that occur equally at all listening positions. Narrow peaks and dips often have little effect can often be ignored. Never try to boost narrow dips: They are caused by cancellations - it would be wasting of speaker’s headroom. It can be an acceptable compromise "to taken the energy" from very disturbing room modes if a reorganization of the room is not possible.

2019-09-22_ML_INT
f [Hz]: 50 63 80 100 125 160 200 250 315 400 500 630 800 1k 1k25 1k6 2k 2k5 3k15 4k


Here you can see the expected effect of the equalizer settings EQ [dB] on the frequency response. If the curve in EQ is flat, the right side shows the measured values at the individual listening positions and "Avg" on the left shows their average.
- Tap on "Avg" to see the situation if equalizer is set
- Tap on "EQ" for the situation without equalizer
Equalization can correct audible peaks that occur equally at all listening positions. Narrow peaks and dips often have little effect can often be ignored. Never try to boost narrow dips: They are caused by cancellations - it would be wasting of speaker’s headroom. It can be an acceptable compromise "to taken the energy" from very disturbing room modes if a reorganization of the room is not possible.
2019-09-22_ML_INT_HALBZU_NAEHER
f [Hz]: 50 63 80 100 125 160 200 250 315 400 500 630 800 1k 1k25 1k6 2k 2k5 3k15 4k


Here you can see the expected effect of the equalizer settings EQ [dB] on the frequency response. If the curve in EQ is flat, the right side shows the measured values at the individual listening positions and "Avg" on the left shows their average.
- Tap on "Avg" to see the situation if equalizer is set
- Tap on "EQ" for the situation without equalizer
Equalization can correct audible peaks that occur equally at all listening positions. Narrow peaks and dips often have little effect can often be ignored. Never try to boost narrow dips: They are caused by cancellations - it would be wasting of speaker’s headroom. It can be an acceptable compromise "to taken the energy" from very disturbing room modes if a reorganization of the room is not possible.
2019-09-22_ML_INT_HALBZU_NAEHER_2
f [Hz]: 50 63 80 100 125 160 200 250 315 400 500 630 800 1k 1k25 1k6 2k 2k5 3k15 4k


Here you can see the expected effect of the equalizer settings EQ [dB] on the frequency response. If the curve in EQ is flat, the right side shows the measured values at the individual listening positions and "Avg" on the left shows their average.
- Tap on "Avg" to see the situation if equalizer is set
- Tap on "EQ" for the situation without equalizer
Equalization can correct audible peaks that occur equally at all listening positions. Narrow peaks and dips often have little effect can often be ignored. Never try to boost narrow dips: They are caused by cancellations - it would be wasting of speaker’s headroom. It can be an acceptable compromise "to taken the energy" from very disturbing room modes if a reorganization of the room is not possible.
2019-09-22_ML_INT_VORH_ZU
f [Hz]: 50 63 80 100 125 160 200 250 315 400 500 630 800 1k 1k25 1k6 2k 2k5 3k15 4k