Keith_W
Major Contributor
I would like to gather opinions from ASR members as to whether we should apply room correction to the Schroder frequency, or whether we should do full range correction from 20Hz - 20kHz. There appear to be two schools of thought:
- Correction to Schroder: aims to only correct bass peaks and dips, leaving everything above Schroder uncorrected.
- Full range correction: bass peaks and dips are corrected, and an overall target curve at the listening position applied.
In my own system, I only correct to Schroder. I have tried a full range correction before, but it sounds awful. And this is with using very generous smoothing for upper frequencies. This made me ask myself whether there is something I am not measuring which, when correction is applied, makes the upper frequencies sound shrill (even with the Harman curve). The most obvious thing I am not measuring is the speaker's off-axis response and sound power, because it is not easy for me to do so. My speakers weigh 110kg and are physically massive, so it's not easy to take them outside and hoist them without hiring a forklift or something similar.
I have seen debates between proponents of both approaches. My theory for people having different approaches is that different systems need different types of correction. For one, most of us do not know what the directivity of our speakers are, and even if these specs are published, we can't exactly load them into our DSP software for correction. Also, different rooms may modify the spectral response in different ways.
So, I would like to know: which approach do you use, and why?
Hoping to hear responses from @mitchco and @UliBru
- Correction to Schroder: aims to only correct bass peaks and dips, leaving everything above Schroder uncorrected.
- Full range correction: bass peaks and dips are corrected, and an overall target curve at the listening position applied.
In my own system, I only correct to Schroder. I have tried a full range correction before, but it sounds awful. And this is with using very generous smoothing for upper frequencies. This made me ask myself whether there is something I am not measuring which, when correction is applied, makes the upper frequencies sound shrill (even with the Harman curve). The most obvious thing I am not measuring is the speaker's off-axis response and sound power, because it is not easy for me to do so. My speakers weigh 110kg and are physically massive, so it's not easy to take them outside and hoist them without hiring a forklift or something similar.
I have seen debates between proponents of both approaches. My theory for people having different approaches is that different systems need different types of correction. For one, most of us do not know what the directivity of our speakers are, and even if these specs are published, we can't exactly load them into our DSP software for correction. Also, different rooms may modify the spectral response in different ways.
So, I would like to know: which approach do you use, and why?
Hoping to hear responses from @mitchco and @UliBru