I don't know about eustachain tube problems, they gave me a nose spray for tube dysfunction with no change. had a CT scan with no conclusions. They sent me to a tinnitus specialist who got all religious on me, it was weird. I've had a few different ENT at the same place look at it with no conclusion, they just say they can't find anything 🙁
I get crackles at high spl and and lower spl on certain freq, like voice range. Talking to ppl on the phone causes it to be pretty bad. Sometimes if I'm lucky ill get a pop and suddenly can hear more but it just goes right back to being crappy. weird thing is it doesn't show up in hearing test, my hearing tests have been flawless with what the ent has described as crazy sensitive hearing. It's all had a pretty major impact on my music and mixing. I keep going though and still get good results.
I want to find a different ent network to try buy I live in the u.s. so health insurance is a joke and makes it hard.
I get crackles at high spl and and lower spl on certain freq, like voice range. Talking to ppl on the phone causes it to be pretty bad. Sometimes if I'm lucky ill get a pop and suddenly can hear more but it just goes right back to being crappy. weird thing is it doesn't show up in hearing test, my hearing tests have been flawless with what the ent has described as crazy sensitive hearing. It's all had a pretty major impact on my music and mixing. I keep going though and still get good results.
I want to find a different ent network to try buy I live in the u.s. so health insurance is a joke and makes it hard.
Disclaimer: I'm not a doctor, and don't even play one on TV.
The CT should rule out major issues, but I'm not sure it's sufficient to check all tube functions.
If you can take them, a high dose oral steroid may be something to try just to see if you can get some relief that way. Might help point to the source of the trouble.
Otovent may seem a little weird, but I'd also try it for $20 if I had something like this going on.
https://www.amazon.com/Otovent-Glue-Ear-Treatment/dp/B01N7HMVXY
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4877436/
"With high-resolution images, the soft and bony anatomy of the Eustachian tube can be assessed in detail. CT and MRI are best suited to identifying features associated with obstructive or patulous Eustachian tube dysfunction, though true assessments of function have only been achieved with contrast enhanced radiographs and scintigraphy. A single modality has yet to provide a complete assessment. No test has entered routine clinical use, but further development and research is underway.
Significant information can be gained from imaging the Eustachian tube, and as faster acquisition techniques are developed, it is possible that dynamic imaging of tubal opening could play an important role in the assessment of patients with ET dysfunction."
https://emedicine.medscape.com/arti...ETD) can,not help eustachian tube dysfunction.
"Eustachian tube dysfunction (ETD) can be treated primarily with a combination of time, autoinsufflation (eg, an Otovent), and oral and nasal steroids (budesonide, mometasone, prednisone, methylprednisolone). The results of one study suggest that intranasal steroid sprays alone do not help eustachian tube dysfunction. [22]
Decongestants (eg, pseudoephedrine, oxymetazoline, phenylephrine) are also helpful, but not as useful for chronic eustachian tube dysfunction (ETD)."
https://med.stanford.edu/ohns/OHNS-...s/conditions/eustachian-tube-dysfunction.html
"Chronic blockage of the Eustachian tube is called Eustachian tube dysfunction. This can occur when the lining of the nose becomes irritated and inflamed, narrowing the Eustachian tube opening or its passageway. Illnesses like the common cold or influenza are often to blame. Pollution and cigarette smoke can also cause Eustachian tube dysfunction. In many areas of the country, nasal allergy (allergic rhinitis) is the major cause of Eustachian tube dysfunction. For reasons which are unclear, the incidence of allergies is increasing in the United States. Obesity can also predispose a patient to Eustachian tube dysfunction because of excess fatty deposits around the passageway of the Eustachian tube.
. . .
Intranasal steroids act to reduce inflammation of the mucosal lining of the nose and may provide some benefit to patients with Eustachian tube dysfunction. In my experience, this helps about 50% of patients with Eustachian tube dysfunction secondary to allergies. A trial of 2 weeks of daily usage is recommended to see if the medication is helpful. Nasal steroids take this long to begin to work. The onset of their effects is gradual, so patients have to use it every day. One does not typically notice an immediate improvement after spraying it in their nose."
The CT should rule out major issues, but I'm not sure it's sufficient to check all tube functions.
If you can take them, a high dose oral steroid may be something to try just to see if you can get some relief that way. Might help point to the source of the trouble.
Otovent may seem a little weird, but I'd also try it for $20 if I had something like this going on.
https://www.amazon.com/Otovent-Glue-Ear-Treatment/dp/B01N7HMVXY
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4877436/
"With high-resolution images, the soft and bony anatomy of the Eustachian tube can be assessed in detail. CT and MRI are best suited to identifying features associated with obstructive or patulous Eustachian tube dysfunction, though true assessments of function have only been achieved with contrast enhanced radiographs and scintigraphy. A single modality has yet to provide a complete assessment. No test has entered routine clinical use, but further development and research is underway.
Significant information can be gained from imaging the Eustachian tube, and as faster acquisition techniques are developed, it is possible that dynamic imaging of tubal opening could play an important role in the assessment of patients with ET dysfunction."
https://emedicine.medscape.com/arti...ETD) can,not help eustachian tube dysfunction.
"Eustachian tube dysfunction (ETD) can be treated primarily with a combination of time, autoinsufflation (eg, an Otovent), and oral and nasal steroids (budesonide, mometasone, prednisone, methylprednisolone). The results of one study suggest that intranasal steroid sprays alone do not help eustachian tube dysfunction. [22]
Decongestants (eg, pseudoephedrine, oxymetazoline, phenylephrine) are also helpful, but not as useful for chronic eustachian tube dysfunction (ETD)."
https://med.stanford.edu/ohns/OHNS-...s/conditions/eustachian-tube-dysfunction.html
"Chronic blockage of the Eustachian tube is called Eustachian tube dysfunction. This can occur when the lining of the nose becomes irritated and inflamed, narrowing the Eustachian tube opening or its passageway. Illnesses like the common cold or influenza are often to blame. Pollution and cigarette smoke can also cause Eustachian tube dysfunction. In many areas of the country, nasal allergy (allergic rhinitis) is the major cause of Eustachian tube dysfunction. For reasons which are unclear, the incidence of allergies is increasing in the United States. Obesity can also predispose a patient to Eustachian tube dysfunction because of excess fatty deposits around the passageway of the Eustachian tube.
. . .
Intranasal steroids act to reduce inflammation of the mucosal lining of the nose and may provide some benefit to patients with Eustachian tube dysfunction. In my experience, this helps about 50% of patients with Eustachian tube dysfunction secondary to allergies. A trial of 2 weeks of daily usage is recommended to see if the medication is helpful. Nasal steroids take this long to begin to work. The onset of their effects is gradual, so patients have to use it every day. One does not typically notice an immediate improvement after spraying it in their nose."
interestingly I was on a steroid dose no too long ago for unrelated problem and that pretty much fixed my ear problems for the most part. I'll look into the other stuff you mentioned.
On a silly side note, I couldn't help but feel better about my speakers impedance chart after seeing this. What on earth happened to these?
Ok I think the speakers are done performance wise for some time. FWIW I settled on third order high and low pass for the mid to tweeter at 2500hz, and the lower mid to woofer xover are second order at 300hz. It's taken awhile to get used to the sound of them, but my mix translation is incredible. Small speakers make me feel like I'm guessing with the mid bass and low end, not these. Even the nuemann and genelec speakers I used to have didn't offer nearly the resolution in the lower ranges that these do. I spent the last two years or so being unhappy with mixes due to not getting what I want from the low mids and bass. I can't really "know my monitors" and mix to their issues if that makes sense, I simply mix to where it sounds good on what I'm using.
I'm not really hearing any resonance problems at all now even with ports unblocked so yeah must have been a room thing. I guess there's also just a lot of of music out there with fairly poor mixed mid bass and low end that was throwing me off.
Got some more PVC pipe to redo one port, then the baffles need a fresh coat of paint. Need to get some washers to put on the baffle bolts. Undecided on veneer but I'm liking the lighter wood to black baffle so I might just go with birch.
I have the speakers on the floor at the moment with some simple 2x4 stands I made, I'm wondering if elevating them to the previous height induced some issues related to the floor reflection. I'm debating just getting some cinder blocks and painting them vs. building fancy stands. My floor is a wood floating floor and that thing vibrates a lot.
Two of the mixes I knocked out were for regular clients and they gave me feedback stating the mixes sound better than anything I've done for them before and I would agree, even surprised myself.
I need to get an enamel marker and mark the amp knob positions so I don't lose my current driver balance. I ordered some extra tweeters just in case I blow some which I don't see as likely but hey.
I'm not really hearing any resonance problems at all now even with ports unblocked so yeah must have been a room thing. I guess there's also just a lot of of music out there with fairly poor mixed mid bass and low end that was throwing me off.
Got some more PVC pipe to redo one port, then the baffles need a fresh coat of paint. Need to get some washers to put on the baffle bolts. Undecided on veneer but I'm liking the lighter wood to black baffle so I might just go with birch.
I have the speakers on the floor at the moment with some simple 2x4 stands I made, I'm wondering if elevating them to the previous height induced some issues related to the floor reflection. I'm debating just getting some cinder blocks and painting them vs. building fancy stands. My floor is a wood floating floor and that thing vibrates a lot.
Two of the mixes I knocked out were for regular clients and they gave me feedback stating the mixes sound better than anything I've done for them before and I would agree, even surprised myself.
I need to get an enamel marker and mark the amp knob positions so I don't lose my current driver balance. I ordered some extra tweeters just in case I blow some which I don't see as likely but hey.
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I cannot imagine such things would happen unnoticed but I usually get similar results if there are (loud) noises or vibrations during impedance measurements. Or the woofer is damaged.
Like with oil paints, black permanent marker can sometimes have a purple tinge. In any case what I like about it is that it's easy to remove when I change something about the configuration.
https://www.sharpie.com/markers/per...24&initialCGID=permanent-markers&view=product
I have used silver-metallic permanent markers by Sharpie on black surfaces. Works well.
I have used silver-metallic permanent markers by Sharpie on black surfaces. Works well.
Forgive me for prying into your business, but your ear issues can be due to inflammation of the middle and inner ear. I have the same problem with my left ear and its due to inflammation and auto immune causes. The only thing which works for me is a course of oral steroids, which lasts a long time until it resurfaces. The longer you let this inflammation go, the more damage your hearing incurrs over time. This also comes with tinnitus for me if it's a bad flair up. Sometimes I have to get steroid injections around my ear if its severe, but for the most part oral prednisone does the trick. It does have side effects but if your hearing is important to you, its a risk worth taking.
Hope this helps you. I hear you considering the situation with health insurance and doctors in the US. This is an awful place to live if you have specific health problems outside of the typical maintenance diseases they make a ton of money on. Its so pathetic, but that's a whole different argument for another day.
Hi, try this in your room with your speakers if you haven't: set quite small stereo triangle (assuming typical living room), max 6ft between speakers. Then walk along center normal between speakers so that distance from you to speakers change, keeping distance to both the same preserving phantom center at the center. Then try to make very solid phantom center sound: play mono pink noise, same exact signal to both speakers. I'm assuming speakers are with tight enough tolerance to each other so that strong phantom center is possible in the first place.
So, focus on listening "size" and "clarity" of phantom center to hear a transition. Walking along the center normal, there should be a distance where perception of the phantom center seems to change quite suddenly, perhaps within one step. When you are further than this audible critical distance the phantom center sounds quite a big and hazy blob of sound somewhere between speakers, but closer than the audible critical distance the phantom center gets focus in a way, clarity, localizes more sharply into kind of small spot instead of hazy blob. It's also more enveloping sound at the close distance, room seems to disappear, while it's more flat 2D like sound in front of you when beyond the critical distance. If you don't get to hear the transition, try adjust toe-in of speakers, shrink the triangle, or something, I don't know if this always happens, not sure how good or bad speakers need to be to allow this.
Now, if you get to hear the transition in your setup as I suspect most would, you now know there is two presentations of stereo soundstage or image, that are quite different and the transition defines them both, gives two perspectives on your listening setup that are quite different. I suspect many if not most people listen far side of the audible critical distance, while some listen closer. Some records seem to work better on either distance, so you might have listening chair around the transition to be able to change perspective per recording. It's the close listening people at studio do with nearfield monitoring and reflection free zones 😉
Anyway, if you now consider there is two quite different presentations of stereo sound, and people might like either, or just have either without knowing or thinking about it any further, and they might be talking either or without thinking about it! Thus any conversation or text about stereo imaging or staging would be confusing unless it's clearly stated which side of the transition, the audible critical distance, one listens at so that people can relate! also, you as reader of the text should know how each of them sounds like, otherwise you cannot relate to the text and message is confusing as you write.
For example, if you listen beyond, you likely want as much early reflections as possible to make the sound "bigger" and more hazier in general, it's never going to sound focused so this is what you do to "improve" the sound, have direct radiating tweeters, no toe-in, listen other side of the room and have narrow baffle and so on. But, if you listen closer, then you'd likely want to suppress the early reflections, at least the ones that offend to achieve the close sound in the first place. Now sound bigness and greatness is not about early reflections but lack of, or controlling of them, like with wide baffles, waveguides and so on to extend the critical distance far enough into the room so that the close sound happens at main listening position!
Thus, some people like big front panels and some narrow ones and both speak truth, either one is right if related to either side of the audible critical distance! It's absolutely critical to know that there is this kind of audible critical distance and how it affects to perception of sound, how stuff sounds like and how it can be optimized further.
Have you tried to listen to it?
Guess I wasn't quite done with the filters. Went ahead and ditched EQ APO's filter stacking for other options, namely rePhase filter generation. Linear Phase filters seem to sound more coherent but the attack of sounds is not right. Using the Minimum Phase filters seems like you get the attack back but not as coherent in the mid range.
Make sure you are 110% certain that you have no timing or delay issues. It is possible that you are hearing a real difference between linear phase and minimum phase filtering. But it is also possible that you have a small unknown time delay somewhere, and the two filters are reacting differently to the small delay...