Martin H

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Martin H last won the day on August 15

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  1. @Felipe Carvalho Yes, sounds right. And it's interesting if you feel a difference in the cricothyroid visor. It would be great to see an MRI study in regards to the "tilt". They also mention this in the study I cited earlier: "Another potentially important finding is that the laryngeal tilt mechanism is independent of pitch production and can be related to a variation of density or “weightiness” of a sung note. This is a line of inquiry that warrants further investigation, such as studies of women, across various pitches, and from methods such as MRI or EMG." https://www.jvoice.org/article/S0892-1997(18)30040-7/abstract
  2. @Felipe Carvalho Yes, when changing pitch. Ex a glissando from low to high or reverse. Both with sound and silently. The cricothyroid visor is mainly related to pitch.
  3. @Felipe Carvalho I don't notice any difference in the cricothyroid space but I do feel a slight movement of the whole larynx (which again, is in accordance with Fink).
  4. According to their study: https://www.jvoice.org/article/S0892-1997(18)30040-7/abstract Reduced "density" results in les overall narrowing of the supraglottic structures, lower sound pressure levels (SPL) and a lower Qx (contact quotient). Also they conclude that curbing and RD Edge and RD Overdrive are different: "Comparison of Curbing with Overdrive and Edge sung with a reduced density showed that laryngeal gestures as well as MDVP and LTAS measurements differ" (p.12) Although I don't agree with their interpretations of the laryngoscopic data, that RD is a result of thyroid cartilage "tilt". Just like the "tilt "in Estill is also questionable. The data is more in accordance with the degree of narrowing of the thyrohyoid space described by Fink.
  5. Of course. Voice science is evolving just like most other sciences.
  6. You can increase the energy in the 3000 Hz area by narrowing the epilarynx alone. But you'll get even more energy in that region when the formants cluster which requires a small resonator "within" the vocal tract. The important point is the narrow inlet (rim of epiglottis) to the lower pharynx which is an anterior-posterior movement and not the false folds.
  7. Yes it's mostly speculation. "For optimum resonance, this resonator must be about one-sixth as long as the entire vocal tract, and also have about one-sixth of the cross-sectional area of the vocal tract:" http://www.ncvs.org/ncvs/tutorials/voiceprod/tutorial/singer.html In regards to the "tug of war". When we lower the larynx it naturally widens the airway and when it rises it narrows the airway. So you have two opposing movements you have to balance to achieve the one-sixth ratio - and it's definitely something you DO in your throat.
  8. Maybe you are just narrowing the epilarynx more and not overdoing the tongue root? In my opinion there will always be some tongue root tension when the epilarynx narrows because we need to stabilize the hyoidbone.
  9. I believe it depends on how we define "ring". If we consider it to be the same as the "singers formant" then it would also require a cluster of formants 3,4 and 5. This can be achieved by narrowing the epilarynx and slightly lowering the larynx at the same time. Which can be quite difficult because it creates a kind of "tug of war".
  10. @Robert Lunte I believe you are already training and teaching this stuff. Tongue root tension usually creates the "knödel" or "kermit the frog" sound.
  11. @MDEW The aryepiglottic muscle seen in your picture can't really create the narrowing of the epilarynx simply because it's too weak and sometimes it's even absent.
  12. @Felipe Carvalho I just reviewed the video by Obert and the book by Fink. And you are right that what Fink talks about happens a bit lower. He calls it the "median thyrohyoid fold" (also mentioned in the paper MDEW posted). In the video it actually sounds very close to "knödel" when it's markedly - so it makes sense it's tongue root tension. So you have the tongue root tension and epilaryngeal narrowing or both at the same time. And if you do it extremely you'll probably end up doing a convincing Louis Armstrong or Christina Aguilera "growl".
  13. Hi Felipe, I have only read the book i mentioned. So I can't comment on his other work. Yes, the "bulging" happens when the thyroid meets the hyoid. So when the thyrohyoid muscle contracts it creates this "bulging". A squeezing happens. https://hsl.osu.edu/desk/images/larynx-plastic-model So in my opinion, twang is this movement caused by the thyrohyoid muscle that contracts and narrows this space. (actually you can feel it yourself when you "quack") In my opinion it makes sense......
  14. Hi Felipe, I can recommend you look into "Laryngeal Biomechanics" by B. Raymond Fink. He argues that the larynx works as a folding mechanism (he calls it "plication" - plica is latin for fold) and not a sphincter mechanism. Firstly because there are no sphincter muscles in the larynx and secondly that the closing (twang or narrowing) of the airways is a result of "bulging" or "folding" of the structures. This was published in 1979 and has gone a bit under the "radar". I mentioned this at an Estill course about 7 years ago and also on this forum. In regards to the discussion of the tongue groove. This is done by the genioglossus. And the effect is a fixation of the hyodbone which stabilizes it and therefore other intrinsic muscles can close of or narrow the airway. The isolated "bulging" of the root of the tongue seen in the presentation is most likely a "folding" of lymphatic (Lingual Tonsils) and adipose tissue just behind the tongue according to Fink. https://en.wikipedia.org/wiki/Lingual_tonsils#/media/File:Slide7ttt.JPG