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  »  New  Do not pursue full-range without being ready...  ...observing the better and worst in upper bass......  Audio For Dummies ™  Forum     8  55426  01-02-2005
  »  New  Do not over-damped your rooms and particularly…...  Do not over-damped your rooms and particularly…....  Audio For Dummies ™  Forum     0  17445  10-09-2005
  »  New  "Zaratustra II" to drive Macondo’s bass? ..  Your LF arrays are sealed, right?...  Audio Discussions  Forum     3  26234  03-16-2007
  »  New  First Order on Bass channels: Designed for Sound..  Bass from a vented box......  Audio Discussions  Forum     16  90997  07-20-2007
  »  New  Macondo’s lowest channel...  The ULF amp Itch....  Horn-Loaded Speakers Forum     146  930324  09-15-2010
05-18-2008 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,514
Joined on 05-28-2004

Post #: 1
Post ID: 7413
Reply to: 7413
The meaning of lowest octave.

Last month of two I keep thinking about the super-meaning of lowest octave in sound reproduction.  It is not about the importance of the lowest octave for sake of audio reproduction, there is a lot about it in other pleases of my site and anywhere else. I rather think about meaning of lowest bass and our ability to assess, to understand and to structure the lowest bass reproduction in the manner that would the most benefit the core of performing intentions.

In order to do targeted listing over the years I have developed a method when I put my hand on the body of a musical instrument - cello of grand piano – and while listening the play I try mentally low-pass the auditable component of perception. It is very difficult but with certain practice it is possible. The subject of my attention is the reaction may inner me lowers octave of sound reproduction. (There is catch in there – to do the same with physical contact with an instrument is also possible and illustrative but I have my own motivation to direct-collect mechanical vibration off the body of vibration transducers.)

I also practice to low-pass my Macondo at 35Hz with second order and increasing volume try to see what my playback dose in the lowest octave and what meaning the extracted lovers octave have in context of given performing or composing intention.

Sure, no one method of bass reproduction besides infinite baffles can do justness in here, the 16bit playback is also out of picture - ironically FM is the best souses for me for prober bass.  The large room with longer reverberation time is very good help but it requires multiplying power very aggressively and with raise power other factors become too influential (where are our 112dB sensitive direct radiator woofers?)

 Anyhow, it could be better or worse lowest octave but important is not quietly of it but adequate this lowest octave work in context of what you expect from music. It is not about comparing of low-passed perception s of live sound with perception of low-passed playback but rather about our own learning about our own needs and preferences for lowest octave’ structuring and utilization.

Rgs, Romy the Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
11-11-2008 Post does not mapped to Knowledge Tree
Vasyachkin
Brooklyn, NY, USA
Posts 47
Joined on 10-16-2008

Post #: 2
Post ID: 8824
Reply to: 7413
Vibrational bass
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i am a fan of this.

who said that music is supposed to be ONLY about sound ?

until recording was invented musical performance was never ONLY about sound. because there was also something to SEE for example.

although i can still hear 25 hz i have to say that below 35 hz or so it is becoming already more about vibration for me than sound.

without the twenties there is just no sense of "power" to the music.

my system is equalized for such a response that anytime there is content in the twenties i will feel this power even with overall level being only moderate. the downside is it is quite fatigueing - i constantly find myself switching the subwoofer off to let my ears rest.

but certainly in my view if a system can't hit 25 hz with a solid SPL then it is giving something up in the presentation.

i don't believe that sub-bass is only for movies.

certainly if you hold a guitar and pluck a string you can feel the vibration at the fundamental frequency even if what you may be hearing are actually harmonics for the most part.

with my subwoofer you will also feel this vibration during playback of a recording.

i have no interest in bass shakers though. i want to feel the bass with my entire body not just my ass.

unfortunately i don't yet know how to get bass this low without creating a soup of standing waves in the listening room. in fact i would say this is the number one issue in audio. it seriously bothers me.


visit my site:

http://www.diy-av.net
Page 1 of 1 (2 items) Select Pages: 
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  Do not pursue full-range without being ready...  ...observing the better and worst in upper bass......  Audio For Dummies ™  Forum     8  55426  01-02-2005
  »  New  Do not over-damped your rooms and particularly…...  Do not over-damped your rooms and particularly…....  Audio For Dummies ™  Forum     0  17445  10-09-2005
  »  New  "Zaratustra II" to drive Macondo’s bass? ..  Your LF arrays are sealed, right?...  Audio Discussions  Forum     3  26234  03-16-2007
  »  New  First Order on Bass channels: Designed for Sound..  Bass from a vented box......  Audio Discussions  Forum     16  90997  07-20-2007
  »  New  Macondo’s lowest channel...  The ULF amp Itch....  Horn-Loaded Speakers Forum     146  930324  09-15-2010
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