From: johnwilliamson@btinternet.com   
      
   On 02/09/2025 06:22, Jimmy Logan wrote:   
   > On 2025-09-01, John Williamson  wrote:   
   >> On 01/09/2025 18:12, Jimmy Logan wrote:   
   >>> Hi, I think I have a similar "problem", trying to trace down some   
   >>> low freq noise and was also looking at Zoom F3,   
   >>> but I'd also need a microphone and don't know what to choose.. ,   
   >>> so I did not buy it, but would be very interested   
   >>> if someone can recommend a setup which is more suitable   
   >>> for such a task - recording low freq noise - like 20Hz - 150Hz -   
   >>> than a phone/headset mic :)   
   >>> I tried to record / listen to rule out tinnitus and/or me going crazy :)   
   >>> but did not hear it in the recording, just background noise,   
   >>> so its either the phone is not good for it, or its "just" a phantom   
   >>> sound.   
   >>>   
   >> I have a Zoom H2 which gave a decent rendition of the 64 foot pipes on   
   >> the Grande Orgue at Rouen cathedral using its internal microphones.   
   >>   
   >> My problem wasn't with the recording, it was with finding a speaker that   
   >> could reproduce it. That may also be your problem, though phones do have   
   >> some 'orribke filtering when recording audio, and the analogue parts are   
   >> heavily optimised for understandable speech. Almost as bad as what they   
   >> do to videos and images.   
   >   
   > Thanks for the idea, I'll double check the headphone specs; I   
   > thought speakers - as they are designed to play bass - should be more   
   > capable of playing LF sound than mics recording it. I've just started to   
   > learn more about sound / in depth, 2 weeks ago I had no idea about what   
   > is a standing wave / antinode and these stuff, for example :)   
   >   
   To give an idea of how limited most domestic equipment is when   
   reproducing bass, listen to a CD of "Diamonds on the soles of her shoes"   
   by Paul Simon. With decent bass, you can feel the voices in the a   
   capella section in your chest.   
      
   Microphones are often more linear and go lower than speakers, which   
   suffer from the problem of having to move very large amounts of air for   
   bass as against higher frequencies. I had 100 Watt main speakers and a   
   600 Watt sub in my mixing room when I was mixing CDs for sale. I miss   
   that system, but the neightbours don't.   
      
   --   
   Tciao for Now!   
      
   John.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)