sound-geek Posted January 22, 2012 Share Posted January 22, 2012 Hello All, I guess I maybe already know the answer to the question "experience" but I am looking for a starting point. What is the best way to begin to recognise feedback/ problem frequencies when sound checking/ setting up a PA "That feedback is 1k..etc" All and Any advice welcome Thanks, Link to comment Share on other sites More sharing options...
AndyJones Posted January 22, 2012 Share Posted January 22, 2012 Presumably the Best way is to take an EQ and a mic and have a play? Link to comment Share on other sites More sharing options...
sound-geek Posted January 22, 2012 Author Share Posted January 22, 2012 Ok, Are there certain problem frequencies or things to look out for? (EG 63k is always feeding back in monitors) or (1.5k always feeds back in larger rooms)? ... I know thats a little open ended but there must be reoccurring problem frequencies Thanks, Link to comment Share on other sites More sharing options...
mervaka Posted January 22, 2012 Share Posted January 22, 2012 I never found it that helpful as I didn't have the patience, but it may help you: http://sft.sourceforge.net/ Link to comment Share on other sites More sharing options...
Bobbsy Posted January 22, 2012 Share Posted January 22, 2012 "Experience" is the real answer...but a way to speed things up is to teach yourself to recognise frequencies. Have a look at this HARMAN "HOW TO LISTEN" training programme--it'll help with your skills at recognising different frequencies. Link to comment Share on other sites More sharing options...
S&L Posted January 23, 2012 Share Posted January 23, 2012 of course you can cheat and apply a graphic that highlights the feedback frequencies. I use this for monitors for a fast set up and as a consequence you get to know the frequencies that are feeding back. a behringer FBQ1502 works for me - picked up because I needed something for a show and though it's only 15 bands, that is acceptable for the quality I am working with in bars and pubs, use one enough times and you get a feel for where a certain type of feedback is going to be found on the frequency line. I also set up the monitors and mics I am going to be using for a show occasionally in my rehearsal unit, turn it up and let the graphic highlight the frequencies. I have a certain set of cheap monitors that if they go out to a gig with me, I know they will react to SM58's at a certain couple of frequencies more than others so I often notch those frequencies down as a mental note before the gear leaves the unit and then lift and lower those frequencies to check - sometime in a particular room on a particular stage they are fine. it's always worth playing with the mics and monitors you are using not only to see what is causing feedback but also which mics work well with which monitors in what position - it can be difficult if a performer brings their own mics with them (as happens to me a lot) but knowing what the mic is in advance can help, you can at then look up what the reception pattern for the mic is and plan to position monitors accordingly. Link to comment Share on other sites More sharing options...
TimmyP1955 Posted January 23, 2012 Share Posted January 23, 2012 I've always been terrible at calling feedback frequencies. As such, I use StudioSixDigital's FFT app on my iDevice to call them for me - which it does with sufficient accuracy that one use digital paramatric EQ with no hunting. Link to comment Share on other sites More sharing options...
Doug Siddons Posted January 23, 2012 Share Posted January 23, 2012 I never found it that helpful as I didn't have the patience, but it may help you: http://sft.sourceforge.net/ In my humble opinion this is the best thing to get you started Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.