duct_tape123 Posted October 29, 2009 Report Share Posted October 29, 2009 I was poking around on the web and found a program called TrueRTA. They offer a free version that only allows 1 octave steps, but I figured I'd give it a try. Now my question is, how accurate is this program? My graph came out alright(I guess, never played with this type of program before) for absolutely no EQ'ing. I just played with the settings on my headunit until I liked the sound then I ran the program. Here is the graph, tell me what you think. My system consists of a set of Power 6.5 components in the front doors, power 4x6 in the back doors, a pair of P1 10s down firing under the back seat, a Power1000, and a Pioneer 7000BT. The truck is a 2004 ext cab Silverado. EDIT: The microphone I was using was a piece of crap, so I don't how much that affects the graph. Link to comment Share on other sites More sharing options...
fritosaregood Posted October 29, 2009 Report Share Posted October 29, 2009 So you had a microphone on your computer record it all? if so i wouldnt say its super right, maybe if it used a termlab type sensor seller feedback: http://www.stevemeadedesigns.com/board/ind...showtopic=61719 http://www.stevemeadedesigns.com/board/ind...showtopic=68281 build log: http://www.stevemeadedesigns.com/board/index.php?showtopic=44800 Gf's build: http://www.stevemeadedesigns.com/board/topic/54346-kickergirls-camaro-new-box-pg-5/#entry753970 Link to comment Share on other sites More sharing options...
duct_tape123 Posted October 29, 2009 Author Report Share Posted October 29, 2009 It was a labtec external microphone. I got it for free from newegg a while ago, so I don't know how good it is. Link to comment Share on other sites More sharing options...
Neel Posted October 30, 2009 Report Share Posted October 30, 2009 You are going to want the get a better microphone..... here is a tutorial on Diyma that will help you... TrueRTA is very cool! http://www.diymobileaudio.com/forum/diyma-...a-100-dlls.html Too Much Stuff to list . Link to comment Share on other sites More sharing options...
audiofanaticz Posted October 30, 2009 Report Share Posted October 30, 2009 True RTA is only as accurate as the mircrophone your using. It will never judge your SPL like a termlab because it is measuring audible sound, not pressure like the termlab. To give you an idea, how not accurate it is look at a Audio Control Meter. Ive messed with True RTA years ago just on my house stereo, and it said it was 144db :01nocomment8so: Not to mention that you can adjust its sensitivity. However it has a cool feature with built in tones you can play. Link to comment Share on other sites More sharing options...
qu1cks1lver56 Posted October 30, 2009 Report Share Posted October 30, 2009 So you had a microphone on your computer record it all?if so i wouldnt say its super right, maybe if it used a termlab type sensor i dont know if a termlab type sensor would work for anything other than bass. you need a calibrated RTA mic for accurate RTA readings First Gen Xterra: Always changing DNX 690HD RF 360.3RF T3002RF T4004RF T10001bdSilver Flute 6.5"s Tang Band 1" TweetersSundown X18 in 7cubes net tuned to 32hz Trust me .25 Blows your Load. Link to comment Share on other sites More sharing options...
duct_tape123 Posted October 30, 2009 Author Report Share Posted October 30, 2009 Would it be close enough for the RTA? I didn't plan on using it for the SPL feature. Any recommendations on a good cheap microphone? Also, how does the graph look for no eq'ing? Link to comment Share on other sites More sharing options...
Neel Posted October 30, 2009 Report Share Posted October 30, 2009 good cheap microphone listed on thread i posted above, Get the 1/3 octave version of the program and get a good microphone and then it will be close to being an RTA. Too Much Stuff to list . Link to comment Share on other sites More sharing options...
Bigg Boy Posted October 30, 2009 Report Share Posted October 30, 2009 I have the 1/24th octave, worth every penny, just make sure you calibrate it correctly. I use it daily in the car audio world, and pro audio world Dodge Magnum with custom 300c front end, laid out on air bags *4) 12" Cadence Daytona walled *1) AudioQue 20k *270a DC Power Alt (Dual coming soon) Link to comment Share on other sites More sharing options...
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