Closed Thread
Page 1 of 2 1 2 LastLast
Results 1 to 15 of 20

Reload Thread: RTA (Real Time Analyzer)

  1. #1
    Joseph7195's Avatar
    Joseph7195 is online now Can't Walk, I still F*ck



    Join Date
    May 2011
    Location
    Saltillo, Mississippi, United States
    Age
    34
    Posts
    1,219
    Post Thanks / Like
    Images
    10
    Mentioned
    9 Post(s)

    Icon32 RTA (Real Time Analyzer)

    I am going to be doing some major SQ tuning an was going to buy this:

    Dayton Audio OmniMic V2 Precision Audio Measurement System 390-792

    Anyone have any ideas on other RTA's that would be comparable to this, or anyone have any personal experience with multiple RTA's? Only one I have ever used is the Goldline RTA, and it was expensive.

    Just seems there might be some other companies I might be overlooking that could be more inexpensive and offer more for the price.

    Any help would be greatly appreciated!!



    Alpine 9833
    Boston Accoustics Front & Rear
    Cadence United Series Vegas 4 Channel
    Cadence S2W12-D2
    Cadence United Series Dakota Mono Amp
    Duralast 1,000 amp battery, X-Static 2,000 Amp Battery
    Rockford Foagate 1/0 wire, and interconnects
    Cadence shielded RCA wire
    Dynamat sound deadening, Fatmat sound deadening




  2. #2
    Joseph7195's Avatar
    Joseph7195 is online now Can't Walk, I still F*ck

    Threadstarter


    Join Date
    May 2011
    Location
    Saltillo, Mississippi, United States
    Age
    34
    Posts
    1,219
    Post Thanks / Like
    Images
    10
    Mentioned
    9 Post(s)

    Re: RTA (Real Time Analyzer)

    Ttt



    Alpine 9833
    Boston Accoustics Front & Rear
    Cadence United Series Vegas 4 Channel
    Cadence S2W12-D2
    Cadence United Series Dakota Mono Amp
    Duralast 1,000 amp battery, X-Static 2,000 Amp Battery
    Rockford Foagate 1/0 wire, and interconnects
    Cadence shielded RCA wire
    Dynamat sound deadening, Fatmat sound deadening

  3. #3
    keep_hope_alive's Avatar
    keep_hope_alive is offline Acoustics Engineer keep_hope_alive is a Supporting Member of the forum!



    Join Date
    May 2007
    Location
    Quad Cities, IL
    Posts
    5,978
    Post Thanks / Like
    Images
    28
    Mentioned
    159 Post(s)

    Re: RTA (Real Time Analyzer)

    Yea, I use TrueRTA and a Beringer ECM8000 with a few different USB mic preamps. Works well. Biggest issue is controlling noise in the laptop.

    We usually have to turn off various items, such as wifi and anything else not necessary for measurements. As such, we have dedicated laptops.



    have you been helped by me? i'd love to know. shoot me a PM.

    My 2014 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/608637-2014-accord-sport-sq-build-keep_hope_alive.html
    ***My YouTube Channel https://www.youtube.com/channel/UCkYUo2EShW9lgtrfXiDvLNQ/videos
    *My 2001 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html
    *2005 Scion tC Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516096-2005-scion-tc-sq-hertz-audison-pioneer-build-log.html

  4. #4
    slim2fattycake's Avatar
    slim2fattycake is offline rolling right along



    Join Date
    Jun 2008
    Location
    In the Stars
    Posts
    2,164
    Post Thanks / Like
    Mentioned
    7 Post(s)

    Re: RTA (Real Time Analyzer)

    SPL-Lab RTA pro.



    SPL-Lab REP

    Want an SPL meter for a lot less than the cost of a Termlab, but just as accurate and has more features and support? PM me.

  5. #5
    CHRIS 323's Avatar
    CHRIS 323 is offline CarAudio.com Elite



    Join Date
    Mar 2012
    Location
    Southern Cali
    Age
    28
    Posts
    232
    Post Thanks / Like
    Images
    1
    Mentioned
    0 Post(s)

    Re: RTA (Real Time Analyzer)

    audiocontrol RTA ill say if you have $1500



    ROCKFORD FOSGATE POWER SERIES & FI CAR AUDIO & AUDIOCONTROL & DC POWER & KINETIK

  6. #6
    kmanian's Avatar
    kmanian is offline CarAudio.com Veteran



    Join Date
    Jun 2005
    Location
    Grand Cayman
    Age
    43
    Posts
    8,557
    Post Thanks / Like
    Mentioned
    19 Post(s)

    Re: RTA (Real Time Analyzer)

    I have used the Audio Control, Linear X and Coustic, and all are easy to use. I personally have and use thr RTA33 now because it is stand alone, and functions well.



    Mine is bigger than yours!

  7. #7
    Joseph7195's Avatar
    Joseph7195 is online now Can't Walk, I still F*ck

    Threadstarter


    Join Date
    May 2011
    Location
    Saltillo, Mississippi, United States
    Age
    34
    Posts
    1,219
    Post Thanks / Like
    Images
    10
    Mentioned
    9 Post(s)

    Re: RTA (Real Time Analyzer)

    Thanks Fella's, this is the exact type of info I need! If anyone else have any other ideas, let me know!



    Alpine 9833
    Boston Accoustics Front & Rear
    Cadence United Series Vegas 4 Channel
    Cadence S2W12-D2
    Cadence United Series Dakota Mono Amp
    Duralast 1,000 amp battery, X-Static 2,000 Amp Battery
    Rockford Foagate 1/0 wire, and interconnects
    Cadence shielded RCA wire
    Dynamat sound deadening, Fatmat sound deadening

  8. #8
    Bettr n' Revrse's Avatar
    Bettr n' Revrse is offline I do what I want



    Join Date
    Dec 2010
    Location
    Grand Junction, CO
    Posts
    16,839
    Post Thanks / Like
    Mentioned
    72 Post(s)

    Re: RTA (Real Time Analyzer)

    Your gunna get that serious into SQ huh?




    Western Rep.

    99 Honda CRV: (Always Changing) ___________ 79 F-150: Show Truck ________________
    -Head Unit: Eclipse CD7100________________ -Head Unit: Eclipse CD7100
    -Sub Stage: Sundown SD-2 8's sealed________ -Sub Stage: Looking
    -Mids/Highs: Deciding_____________________ -Mids/Highs: Scan Speak & Blaupunkt
    -Sub Amp: MMATS Hifi 6 channel____________ -Sub Amp: American Warrior Set (Zed Built)
    -Mid Amp: ^^^ 5/6 bridged at 1 ohm_________ -Mid Amp: ^^^

  9. #9
    Joseph7195's Avatar
    Joseph7195 is online now Can't Walk, I still F*ck

    Threadstarter


    Join Date
    May 2011
    Location
    Saltillo, Mississippi, United States
    Age
    34
    Posts
    1,219
    Post Thanks / Like
    Images
    10
    Mentioned
    9 Post(s)

    Re: RTA (Real Time Analyzer)

    Quote Originally Posted by Bettr n' Revrse View Post
    Your gunna get that serious into SQ huh?

    Yep, I am gonna get back into the technical side. I am kinda excited, but still a little daunted about how much technology has become more and more complicated over the years. Back in the day you had one screen and a bunch of lights, nowadays the software has more variables and graphs than I have ever seen. I hope I can make use of the information, instead of it going over my head and being useless. But I have gotta get on board the technology wave or get left behind!



    Alpine 9833
    Boston Accoustics Front & Rear
    Cadence United Series Vegas 4 Channel
    Cadence S2W12-D2
    Cadence United Series Dakota Mono Amp
    Duralast 1,000 amp battery, X-Static 2,000 Amp Battery
    Rockford Foagate 1/0 wire, and interconnects
    Cadence shielded RCA wire
    Dynamat sound deadening, Fatmat sound deadening

  10. #10
    Bettr n' Revrse's Avatar
    Bettr n' Revrse is offline I do what I want



    Join Date
    Dec 2010
    Location
    Grand Junction, CO
    Posts
    16,839
    Post Thanks / Like
    Mentioned
    72 Post(s)

    Re: RTA (Real Time Analyzer)

    Id like to have one as well but will worry about what the next setup will be first lol




    Western Rep.

    99 Honda CRV: (Always Changing) ___________ 79 F-150: Show Truck ________________
    -Head Unit: Eclipse CD7100________________ -Head Unit: Eclipse CD7100
    -Sub Stage: Sundown SD-2 8's sealed________ -Sub Stage: Looking
    -Mids/Highs: Deciding_____________________ -Mids/Highs: Scan Speak & Blaupunkt
    -Sub Amp: MMATS Hifi 6 channel____________ -Sub Amp: American Warrior Set (Zed Built)
    -Mid Amp: ^^^ 5/6 bridged at 1 ohm_________ -Mid Amp: ^^^

  11. #11
    Joseph7195's Avatar
    Joseph7195 is online now Can't Walk, I still F*ck

    Threadstarter


    Join Date
    May 2011
    Location
    Saltillo, Mississippi, United States
    Age
    34
    Posts
    1,219
    Post Thanks / Like
    Images
    10
    Mentioned
    9 Post(s)

    Re: RTA (Real Time Analyzer)

    Quote Originally Posted by Bettr n' Revrse View Post
    Id like to have one as well but will worry about what the next setup will be first lol
    I have a feeling with the horrible acoustics of my truck, I am gonna end up changing things a million times! But on the brighter side, I am gonna put up some advertisements to check SPL measurements locally and see if I can manage to make some of the money back for the software and hardware



    Alpine 9833
    Boston Accoustics Front & Rear
    Cadence United Series Vegas 4 Channel
    Cadence S2W12-D2
    Cadence United Series Dakota Mono Amp
    Duralast 1,000 amp battery, X-Static 2,000 Amp Battery
    Rockford Foagate 1/0 wire, and interconnects
    Cadence shielded RCA wire
    Dynamat sound deadening, Fatmat sound deadening

  12. #12
    keep_hope_alive's Avatar
    keep_hope_alive is offline Acoustics Engineer keep_hope_alive is a Supporting Member of the forum!



    Join Date
    May 2007
    Location
    Quad Cities, IL
    Posts
    5,978
    Post Thanks / Like
    Images
    28
    Mentioned
    159 Post(s)

    Re: RTA (Real Time Analyzer)

    i use an RTA on a regular basis, not just for my car but for work.

    i just sold my second Behringer 8024 - was a 1/3 oct RTA and EQ. Sold it for $200, but you can find them for under $100. The replacement model is the DEQ2496. these are stand-alone and could be inserted in the signal path.

    I also have an older Casella CEL-490 at work I can use (was $7k new and we got it for $3k used/calibrated). It's a Type-1 measurement instrument. Casella has a host of hand held 1/3oct SLM's. It's eerily accurate.

    The benefit of the laptop approach is the ability to easily save and compare. I would measure each driver separately, from each seat, then measure each combination. all in under 20 minutes. then i can go back and look at the results and/or adjust eq/crossover while monitoring real-time. Also, with a 2 channel USB Mic Pre (I use the SoundDevices USBpre) you can have a mic at driver and passenger at the same time.

    Example, this was a tuning effort last year, mic at each headrest:

    without sub




    with sub


    maybe my constant access to several different RTA's over the years has made me so used to using them, I don't think twice.



    have you been helped by me? i'd love to know. shoot me a PM.

    My 2014 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/608637-2014-accord-sport-sq-build-keep_hope_alive.html
    ***My YouTube Channel https://www.youtube.com/channel/UCkYUo2EShW9lgtrfXiDvLNQ/videos
    *My 2001 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html
    *2005 Scion tC Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516096-2005-scion-tc-sq-hertz-audison-pioneer-build-log.html

  13. #13
    Bettr n' Revrse's Avatar
    Bettr n' Revrse is offline I do what I want



    Join Date
    Dec 2010
    Location
    Grand Junction, CO
    Posts
    16,839
    Post Thanks / Like
    Mentioned
    72 Post(s)

    Re: RTA (Real Time Analyzer)

    Quote Originally Posted by Joseph7195 View Post
    I have a feeling with the horrible acoustics of my truck, I am gonna end up changing things a million times! But on the brighter side, I am gonna put up some advertisements to check SPL measurements locally and see if I can manage to make some of the money back for the software and hardware
    Great Idea! Maybe I will get one and do the same cuz no one in town has a meter... Keep me posted on what you find... Im doing a small scale budget SQ build in my truck right now as well...




    Western Rep.

    99 Honda CRV: (Always Changing) ___________ 79 F-150: Show Truck ________________
    -Head Unit: Eclipse CD7100________________ -Head Unit: Eclipse CD7100
    -Sub Stage: Sundown SD-2 8's sealed________ -Sub Stage: Looking
    -Mids/Highs: Deciding_____________________ -Mids/Highs: Scan Speak & Blaupunkt
    -Sub Amp: MMATS Hifi 6 channel____________ -Sub Amp: American Warrior Set (Zed Built)
    -Mid Amp: ^^^ 5/6 bridged at 1 ohm_________ -Mid Amp: ^^^

  14. #14
    Joseph7195's Avatar
    Joseph7195 is online now Can't Walk, I still F*ck

    Threadstarter


    Join Date
    May 2011
    Location
    Saltillo, Mississippi, United States
    Age
    34
    Posts
    1,219
    Post Thanks / Like
    Images
    10
    Mentioned
    9 Post(s)

    Re: RTA (Real Time Analyzer)

    Quote Originally Posted by keep_hope_alive View Post
    i use an RTA on a regular basis, not just for my car but for work.

    i just sold my second Behringer 8024 - was a 1/3 oct RTA and EQ. Sold it for $200, but you can find them for under $100. The replacement model is the DEQ2496. these are stand-alone and could be inserted in the signal path.

    I also have an older Casella CEL-490 at work I can use (was $7k new and we got it for $3k used/calibrated). It's a Type-1 measurement instrument. Casella has a host of hand held 1/3oct SLM's. It's eerily accurate.

    The benefit of the laptop approach is the ability to easily save and compare. I would measure each driver separately, from each seat, then measure each combination. all in under 20 minutes. then i can go back and look at the results and/or adjust eq/crossover while monitoring real-time. Also, with a 2 channel USB Mic Pre (I use the SoundDevices USBpre) you can have a mic at driver and passenger at the same time.

    Example, this was a tuning effort last year, mic at each headrest:

    without sub




    with sub


    maybe my constant access to several different RTA's over the years has made me so used to using them, I don't think twice.

    This is the reason I am thinking of going with the computer software, mainly the easy comparisons and ability to save and compare. The second picture down, does the separate peaks between the speakers around the 1100 hz to 1300hz area denote signal reproduction differences, or time arrival differences, and if it is time arrival, do I superimpose the green speaker to the left to the purple, or purple to the right to the green, and then would the delay be applied to the left speaker or right to get the right response movement?

    This is gonna be fun, but I am way out of my comfort zone with things like this^^^. I am hoping I am just making it harder than it will actually be.



    Alpine 9833
    Boston Accoustics Front & Rear
    Cadence United Series Vegas 4 Channel
    Cadence S2W12-D2
    Cadence United Series Dakota Mono Amp
    Duralast 1,000 amp battery, X-Static 2,000 Amp Battery
    Rockford Foagate 1/0 wire, and interconnects
    Cadence shielded RCA wire
    Dynamat sound deadening, Fatmat sound deadening

  15. #15
    keep_hope_alive's Avatar
    keep_hope_alive is offline Acoustics Engineer keep_hope_alive is a Supporting Member of the forum!



    Join Date
    May 2007
    Location
    Quad Cities, IL
    Posts
    5,978
    Post Thanks / Like
    Images
    28
    Mentioned
    159 Post(s)

    Re: RTA (Real Time Analyzer)

    Arrival times don't shift frequency, just affect phase interference - I.e. amplitude. Peaks could be reflections. Those two peaks are likely constructive interference. If they are within 3dB you won't notice. We barely perceive a 2dB difference of single tones. My goal is to be within 5dB peak-to-peak in the vocal range. That results in a pretty natural reproduction.

    Also, test various mic positions.

    This is why measuring one diver at a time and saving each, has benefits. I still have the files for all my RTA tests. I can review and compare any combination, as many at a time as I want, and I can export to excel. I like TrueAudio, for $100 it's a good deal with 20 memory spots, and you can combine or create annother file for 20 more. Add a $50 measurement mic and you're only missing a preamp with 48V phantom power. Several to choose from.

    Note the laptop should run on battery during tests, chargers generate noise.

    USBpre is around $650 but it's **** good and good down to 10Hz. For work I actually care to measure as low as 5 Hz. But that low we use an Earthworks m50 mic. Below that we use a hydrophone which can measure below 1Hz.



    have you been helped by me? i'd love to know. shoot me a PM.

    My 2014 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/608637-2014-accord-sport-sq-build-keep_hope_alive.html
    ***My YouTube Channel https://www.youtube.com/channel/UCkYUo2EShW9lgtrfXiDvLNQ/videos
    *My 2001 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html
    *2005 Scion tC Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516096-2005-scion-tc-sq-hertz-audison-pioneer-build-log.html

Closed Thread
Page 1 of 2 1 2 LastLast

Similar Threads

  1. Replies: 14
    Last Post: 05-06-2007, 08:18 PM
  2. AC Real Time Analyzer SA-3052
    By nVRuckus in forum Car Audio Competition, Shows and Events
    Replies: 8
    Last Post: 10-08-2006, 12:13 AM
  3. real - time analyzer
    By Bigfella in forum General Discussion
    Replies: 3
    Last Post: 04-08-2006, 10:28 PM
  4. ADC SA-1 Sound Shaper Real-Time Frequency Spectrum Analyzer
    By volonau in forum General Discussion
    Replies: 6
    Last Post: 11-29-2005, 04:00 PM

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may post attachments
  • You may edit your posts
1e2 Forum