Click Repair *Real Time* and Crackles

Discussion in 'Audio Hardware' started by ThinWhiteDuke, Aug 11, 2019.

  1. ThinWhiteDuke

    ThinWhiteDuke Well-Known Member Thread Starter

    Location:
    New Zealand
    I've been running Click Repair RT (CR RT) for some time now and absolutely love it (mac version with a Behringer UCA 202).

    However I noticed the other day, after installing a new TT, that the number of crackles, whilst listening to my favourite CSNY record, is irritatingly high.

    After some investigation I narrowed it down to the version of CR RT that I've been using.

    I downloaded two versions both 1.3.2 and 1.4.3. and purely co-incidentally started using the later version by accident (having forgotten which version I've been using due to a gap in my listening regime).

    Whilst I wouldn't normally assume the software version would matter (other than the later version being better, removing bugs and performing better) I'm quite certain of the root cause of the issue (I spent some time playing with humidity meters and cleaning records and grounding cables and swapping head shells etc. looking to isolate the crackles having assumed static was the issue - my new cartridge reveals more high frequencies hence I now notice stuff I was missing earlier including unfortunately hiss and crackles noise).

    It appears that the something in version 1.4.3. is corrupting the audio when removing heavy concentrations of clicks, which the earlier version does not. No amount of playing with the settings in the later version fixed the problem.

    Ideally I'd like to use the latest version under the assumption I'll get the best experience but so far that's not the case.

    (I notice that the later version has two different modes of click repair 'simple' and 'wave' but neither mode makes any difference. I also suspect that the earlier version isn't removing some of the clicks hence I don't notice the damaged audio because it's not being activated).

    Any one else notice this behaviour and if so could advise what the cause is and if I'm likely doing anything wrong?
     
  2. The Pinhead

    The Pinhead SLEAZY SOUTHAMERICAN CAVEMAN

    Has this program got any kind of threshold adjustment ? If so, try lowering it till the crackles are gone, even at the expense of letting some clicks and pops through. If you think the program makes the noises disappear at no cost for the audio, think of this : ¨there's no free lunch¨:targettiphat:
     
    Uglyversal and The FRiNgE like this.
  3. Thomas_A

    Thomas_A Forum Resident

    Location:
    Uppsala, Sweden
    I can check my version number when back from work but I think it is the latest version. Have options with simple and wave. I don’t have any problems running it. There is also a separate thread about the RT clickrepair where som issues are discussed. Java version? Perhaps there is something in that thread.
     
    Strat-Mangler likes this.
  4. Thomas_A

    Thomas_A Forum Resident

    Location:
    Uppsala, Sweden
    The version I have is 1.4.3 and it works fine.
     
  5. Strat-Mangler

    Strat-Mangler Forum Resident

    Location:
    Toronto
    Same here.
     
  6. ThinWhiteDuke

    ThinWhiteDuke Well-Known Member Thread Starter

    Location:
    New Zealand
    @Strat-Mangler @Thomas_A - makes me wonder what I'm doing wrong then as it's very noticeable and easy to reproduce on or off.

    I have a suspicion the db level is too high but adjusting it in RT CR doesn't seem to do much.
     
  7. Uglyversal

    Uglyversal Forum Resident

    Location:
    Sydney
    As the pinhead mentioned, there isn't such thing as a free lunch, you are deleting pops and crackle together with a good part of the music, the more crackles you delete, the more music you loose.

    If the noise is so bad in your set up you should seriously consider using CD's which on the second hand market are a lot cheaper than records. They will sound much better than any record/music you put through such assassination process. Also, if you are getting so much noise, the quality of the sound couldn't be all that good to start with. Unless you completely review how you listen to music you will remain in a lose or lose situation.
     
  8. electrode10101

    electrode10101 Forum Resident

    Location:
    Northern Virginia
    I've had issues on occasion with CR creating noise bursts with some files. It seems to occur with 32.bit float files from Cool Edit. Most times, rerunning CR clears the issue.
     
  9. BrilliantBob

    BrilliantBob Select, process, CTRL+c, CTRL+z, ALT+v

    Location:
    Romania
    Mistracking \/ dirty records \/ dirty stylus boost the number of clicks and pops.
     
  10. ThinWhiteDuke

    ThinWhiteDuke Well-Known Member Thread Starter

    Location:
    New Zealand
    Thanks for the suggestion but that doesn't explain why my issue goes away with a simple change of software version.
     
  11. ThinWhiteDuke

    ThinWhiteDuke Well-Known Member Thread Starter

    Location:
    New Zealand
    I'm not running Cool Edit but I haven't tried simply restarting CR RT. I'll try tonight :)
     
  12. ThinWhiteDuke

    ThinWhiteDuke Well-Known Member Thread Starter

    Location:
    New Zealand
    Thanks for the suggestion but that doesn't explain why my issue goes away with a simple change of software version.
     
  13. Uglyversal

    Uglyversal Forum Resident

    Location:
    Sydney
    As you should have deducted, I have not used that software so I don't have the precise answer. Different software versions are exactly that, different, when you have a working program, you should think twice before updating as on some occasions, upgrades feel more like a downgrade and most of the time -hopefully- they are an upgrade.
     
  14. ThinWhiteDuke

    ThinWhiteDuke Well-Known Member Thread Starter

    Location:
    New Zealand
    Update: I tried again after having restarted the laptop and now I have no issues at all. Very odd as the r humidity of the room is down to around 44 at 22c so well into the territory of static issues etc.

    I'm now unsure how to reproduce my problem and don't know what it really is, will try again and see if I can narrow it down further.
     

Share This Page