13 Replies Latest reply on Jan 12, 2011 10:24 AM by the_wine_snob

    Loud popping noise at split clips. Premiere Elements 9

    studmuffinsparky Level 1

      I'm new to this forum, although I have searched

      all over the internet for answers to my question. Really hoping I can get some answers, especially after waiting a total of 29 minu

      tes on hold for the Adobe Video Department.

       

      My problem is this: when I split a clip in Elements 9, and reposition it elsewhere, it creates a POP at the split. This did not occur on my Premiere Elements 8. It is a major problem, as I work a lot with video and sound and this seemingly simple task of splitting clips is made much more aggravating with the pop.

       

      It pops during playback every single time at the cut. I looked into the "zero-crossing" decibal levels and to no avail. I can import a clip, and without messing with the audio levels, just cut and reposition, and the pop still occurs. When I "Share" as an MPEG2 file (my usual filetype), the popping is still there. It almost makes my short films unbearable because it's obvious and annoying.

       

      PLEASE HELP!!!

        • 1. Re: Loud popping noise at split clips. Premiere Elements 9
          nealeh Level 5

          What Project Preset are you using? Are your Video and Audio still linked? What method are you using to split the clip?

           

          Cheers,
          --
          Neale
          Insanity is hereditary, you get it from your children

          • 2. Re: Loud popping noise at split clips. Premiere Elements 9
            studmuffinsparky Level 1

            I use the DSLR 1080p preset. Apparently my Kodak Zi8 f

            ile is read as that because I originally had a different present and Elements suggested I change it to that so since then that's what I use.

             

            Yes the video and audio are still linked, I've tried importing my clips and immediately cutting them without touching anything else.

             

            I use the "split clip" icon like I always do... =(  The one next to the "Text" icon.

             

            I'm hoping you can help me, Neale. It's sooooo annoying trying to edit video and at every cut this "POP" during playback. Everytime.

            • 3. Re: Loud popping noise at split clips. Premiere Elements 9
              Steve Grisetti Adobe Community Professional

              Also, does your computer use RealTek audio? If so, ensure you have the latest RealTek HD audio codecs from http://www.realtek.com.tw/.

               

              Clicking is pretty common with outdated RealTek codecs.

              • 4. Re: Loud popping noise at split clips. Premiere Elements 9
                studmuffinsparky Level 1

                Steve,

                 

                You know I never thought about updating codecs...I do have RealTek, now that I think about it. This is great, I'm going to check that out when I get home. Thanks alot, guys!

                • 5. Re: Loud popping noise at split clips. Premiere Elements 9
                  the_wine_snob Level 9

                  Welcome to the forum.

                   

                  One possible problem could be the exact spot of the Cuts.

                   

                  If one does not Cut right at a "zero-crossing," then the wave will be "broken," and a pop will result. Sometimes, if one is close to a zero-crossing, the pop will be fairly small, and might not be heard at all. However, and especially where one has two Clips, where the zero-crossings were missed, the pop will be greatly pronounced.

                   

                  One most often encounters these pops, when using a Video-editing program, like PrE, as most good Audio-editing programs will allow one to limit all Cuts to zero-crossings. Most Video-editors do not have that capability.

                   

                  Now, you might ask what "zero-crossings" are. If you look at an Audio wave, you will see that it crosses the center line  The number of crossings in a set Duration will be based on the Frequency of the Audio signal. Those zero-crossings are the point of silence. If one has cut the wave at its high-point, only part of that signal will be included at that cut, and it will be fairly loud. That will create a pop. If one butts up to another Clip, and it was cut at a low-point, the pop will be much more pronounced.

                   

                  There are a couple of ways to address the non-zero-crossings issue:

                   

                  The application of a Cross-Dissolve will often "hide" the lack of zero-crossings, and mask the pop, or at least greatly diminish it.

                   

                  As most NLE's (Non Linear Editors for Video) are Frame-Accurate, the Audio is pretty much ignored. Some, like PrPro, will allow one to work on Audio, displayed in Audio Units, though the Video can still ONLY be Cut at the Frame Level. Still, one can independently adjust the Audio portion of the Clip at the Audio Units level, and can just shorten that Audio to get to a zero-crossing. Almost ALL Audio-editing programs, from Adobe Audition, down to the free Audacity, will allow one to edit to Audio Units, so it's much easier to find and Cut on the zero-crossings. Audition even has a setting to ONLY edit on zero-crossings. By editing the Audio portions (files) in such a program will almost always clear up the pops. Audition also has some neat Effects to eliminate almost all transients (basically what one is building, when the Cuts do not fall on zero-crossings), such as pops from the mic, or near the mic. These Effects will do a great job of maintaining the non-Transient frequencies, so that one keeps the majority of the Audio, and ONLY addresses the Transients. Note: PrE does not allow one to change the TimeCode from Frames to Audio Units, like its "big-brother."

                   

                  If one has many Clips, that miss the zero-crossings badly, one workflow would be to Export the Audio to a PCM/WAV file, bring it into Audition, and address the Transients, then Save that edited/restored file, replacing the various Audio Clips with this new file.

                   

                  There is also a great little Audio utility, Audio Cleaning Lab, from Magix, that does a surprisingly good job of cleaning up ticks and pops. Though I use Audition for most of my Audio work, I have to admit that I reach for ACL first in many cases - amazingly good little program! I know of one other ACL user here, Neale, who also loves that program.

                   

                  My guess is that in the past, you just hit the zero-crossings, or used an Audio Transition, that masked them. I doubt that it was a differences in program, and just the Cuts that were made, or the Transitions used.

                   

                  Good luck,

                   

                  Hunt

                  • 6. Re: Loud popping noise at split clips. Premiere Elements 9
                    studmuffinsparky Level 1

                    Thanks a lot, Bill!

                    I'll look into the zero-crossings and the audio programs to address the issue. I'll get back with my results later!

                    • 7. Re: Loud popping noise at split clips. Premiere Elements 9
                      the_wine_snob Level 9

                      Now, it could just be an issue with the Realtek driver, and that would be the first thing that I would look at. All sorts of things can render an audio, or video driver obsolete. That is why Realteck, nVidia, et al, issue them so very often.

                       

                      If that does not address your issues, then you can explore the zero-crossings theory.

                       

                      Good luck, and let us know how it goes.

                       

                      Hunt

                      • 8. Re: Loud popping noise at split clips. Premiere Elements 9
                        the_wine_snob Level 9

                        As this has come up several times, and on many fora, I just did a Tips & Tricks ARTICLE with some illustrations of Zero-Crossings.

                         

                        Thanks for getting me focused, as I had meant to do that article for quite some time.

                         

                        Good luck,

                         

                        Hunt

                        • 9. Re: Loud popping noise at split clips. Premiere Elements 9
                          studmuffinsparky Level 1

                          Bill,

                           

                               I updated my codecs from the Reatltek website. I got my laptop in July so it's not old or anything, but I downloaded the latest Realtek HD Audio Codec (had to uninstall current to install this one). Just a note, when I went to my Driver Manager on my laptop I clicked on my Realtek Audio and proceeded to "Check for Update" and it said it was already the latest version.

                          Still, I uninstalled what I had and installed this newly downloaded codec from Realtek.

                          I then went and created a brand new project and imported random clips and there then split them at random times and switched them around in the timeline.

                           

                          My findings show that some of the audio popping has completely gone away. In many of the clip transitions there was no popping.

                          In other transitions, however, popping still occured. Now, you mentioned using a "cross-dissolve" for the audio. I am familiar with the Video Transition "cross-dissolve" but have not seen one for Audio. I only see "Constant Power" and "Constant Gain". So I used those transitions at the split where popping occured and shortened the transition time to I believe 00:00:01 (the shortest I could) and the popping seemed to have been erased.

                           

                          So all in all, a success. I appreciate all the help guys, really.

                           

                          In the future however, and I'm not sure if you have this problem, how do YOU handle the pops, or do you even experience it? I know you use Audio programs to fix various things, is "popping" one of them? Because it sure is a pain to need to add an Audio Effect at every cut. And when I work on short films with dozens-hundreds of splits here and there, will I need to constantly input these audio transitions? It's an issue I didn't seem to have on Premiere 8. 9 is flawless for me, save for the audio pop, which completely ruins the video.

                          • 10. Re: Loud popping noise at split clips. Premiere Elements 9
                            nealeh Level 5

                            Can you zoom right into your timeline to single frame level and post a screen shot of that timeline (make sure that both the video and audio tracks are showing).

                             

                            Cheers,
                            --
                            Neale
                            Insanity is hereditary, you get it from your children

                            • 11. Re: Loud popping noise at split clips. Premiere Elements 9
                              the_wine_snob Level 9

                              Both Constant Power, and Constant Gain can be applied to the Head, or Tail of an Audio Clip, or can span Audio Clips that are butted-up to each other. If you notice the name, "Cross-Fade" you will get the idea that each is double-purpose - single, or across two Clips. I used the wrong term (from PrPro and other audio-editing programs) and PrE calls them "Cross-Fades," and NOT "Cross-Dissolves." Thanks for bringing that mistake to my attention. [I have to stay on my toes, just to remember which forum I am in, and then try and remember the terms used by several Adobe programs - plus my memory is fading... ]

                               

                              Good luck,

                               

                              Hunt

                               

                              PS - glad that the new Realtek driver got you a bit closer. Now to find the cause for those remaining pops!

                              1 person found this helpful
                              • 12. Re: Loud popping noise at split clips. Premiere Elements 9
                                studmuffinsparky Level 1

                                Sorry for such a late response

                                I haven't gotten on Premiere for a

                                few days. The problem seems mostly fixed...

                                I will update as I go along, but minor tweaks here and there seem to definitely help.

                                 

                                Thank You, everyone for the tips!

                                • 13. Re: Loud popping noise at split clips. Premiere Elements 9
                                  the_wine_snob Level 9

                                  Great news, and please do update the thread, as your findings and solutions will very likely help another user in the future.

                                   

                                  Good luck,

                                   

                                  Hunt