Crackling and hissing noises in background of podcast audio

I've just recorded the audio for a podcast (two-person interview), and as I've listened back I've found an annoying crackling noise in the background at a few points. Any ideas about how to remove (or at least minimise) it? Also, at some points there is a kind of hissing noise in the background (almost like the distant sound of crickets!) - any tips on minimising or removing that?

Thanks for the reminder Richard and yes, I had done that via the "common" folder and cleaned out all the cache in the various folders. The result was negative, still had the issue.
So, I decided to move all audio (about 16 mins) on track 1 down to track 2, leaving track 1 completely empty of audio. Then I muted track 1.
The issue was happening at around 4:20secs into the audio. Interestingly, when testing Pr crashed when the playhead reached 4:20secs, right at the spot that I was getting the old "deleted" audio in the background with a lot of crackle. I restarted my Mac completely and repeated the process of moving all audio to track 2 etc etc... and once again Pr crashed at 4:20secs.
What to do?
I copied the piece of audio giving me issues from track 2 and pasted it into track 1. I first pasted it away from the problem area (4:20secs) and there was no "old deleted audio in the background with a lot of crackle" to be heard. :-) So I moved this piece of audio and placed it right above the 4:20secs problem area and reduced the audio volume to -infinity. I also muted track 1 again.
Then I played the entire video... and, Pr didn't crash and the "old deleted audio in the background with a lot of crackle" was gone. Gone kinda, because this is a work around and the issue is still there but suppressed for now. I have no idea why it happened and a more technical solution is totally welcome.
What do you think about the above Richard? Hope it made sense? Felt like it took 25 years to sort this out...

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Hi @White_Walker ,
Welcome to the HP Forums!
It is a superb place to find answers and information!
For you to have the best experience in the HP forum I would like to direct your attention to the HP Forums Guide Learn How to Post and More
I understand you are getting a crackling and popping sound from your notebook.
Have you done all your Windows updates?
Have you ran the HP Support Assistant to aid with HP updates?
Have you checked for viruses or malware?
Have you tried using MS Fix It ?
Here is a link to HP Notebook PCs - Sound from Notebook Speakers is Distorted, Pops, or Hisses (Windows 7 and Vista) that should also help.
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Sparkles1
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Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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TaneyThanks for contacting AppleCare chat support. My name is Taney. Please give me a moment to look over your information.
Me:hi
Me:am using iPhone 4s receiver crackling noise issue
TaneyHello there!
Me:yes
TaneyUh oh! That's never a fun issue to experience and I'm glad to help you in any way that I possibly can, right here over chat, you're in the right place.
Me:i have replaced more then 4 times
Me:same problem remains
Me:i asking what i have to do
Me:many of apple users experienced same issue and they register complaint in apple site
Me:but no solutions
Me:hello there ?
TaneySo your receiver crackles and you've replaced this iPhone more than 4 times for that same issue, is that what you're meaning? Just wanting to make sure.
Me:yes
TaneyI appreciate your time with me while I research our best next step to take from here. That almost sounds like maybe it's not the hardware or maybe you should get a replacement SIM card. Have you asked your carrier or replaced the SIM card for this issue?
Me:i have replaced 5 different sim cards and different networks but noise coming
TaneyDifferent networks like different carriers?
Me:yes
Taneyin that case it sounds like it's probably related to your region or possibly whoever you are contacting.
TaneyI don't see any previous cases with us here for this iPhone, I wonder if I have the proper device here, unless you're referring to replacing them on your own and not through Apple.
Me:uh oh did you check your apple site many of apple uses post this same issue
Me:uh oh did you check your apple site many of apple users post this same issue
TaneyI don't doubt you're experiencing the issue at all, I totally believe you.
TaneyYou can submit product feedback about this at apple.com/feedback. We have a team here at Apple, who's entire job is dedicated to reviewing this feedback, and escalating it to the proper outlets (such as the engineers for iTunes, iPhone, iPad, etc.), so you can rest assured that your voice will be heard! The more feedback we receive about product features, the more likely we are to implement them!
TaneyIt sounds like you've tried so many things, I'm not sure what might be a different resolution for you and this crackling issue. Different phones, carriers, SIM cards, and probably all amounts of troubleshooting. Would you want to try some things here with me now?
Me:i have already submitted my feedback
TaneyIf you can't hear a person on a call or voicemail or if the sound quality is poor on iPhone(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window)(Opens in new window) - Helpful article for this. Let me know if you've already tried all of these suggested steps.
Me:i have tried all these checking
Me:after this much of issue sill am using iPhone because i loved it
Me:but this silly issue irritating me when on voice call
TaneyThank you. Please allow me just a moment to contact some additional support for us and we may bring them into our chat for some insight.
Taneyit's only on cellular calls or do you experience the issue with anything else? If you toggle to speakerphone, does it continue with the call or become clear?
Me:issue only in ear receiver
Me:there is no issue in headphone or speaker phone
TaneySo if you switch to speaker during a call, there is no crackling noise? That sounds strange. That would normally point to a hardware concern, but that wouldn't make sense considering you've tried several different iPhones and all of the other troubleshooting.
TaneyNot sure, we'll see what our consultant suggests we do from here. Thanks for being so awesomely patient.
TaneyWhat would you like for us to do, as the best goal that you had in mind?
Me:i think this very simple issue for apple, Please fix all your feature product
TaneyIt doesn't sound like the devices are likely to be the reason for what you're experiencing. I wish there was an easier answer but I am reviewing your case with another advisor right now and we'll see what additional information we can find for you.
TaneyIt could even be related to the iPhone 4s.
TaneyUpgrading could be an alternative.
Me:that i dont know
Me:i didnt check any other phone
Me:upgrading means ?
TaneyPerhaps the technologies in your region/s are better suited for a newer iPhone model. I don't want to make promises but I would suggest visiting a carrier location and maybe trying a 5 or above and see if you still experience the issue.
TaneyThey can usually give you some kind of trade or other options for your 4s to get value towards upgrading.
Me:okay but check this https://discussions.apple.com/thread/3414732?tstart=0
Me:also this https://discussions.apple.com/thread/3414732?start=60&tstart=0
Me:Please give solution for this issue otherwise you loose customers
Me:iPhone 5 https://discussions.apple.com/thread/5972811
TaneyI do see those threads. I don't want you to keep experiencing the crackling noise issue anymore. I wouldn't like that on my calls either.
Me:iPhone 6 https://discussions.apple.com/thread/6586599
TaneyCan I have you speak with my friend, Joseph?
TaneyI'll bring him over whenever you're ready.
Me:am from india
Me:am ready
TaneyThank you.JosephThanks for contacting AppleCare chat support. My name is Joseph. Please give me a moment to look over your information.
JosephHi there Ponsubbiah!
Me:yes
JosephI understand that you’re having a lot of trouble with your iPhone 4S, even after multiple service replacements there is still trouble with the receiver, a crackling noise that has not been solved yet. Is that correct?
Me:yes you are correct
JosephThat is absolutely terrible to hear, especially after so many service attempts at this, this really is an unfortunate issue.
JosephI am thinking an upgrade could be possible for this, something to consider. Have you had an opportunity to test with newer iPhone models?
Me:last week also i went to apple store for this issue but they said we cannot do any more said sorry simply
JosephThey cannot do anymore service replacements?
Me:are you sure is upgrade is only solutions but what you will say for these posts Me:iPhone
Me:https://discussions.apple.com/thread/5972811
JosephIn your experience with the iPhone 4S so far, I think trying a newer model could work better for you, not to say it is the only solution but replacement for you so far has not been successful.
Me:https://discussions.apple.com/thread/6586599
JosephHaving a look now
JosephHave you had a chance to use a new model?
Me:am sorry just a month before i have paid for replacement
JosephYou paid for the last replacement? Sorry, I don’t know the full details for your service.
Me:yes
Me:because warranty period is over
JosephMakes sense, this isn’t good though, not for you.
JosephTrying to think about what we could do, have you spoke with our support there in India, by phone?
Me:yes but no use of it
Me:so apple wont fix this issue right?
Me:you people check often apple support communities
JosephIt’s difficult to fix an issue like this, it doesn’t seem to affect all devices, I’ve never seen it affect so many devices in a row.
JosephYes, it is something we monitor closely to keep log of specific problems.
Me:if you do this issue will not repeat your new product
JosephIt isn’t something i’ve experienced personally with my own devices, but i’m trying to understand it. Is it only with certain contacts?
Me:i never expect this from apple, dont know what to say
Me:no for all
JosephCan you describe it for me?
Me:when i am talking with someone in ear speaker stat crackling noise in background if we are in very silent place the noise we can hear clearly
JosephBoth of you can hear it?
Me:no, in my phone only. the same sim card i have used in NOKIA mobile but there no noise in this
JosephDo you use a case on your iPhone's?
Me:yes
Me:okay. any suggestions or solutions?
JosephHonestly, I think at this point, using a different model. One of our newer ones to see if your experience improves would be best.
JosephIt sounds like something is interfering with your conversations, a crackling noise like that isn’t normal at all. Testing without a case could help.
Me:I dont think so again go for apple. If i face same issue in new one then i loose my money. anyway thank you for your reply.
JosephAppreciate you letting us know about the problem, it definitely helps us keep track of them, even for previous models.
JosephIf you have time later please reach out to us by phone and we can see about more options in this.
Me:Thank you Jo. Bye.
JosephPlease take care now
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