BobOD
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Salvaging Garbage Audio
Not sure if anyone can help, but figured it was worth a try. So, I recorded my portion of a podcast this morning using Sonar X2 Studio and an M-Audio Fast Track Pro interface. Was in a rush, so once I saw meters moving, I figured I was fine. Unfortunately, I think what happened is the default 16-bit, 44.1K recording setting in Sonar didn't match the default 24-bit 48K setting of the interface and I ended up with garbled audio that's only 11 minutes long instead of what should have been about 27 1/2 minutes. Is there any way to fix this? FYI, I've tried to use a few utilities I found on the web--R8Brain for sample rate and bit rate conversion and Header Investigator for tweaking the file header info on what the settings should be, and nothing seems to help. I'm desperate to get this fixed because otherwise the whole podcast is shot. Any thoughts or suggestions would be appreciated. Bob O'Donnell
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mettelus
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Re: Salvaging Garbage Audio
July 12, 14 7:36 AM
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I have never seen SONAR do such a thing, but I have seen video software do this. Are you saying the recorded track is garbled in SONAR, or it is garbled when assembling the podcast in another program (and if so, which one)?
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BobOD
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Re: Salvaging Garbage Audio
July 12, 14 12:19 AM
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The audio is garbled in Sonar itself. I first noticed it when I imported into Logic Pro on a Mac where I normally record this podcast and do the editing. So I went back to Sonar thinking I had exported incorrectly or something like that, but unfortunately, the original track in Sonar sounded exactly the same.
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Anderton
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Re: Salvaging Garbage Audio
July 12, 14 12:24 AM
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I think it's unlikely you'll be able to fix it, but it would help to know the nature of the garbling. Is it intelligible at all, are the words all jumbled together, is there distortion, does it sound like it's just running at too fast a rate, etc.
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BobOD
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Re: Salvaging Garbage Audio
July 12, 14 1:36 PM
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It's a combination of distortion, running too fast (note that the recording was supposed to be about 27 1/2 minutes but the files shows it at 11) and digital noise. If there was a way to post an attachment, I could upload the first ten seconds and you could hear what I mean. Bob
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BobOD
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Re: Salvaging Garbage Audio
July 12, 14 1:37 PM
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By the way, is this former EM editor Craig Anderton I'm chatting with? Because this is former EM editor Bob O'Donnell!
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ampfixer
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Re: Salvaging Garbage Audio
July 12, 14 2:10 PM
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It would be quicker to re-record than try and undo the glitch.
Regards, John I want to make it clear that I am an Eedjit. I have no direct, or indirect, knowledge of business, the music industry, forum threads or the meaning of life. I know about amps. WIN 10 Pro X64, I7-3770k 16 gigs, ASUS Z77 pro, AMD 7950 3 gig, Steinberg UR44, A-Pro 500, Sonar Platinum, KRK Rokit 6
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BobOD
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Re: Salvaging Garbage Audio
July 12, 14 2:12 PM
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The issue is that I need to get the other two participants back together (it's a three-person show), so the logistics are the challenge...hence my desire to save the audio if at all possible. But, I'm starting to lose hope on that front...
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Anderton
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Re: Salvaging Garbage Audio
July 12, 14 2:34 PM
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Yes, it's former EM Editor...hi Bob! You can post an example on hightail.com and give the download link here, the link is good for 7 days if you use the freebie version. But I suggest you upload a piece of the original file, not an MP3, just in case someone can figure out how to fix it.
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BobOD
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Re: Salvaging Garbage Audio
July 12, 14 2:46 PM
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Hey, great to reconnect Craig! Hope all is well... I'll go post something on Hightail now and then post the link here and hope someone can help. Bob P.S. Here's what I'm doing these days:
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BobOD
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Re: Salvaging Garbage Audio
July 12, 14 2:53 PM
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Well, looks like I haven't posted enough in order to put up a URL (as I discovered when the link to my new company website didn't work). BTW, the company is TECHnalysis Research and you just put those two words together and add a dot com to get to the site. As for the Hightail URL, not sure how I'm going to post that...got any ideas?
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scook
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Re: Salvaging Garbage Audio
July 12, 14 2:59 PM
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Put some spaces in the address so it is not recognized by the software as a URL, for example h t t p://some url instead of http://some url
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BobOD
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Re: Salvaging Garbage Audio
July 12, 14 3:03 PM
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Ah, got it...thanks. Still trying to get Hightail app loaded, but will post link shortly.
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BobOD
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Re: Salvaging Garbage Audio
July 12, 14 3:07 PM
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OK...here's the sample file. h t t p s://www.hightail.com/download/ZUcxR0lYQVM1UjVBSXRVag
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Splat
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Re: Salvaging Garbage Audio
July 12, 14 3:21 PM
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The first thing I would do is update the drivers and firmware of your interface (if applicable) in order to try and prevent it from happening again
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BobOD
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Re: Salvaging Garbage Audio
July 12, 14 3:41 PM
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Both the firmware and the driver are the latest version and I was able to create a clean new recording after the fact once I tweaked the Audio driver preference settings in Sonar, so I know I can be OK for future recordings, but was hoping to somehow fix this file.
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mettelus
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Re: Salvaging Garbage Audio
July 13, 14 4:46 AM
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Thank you for the sample. The file downloaded as a 32-bit float/44.1Khz (contrary to the OP), yet is noticeably "asymmetrical" and has severe clipping (after the 3.5s mark). I opened this with Adobe Audition, and Audition was having a very difficult time processing this wave file (i.e. it was hanging to even play it), which makes me wonder if the file was corrupted in some way (it is very unclear on "how" though). In the interest of time, it may be best to redo this, as well as do a brief run prior to the actual recording to make sure. I will often set up a track, record a bit as a test, then simply delete that test audio and record on the same track so that I know the setup is good. Based on the clipping in this file, I think it would be very difficult to recover it (if even possible). I have seen the asymmetrical post once before (from Beepster, I believe?) but totally forget the "root cause" of that.
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Anderton
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Re: Salvaging Garbage Audio
July 13, 14 11:43 AM
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Sorry Bob, but I looked at/listened to the waveform and doubt it can be fixed. It's a digital issue...it's like it was encoded by some malevolent being, and you don't have the decoder.
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BobOD
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Re: Salvaging Garbage Audio
July 13, 14 12:49 AM
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I really appreciate you both checking out the file, thank you very much. The outcome is, unfortunately, as I feared. The weird thing is I did a clean install of Sonar X2a and the latest Fast Track Pro drivers on another notebook that I had recently wiped and put a clean install of Windows 7 on and using the default settings for everything, I ended up with the same type of garbled audio issue on that machine when I did a short recording test. In futzing around with things on the machine I originally had recorded this file on (which runs Windows 8.1) I did get things to work properly, so now I have to figure out what I did again. Thanks again for the help and Craig, would be great to reconnect in more detail. Bob O'Donnell
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Anderton
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Re: Salvaging Garbage Audio
July 13, 14 2:56 PM
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First, I highly recommend upgrading to X3. That was the first release since the Gibson acquisition and fortunately, Cakewalk did a really outstanding job on the launch and the subsequent updates. I'm definitely not saying X2 is the cause of your problem, but X3 is a really mature implementation of the X-series concept. Second, you didn't indicate the driver rev or date but check out this thread: http://duc.avid.com/showthread.php?t=344372 Also of course notebooks have their own issues, like you need to disable wi-fi before doing audio (and all the other usual cautions about preventing spikes and latency issues). I suspect the sample buffer setting may have been set too low in the file I heard. If other processes were going on, what would normally be an acceptable setting may require more sample buffers.
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BobOD
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Re: Salvaging Garbage Audio
July 13, 14 11:27 PM
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