QuickShow audio converter

[mick10256]

Hi Guys,

Anyone having this problem with the QS MP3 to WAV converter? I'm noticing strange decompression artifacts, sort of echo's, in some audio files imported into the QuickTimeline. Converting using alternative SW is fine but then QS won't import the good WAV file. Not getting a great response from Pangolin lately either.

Mick

[White-Light]

There are a lot of different standards for WAV files and converting often produces files that won't import.

I didn't know there was a QS conmvertor but I don't have a recent QS build, or did you mean Quick Time Convertor?

I tried QT and Audacity and have yet to produce an importable file due to standard differences.

By far the best solution is to simply buy WAV's instead of MP3's as MP3's also suffer time slip as now doubt you've already discovered.

As for Pangolin, don't forget its holidays.

[Pangolin]

Hi Mick,

First let me wish you a Happy New Year and the best for 2013!

Regarding the problem you reported above, I'm sorry to hear about this. I'm not sure with who, within Pangolin, you've communicated with, but I'd like to pick up the ball and communicate directly with you about this. You can email me directly using our contact form at www.pangolin.com/contact, and may also call the office at virtually any time day or night (1-800-PANGOLIN) or connect with me by Skype. My Skype nickname is PangolinShows.

In order to evaluate the problem, we will need to receive the MP3 file you're having difficulty with. If we see the same problem on our end, then we'll investigate what we need to change in QS to make it work. If we don't see the problem, then we'll suggest that it is likely with the codecs in your computer, and we can recommend a replacement codec kit that works well. In any event, rest assured that we'll work to solve the problem.

Best regards,

William Benner

[mick10256]

[QUOTE=Pangolin;249129]Hi Mick,

First let me wish you a Happy New Year and the best for 2013!

Regarding the problem you reported above, I'm sorry to hear about this. I'm not sure with who, within Pangolin, you've communicated with, but I'd like to pick up the ball and communicate directly with you about this. You can email me directly using our contact form at www.pangolin.com/contact, and may also call the office at virtually any time day or night (1-800-PANGOLIN) or connect with me by Skype. My Skype nickname is PangolinShows.

In order to evaluate the problem, we will need to receive the MP3 file you're having difficulty with. If we see the same problem on our end, then we'll investigate what we need to change in QS to make it work. If we don't see the problem, then we'll suggest that it is likely with the codecs in your computer, and we can recommend a replacement codec kit that works well. In any event, rest assured that we'll work to solve the problem.

Best regards,

William Benner[/QUOTE

Thanks William,

I've loaded QS on my two laptops and the rack mount I use. All three show the same artifact. Two run windows XP and one windows 7. Not sure how I upload files here as I'm a newbie to PL. I'll try sending you the MP3 via Pangolin email. If you have an ftp maybe I can send you the before and after. It's Aaron who usually answer my emails.

[Pangolin]

Hi Mick,

So far I haven't received an email from you. If the MP3 is less than 10MB, you could send it to me by email. In any event, once I receive your email we can go further. It might be best to discuss this over the phone or by Skype. We'll see...

Best regards,

William Benner

[DJBob]

www.Convertfiles.com is a free online service that will reformat music from MP3 to WAV. I use it all the time

[mick10256]

www.Convertfiles.com is a free online service that will reformat music from MP3 to WAV. I use it all the time

Thanks DJBob, I'll give that one a try. I've tried a few already but seem to hit the same problem. All convert fine but when I pull in the show to Quick Timeline it complains that the format is not recognised.

[mick10256]

www.Convertfiles.com does indeed generate QT importable files and these can then be edited in Audacity and still work with QT. Slightly convoluted BUT a work around.
Thanks all.

[Pangolin]

Hi Mick,

We have looked into this and found that the reason why this happens is because your audio file uses what's called "variable bitrate encoding". Most MP3 files will use only a single bitrate, for example 128kbits, or 192, or something like this. Your file bounces all over the place, down below 64 to way above 300. The pop happens at a time when the file is going from a very low bitrate immediately to a very high bitrate.

We're looking into this right now -- to see how we can solve this problem. But in the mean time, there are a variety of audio converters that will work, as you have discovered.

Best regards,

William Benner

[swamidog]

Bill,

VBR encoding is actually reasonably common. It's used to increase compression efficiency.

I have seen other software packages that have issues with this. Apple's Final Cut Pro Studio comes to mind.

Hi Mick,

We have looked into this and found that the reason why this happens is because your audio file uses what's called "variable bitrate encoding". Most MP3 files will use only a single bitrate, for example 128kbits, or 192, or something like this. Your file bounces all over the place, down below 64 to way above 300. The pop happens at a time when the file is going from a very low bitrate immediately to a very high bitrate.

We're looking into this right now -- to see how we can solve this problem. But in the mean time, there are a variety of audio converters that will work, as you have discovered.

Best regards,

William Benner