Different timecodes in audacity vs. vlc

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mremis
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Different timecodes in audacity vs. vlc

Post by mremis » Sun Nov 28, 2010 1:09 am

I am having the weirdest problem,

I am producing a podcast online, and part of the post is to show which topics start at what timecode. I am correctly writing down the timecodes in audacity, but when I play the podcast in VLC or Windows Media Player the time that it shows is different than the one I had written down from audacity?

Anyone ever experience this or know a solution?

Thanks.

kozikowski
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Re: Different timecodes in audacity vs. vlc

Post by kozikowski » Sun Nov 28, 2010 6:27 am

Anyone ever experience this or know a solution?
I have not experienced this. I just opened up a two hour long show in Audacity 1.3.12 and VLC player and they came out exactly the same length and a segment in the middle came out exactly correct on both.

I would run, do not walk to download and use Audacity 1.3.12. Audacity 1.2 is no longer supported, patched or updated -- and it's old. It can be unstable on some computers.

http://audacityteam.org/download/

Here's a sound test. It's a completely uncompressed WAV file. It's 49 seconds long and it's over 10MB, so it's a little stiff download.

http://www.kozco.com/tech/c304-2.wav

It's an engineering test. Boooo - ring.

It reads 49 seconds on both VLC player and Audacity 1.3.12. See what happens to you.

Koz

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Re: Different timecodes in audacity vs. vlc

Post by mremis » Sun Nov 28, 2010 11:01 pm

hmm, I'm using 1.3.1.2

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Re: Different timecodes in audacity vs. vlc

Post by steve » Sun Nov 28, 2010 11:08 pm

mremis wrote:hmm, I'm using 1.3.1.2
You posted in the "Audacity 1.2.x" forum.
I'll move this to the 1.3.x forum.
mremis wrote:the time that it shows is different than the one I had written down from audacity?
How much different is it?
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

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Re: Different timecodes in audacity vs. vlc

Post by kozikowski » Mon Nov 29, 2010 12:44 am

How much different is it?
And which direction? I predict the show in Audacity is too short. Audacity plays shows it doesn't recognize or which may be damaged too fast. Did you create a large montage of different music files from different places? Audacity isn't a very good converter. It's best to have all your music in one single format before you start editing in Audacity.

Koz

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Re: Different timecodes in audacity vs. vlc

Post by steve » Mon Nov 29, 2010 12:48 am

<em>steve</em> wrote:How much different is it?
... and just thought ... and what format are you using when you export from Audacity?
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Re: Different timecodes in audacity vs. vlc

Post by mremis » Mon Nov 29, 2010 3:11 am

Sorry I didn't realize what forum I am posting in, I am not new to audacity, but new to the forum.

I'm starting with a mono mp3, and just cutting out a few blank spots, I export it to wav (don't want to lose quality), and then use dbpoweramp to convert it to a low bitrate mp3 (it is a podcast of a talk radio show). The timecode in audacity is a bit behind the timecode in VLC, they start off close together, but as you get into the later parts of the show the timecodes go farther apart. It has the same length in audacity as in VLC.

Thank you for your help so far.

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Re: Different timecodes in audacity vs. vlc

Post by steve » Mon Nov 29, 2010 3:18 am

I'm not sure what you mean by "the timecodes go farther apart".
Perhaps you could give a step-by-step method of how to reproduce the problem.
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mremis
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Re: Different timecodes in audacity vs. vlc

Post by mremis » Mon Nov 29, 2010 3:49 am

Ok for this podcast, in audacity the timecodes are for the different segments

7:28, 21:03, 26:19, 34:43, 47:05, 59:03

I am starting out with an mp3 (44.1 KHZ, 16 bit, 128 kbps). I export it in audacity as a WAV, and then convert it to a 22KHZ, 16bit 32kbps mp3 with lame encoding.

When I listen to the final converted mp3, the timecodes above show up at these times in VLC.

7:32, 20:50, 26:12, 34:43, 46:51, 58:55

When I take the exported mp3, and view it in audacity, the times line up with the original timecodes.

I hope this helps.

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Re: Different timecodes in audacity vs. vlc

Post by kozikowski » Mon Nov 29, 2010 4:25 am

A possibly unimportant point. 44100 and 22050 are standard sampling frequencies. 22000 is not.

Koz

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