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What's wrong with my MP3 converter??

 
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Esther Law
Voice Talent



Joined: 30 May 2006
Posts: 43

PostPosted: Mon Apr 21, 2008, 00:34 (GMT)    Post subject: What's wrong with my MP3 converter?? Reply with quote

OK geeks. I need your geeky brilliance to solve this little mystery.

I'm using iTunes to do my MP3 conversion BUT when I've set it at 96kbps, my voice sounds weird. (Yes, that's the technical term for it! Laughing ) It sounds much better at 128kbps.

WHY? I'm so confused. Shocked

Esther.



Testing 128kbps.mp3
 Description:
Here's the much more normal sounding 128kbps MP3 file. (But maybe it still sounds weird and my un-trained ears can't hear it. At least it sounds better than the other file!)

Download
 Filename:  Testing 128kbps.mp3
 Filesize:  221.75 KB
 Downloaded:  59 Time(s)


Testing 96kbps.mp3
 Description:
Here's the weird-sounding 96kbps MP3 file.

Download
 Filename:  Testing 96kbps.mp3
 Filesize:  84.51 KB
 Downloaded:  52 Time(s)

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Jacob Ekstroem
Voice Talent



Joined: 23 Jul 2007
Posts: 721

PostPosted: Mon Apr 21, 2008, 06:57 (GMT)    Post subject: Reply with quote

Esther,

the weird "spacey" sound on the 96 kbps-file is just typical artifacts of hard bit-reduction.

Different MP3-encoders uses different algorithms to bit-reduce the sound, some does it better at low bit-rates, others at higher rates. There's nothing you can do about it, other than either encode at a higher bit-rate, or try a different encoder.

Do you really need to encode to 96 kpbs? It's quite low!

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Jacob Ekstroem
- "Try the delightful Danish..."
SaVoa No. 07008
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Emmett Andrews
Voice Talent



Joined: 17 Jul 2004
Posts: 132

PostPosted: Mon Apr 21, 2008, 07:05 (GMT)    Post subject: Reply with quote

Any reason you're using 48k? Why not 44.1? Switching to 44.1 will increase the quality of your 96kbps recording hugely. If you need to record at 48k, encode at 160kbps.

Emmett
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Esther Law
Voice Talent



Joined: 30 May 2006
Posts: 43

PostPosted: Wed Apr 23, 2008, 17:53 (GMT)    Post subject: What are YOUR MP3 settings? Reply with quote

Emmett Andrews wrote:
Any reason you're using 48k? Why not 44.1? Switching to 44.1 will increase the quality of your 96kbps recording hugely. If you need to record at 48k, encode at 160kbps.

Emmett


I encoded it the way V123 recommends on the Audition page. They say, and I quote:

"Please record a custom demo using the script provided and then upload it in MP3 format. Please make sure the file extension is .mp3 and the file size is less than 10 MB. We recommend normalizing the volume to -3 db and uploading files encoded with the following attributes: 44.1 kHz, 16 bit, mono, 96 Kbps."

So, good-little-girl-me has been following directions....and hating that "spacey" sound.

Of course, lately, I just said 'to heck with it' and recorded it at 128 kbps and the system hasn't slapped me on the wrist yet. Then again, when they say 96 kbps, did they mean 96 kbps mono = 192 stereo? Maybe I misundertood. (But that happens so RARELY! Shocked )

So what settings do you folks have for your MP3 conversions?

Esther.
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Emmett Andrews
Voice Talent



Joined: 17 Jul 2004
Posts: 132

PostPosted: Wed Apr 23, 2008, 22:53 (GMT)    Post subject: Re: What are YOUR MP3 settings? Reply with quote

Esther Law wrote:
Emmett Andrews wrote:
Any reason you're using 48k? Why not 44.1? Switching to 44.1 will increase the quality of your 96kbps recording hugely. If you need to record at 48k, encode at 160kbps.

Emmett


I encoded it the way V123 recommends on the Audition page. They say, and I quote:

"Please record a custom demo using the script provided and then upload it in MP3 format. Please make sure the file extension is .mp3 and the file size is less than 10 MB. We recommend normalizing the volume to -3 db and uploading files encoded with the following attributes: 44.1 kHz, 16 bit, mono, 96 Kbps."


Esther.


But you didn't save it that way...Your file is at 48 kHz, 16 bit, mono, 96 Kbps. NOT 44.1...Make that change and you'll like the results better. That's what I was talking about. My studio is master-clocked at 44.1, so when I played your file, the system freaked out. That's why I noticed that it wasn't right.

Emmett
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Esther Law
Voice Talent



Joined: 30 May 2006
Posts: 43

PostPosted: Thu Apr 24, 2008, 00:32 (GMT)    Post subject: Re: What are YOUR MP3 settings? Reply with quote

Emmett Andrews wrote:
But you didn't save it that way...Your file is at 48 kHz, 16 bit, mono, 96 Kbps. NOT 44.1...Make that change and you'll like the results better. That's what I was talking about. My studio is master-clocked at 44.1, so when I played your file, the system freaked out. That's why I noticed that it wasn't right.

Oh WEIRD! I checked my settings and they say 44.1 kHz. I wonder why it's doing 48 kHz. I'm going to have to check with the Apple people. Thanks for letting me know!

Esther.
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