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Old 04-26-2012, 05:44 PM   #1
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16 bit VS. 32 bit
MP3 audio books from Gutenberg come as either 16 bit or 32 bit. Which one should I be using?
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Old 04-26-2012, 06:08 PM   #2
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I don't see any mp3 books designated that way on gutenberg.org. I've never heard of mp3 being 16-bit and 32-bit before. As far as I know, mp3 is mp3. It wouldn't work on all the players that are around if there were two flavors of files.
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Old 04-26-2012, 06:11 PM   #3
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http://www.gutenberg.org/files/9555/
See it is available as: 9555-mp3-16bit.zip and as:9555-mp3-32bit.zip
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Old 04-26-2012, 06:12 PM   #4
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Quote:
Originally Posted by susan_cassidy View Post
I don't see any mp3 books designated that way on gutenberg.org. I've never heard of mp3 being 16-bit and 32-bit before. As far as I know, mp3 is mp3. It wouldn't work on all the players that are around if there were two flavors of files.
Actually, mp3 files can use a number of compression rates, if that's what the OP is referring to. Although either 16 bps or 32 bps (or even kbps) would sound terrible.
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Old 04-26-2012, 06:13 PM   #5
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Maybe they mean 16 or 32 kbps. I can't think of what else that would mean. Get 32.
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Old 04-26-2012, 06:17 PM   #6
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Originally Posted by khalleron View Post
Actually, mp3 files can use a number of compression rates, if that's what the OP is referring to. Although either 16 bps or 32 bps (or even kbps) would sound terrible.
Neither sound terrible.
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Old 04-26-2012, 06:31 PM   #7
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I've never seen a bit rate that low. 48kbps is the lowest that Windows Media Player gives.
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Old 04-26-2012, 06:32 PM   #8
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Both of those sets are 16-bit. One is 16kbps and the other is 32kbps. However, as these are audio books in mono, not music, it's not like the audio degradation will be all that noticeable.

I have no idea if mp3 can handle 32-bit. I believe even FLAC (Free Lossless Audio Codec) can only do 24-bit.
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Old 04-26-2012, 06:44 PM   #9
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Being a nosy sort, I looked at the link to see what book you were interested in (The Memoirs of Sherlock Holmes, if anyone else is equally nosy) and noticed that it's a computer-generated audio book. You may be interested in LibriVox.org, which has the same title in two versions (here and here) with actual readers, as well as many other public domain audio books for free.
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Old 04-26-2012, 07:18 PM   #10
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Quote:
Originally Posted by Catlady View Post
Being a nosy sort, I looked at the link to see what book you were interested in (The Memoirs of Sherlock Holmes, if anyone else is equally nosy) and noticed that it's a computer-generated audio book. You may be interested in LibriVox.org, which has the same title in two versions (here and here) with actual readers, as well as many other public domain audio books for free.
Nosy yes. But your nosiness does not seem very accurate. It does not sound computer generated.
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Old 04-26-2012, 07:50 PM   #11
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If you actually go to the website of the people who created those audio books you will see that they state
Quote:
Every audio book produced and recorded by professional actors/narrators and experienced directors. No computerised text-to-voice convertions have been used.to use real people
And on the download page they say:

Code:
 8 Kbps [FREE]   Bearable quality
16 Kbps ($5 USD) Tolerable quality
24 Kbps ($6 USD) Reasonable quality
32 Kbps ($7 USD) Good quality
48 Kbps ($8 USD) Very good quality
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Old 04-26-2012, 08:22 PM   #12
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The OP provided this link: http://www.gutenberg.org/files/9555/

I clicked on the index link. After the title, this is what appears:

Quote:
This is a copyrighted computer-generated audio performance of Project Gutenberg's public domain book, "The Memoirs of Sherlock Holmes", by Arthur Conan Doyle. [Emphasis added.]
So forgive me for thinking I was being helpful by trying to direct you to a better source.
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Old 04-26-2012, 08:36 PM   #13
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Quote:
Originally Posted by Catlady View Post
The OP provided this link: http://www.gutenberg.org/files/9555/

I clicked on the index link. After the title, this is what appears:



So forgive me for thinking I was being helpful by trying to direct you to a better source.
No problem. Thanks anyway!
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Old 04-26-2012, 08:41 PM   #14
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bob123 is out to avenge the death of his or her father, Domingo Montoya.bob123 is out to avenge the death of his or her father, Domingo Montoya.bob123 is out to avenge the death of his or her father, Domingo Montoya.bob123 is out to avenge the death of his or her father, Domingo Montoya.bob123 is out to avenge the death of his or her father, Domingo Montoya.bob123 is out to avenge the death of his or her father, Domingo Montoya.bob123 is out to avenge the death of his or her father, Domingo Montoya.bob123 is out to avenge the death of his or her father, Domingo Montoya.bob123 is out to avenge the death of his or her father, Domingo Montoya.bob123 is out to avenge the death of his or her father, Domingo Montoya.bob123 is out to avenge the death of his or her father, Domingo Montoya.
 
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Quote:
Originally Posted by PeterT View Post
If you actually go to the website of the people who created those audio books you will see that they state


And on the download page they say:

Code:
 8 Kbps [FREE]   Bearable quality
16 Kbps ($5 USD) Tolerable quality
24 Kbps ($6 USD) Reasonable quality
32 Kbps ($7 USD) Good quality
48 Kbps ($8 USD) Very good quality
Thanks. So I guess Gutenberg would have what they call "Bearable quality".
In which case I don't see how they could have more than one quality. They wouldn't lower it? The 16 and the 32 bit sound the same to me. There is quite a difference in file size though.
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Old 04-26-2012, 09:07 PM   #15
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Quote:
Originally Posted by ilovejedd View Post
Both of those sets are 16-bit. One is 16kbps and the other is 32kbps. However, as these are audio books in mono, not music, it's not like the audio degradation will be all that noticeable.

I have no idea if mp3 can handle 32-bit. I believe even FLAC (Free Lossless Audio Codec) can only do 24-bit.
You'd be surprised at how noticeable it can be. You can easily get artifacts that will be noticed.
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