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MP3PRO Format
Team Owner
Joined: Feb 2000
Posts: 53,527
Likes: 77
From: Arizona
Originally Posted by routesixtysix
Burned an MP3PRO CD with Nero V7. Works fine in the Vette CD player. Got 19 Audio CDs worth of tunes on 1 MP3PRO CD.
But the Vette can only relate to 250 (or less) songs per CD, which you can do with plain old MP3.
So what can, or does it do better than the plain MP3?
Thread Starter
Racer
Joined: Jul 2002
Posts: 474
Likes: 1
From: Wake Forest NC
Originally Posted by Hoonose
That's some new boosted MP3 type compression?
But the Vette can only relate to 250 (or less) songs per CD, which you can do with plain old MP3.
So what can, or does it do better than the plain MP3?
But the Vette can only relate to 250 (or less) songs per CD, which you can do with plain old MP3.
So what can, or does it do better than the plain MP3?
Safety Car
Joined: Aug 2005
Posts: 4,279
Likes: 82
From: North Strand, NMB, SC; Retired x 2 (US Army: 70-90 AD) (US Army: 91-16 DAC); yea, I'm old.
Just for clarification...
You are getting 19 complete CDs worth of tracks at the highest quality level using the new format and not 19 CD tracks?
Post #1 says:
"Burned an MP3PRO CD with Nero V7. Works fine in the Vette CD player. Got 19 Audio CDs worth of tunes on 1 MP3PRO CD."
Post #3 says:
..."With MP3PRO at the highest quality level, I was able to get 19 audio CD tunes on one MP3 disk."...
Just getting a check-up from the neck-up...
Post #1 says:
"Burned an MP3PRO CD with Nero V7. Works fine in the Vette CD player. Got 19 Audio CDs worth of tunes on 1 MP3PRO CD."
Post #3 says:
..."With MP3PRO at the highest quality level, I was able to get 19 audio CD tunes on one MP3 disk."...
Just getting a check-up from the neck-up...
Team Owner
Joined: Feb 2000
Posts: 53,527
Likes: 77
From: Arizona
Originally Posted by routesixtysix
It is a boosted compression format. The advantage for me is the ability to get more audio CDs on one MP3 CD. It's true about the song limit (the owner's manual says 255), but with normal MP3 files at the highest quality level I was only able to get 5 or 6 audio CD tunes on one MP3 disk. With MP3PRO at the highest quality level, I was able to get 19 audio CD tunes on one MP3 disk. The total number of tunes did not exceed the limit.
The next question is how do they sound? Do you have any types of comparisons between the 2 formats, and the various quality levels?
I never felt the need to go too high a quality in my car's environment, but if the quality comes 'free' with the new format, then what the hey!
Last edited by Hoonose; Nov 20, 2006 at 03:48 PM.
Melting Slicks
Joined: Jan 2005
Posts: 2,923
Likes: 1
From: The Corner of No and Where Arkansas
St. Jude Donor '05-'06-'07-'10
Originally Posted by LJD51
You are getting 19 complete CDs worth of tracks at the highest quality level using the new format and not 19 CD tracks?
Post #1 says:
"Burned an MP3PRO CD with Nero V7. Works fine in the Vette CD player. Got 19 Audio CDs worth of tunes on 1 MP3PRO CD."
Post #3 says:
..."With MP3PRO at the highest quality level, I was able to get 19 audio CD tunes on one MP3 disk."...
Just getting a check-up from the neck-up...
Post #1 says:
"Burned an MP3PRO CD with Nero V7. Works fine in the Vette CD player. Got 19 Audio CDs worth of tunes on 1 MP3PRO CD."
Post #3 says:
..."With MP3PRO at the highest quality level, I was able to get 19 audio CD tunes on one MP3 disk."...
Just getting a check-up from the neck-up...
I am not knowing I have to assume #1
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Team Owner
Joined: Feb 2000
Posts: 53,527
Likes: 77
From: Arizona
http://www.mp3prozone.com/products.htm
I don't see our CD player supporting this format.
I don't see it listed in the manual.
Are you sure that the 'pro' part of the mp3pro isn't just being ignored?
I'm all ears on this one...
I don't see our CD player supporting this format.
I don't see it listed in the manual.
Are you sure that the 'pro' part of the mp3pro isn't just being ignored?
I'm all ears on this one...
Thread Starter
Racer
Joined: Jul 2002
Posts: 474
Likes: 1
From: Wake Forest NC
Clarification
My first, not second post was correct. I got 19 audio CDs worth of tunes on one CD-R using MP3 PRO format with Nero V7. That's 19 directories with just under 255 MP3 files. I bought V7 some time ago but the first release was full of bugs so I waited about 6 months to get the latest updates. One of the options in the audio section is to convert audio CDs to audio files. One of the output formats is MP3 Pro so I used that one and chose the highest quality. I noticed that the output *.MP3 files were a lot smaller than normal MP3s. I had never heard of MP3 Pro so I did a search. The info below is from mp3prozone.com. I converted a bunch of audio CDs and burned the MP3s to a normal CD-R. I tried it in the Vette and it played fine and the quality seems OK to me. I did a search on the Roxio site, but couldn't find any reference to MP3 PRO. As HOONOSE indicated the information below indicates that a normal MP3 player will ignore the pro part so that may be what's happening, but as I indicated, the sound seems fine to me.
Why mp3PRO Technology?
Listening to music compressed with mp3 at 128 kbps sounds great. But if you go to lower bit rates the great sound starts lacking the high frequency components. At bit rates of 64 kbps and below the music may begin to sound dull. The reason is that mp3 at these bit rates runs out of bits to compress the music in full audio bandwidth and with significant detail. In this situation the developers of mp3 had to decide whether their codec should produce mp3 music with distortion (so called "coding artefacts") or with limited bandwidth. They opted for limited bandwidth. And as a result, you experience lower bit rate mp3 as band-limited music with just a few distortions.
What is mp3PRO Technology?
To improve the sound quality of mp3 at lower bit rates, Coding Technologies has developed an enhancement technology that gives back the sound the high frequency components. The technology is called "Spectral Band Replication" (SBR). SBR is a very efficient method to generate the high frequency components of an audio signal.
More Details
Combining mp3 with the SBR enhancement technology generates an audio signal with high bandwidth at low bit rates. mp3PRO, the resulting audio format is composed out of two components, the mp3 part for the low frequencies and the SBR or "PRO" part for the high frequencies. Since the "PRO" part requires only a few kbps, the format could be done in a way that it is still compatible with the original mp3 format. This fact allows existing mp3 players to play mp3PRO files. They simply ignore the PRO part. The only requirement is that they also have to support sampling rates of 16, 22.5 and 24 kHz along with 32, 44.1 and 48 kHz. While all (mp3 standard compliant) software players fulfil this requirement, not all portable and CD/DVD players do. To learn whether your mp3 player is capable to play mp3PRO files, please check with its manual or manufacturer.
Why mp3PRO Technology?
Listening to music compressed with mp3 at 128 kbps sounds great. But if you go to lower bit rates the great sound starts lacking the high frequency components. At bit rates of 64 kbps and below the music may begin to sound dull. The reason is that mp3 at these bit rates runs out of bits to compress the music in full audio bandwidth and with significant detail. In this situation the developers of mp3 had to decide whether their codec should produce mp3 music with distortion (so called "coding artefacts") or with limited bandwidth. They opted for limited bandwidth. And as a result, you experience lower bit rate mp3 as band-limited music with just a few distortions.
What is mp3PRO Technology?
To improve the sound quality of mp3 at lower bit rates, Coding Technologies has developed an enhancement technology that gives back the sound the high frequency components. The technology is called "Spectral Band Replication" (SBR). SBR is a very efficient method to generate the high frequency components of an audio signal.
More Details
Combining mp3 with the SBR enhancement technology generates an audio signal with high bandwidth at low bit rates. mp3PRO, the resulting audio format is composed out of two components, the mp3 part for the low frequencies and the SBR or "PRO" part for the high frequencies. Since the "PRO" part requires only a few kbps, the format could be done in a way that it is still compatible with the original mp3 format. This fact allows existing mp3 players to play mp3PRO files. They simply ignore the PRO part. The only requirement is that they also have to support sampling rates of 16, 22.5 and 24 kHz along with 32, 44.1 and 48 kHz. While all (mp3 standard compliant) software players fulfil this requirement, not all portable and CD/DVD players do. To learn whether your mp3 player is capable to play mp3PRO files, please check with its manual or manufacturer.
Last edited by routesixtysix; Nov 22, 2006 at 09:54 AM.