squeezing 90 mins of audio onto a cd

[yoda313]

You mean burn data files of mp3's with a standalone unit?? I don't think a thing like that exists. Most would be strictly dvd video burners or audio music burners (standard 80minute cd recorders not mp3 based).

[vitualis]

You will definitely get Chipmunks effect in the pitch. "Pitch" is the word used earlier to define the frequency of the audio. If you are trying to squeeze the same amount of playback into a shorter duration, definitely the audio frequency (and therefore the pitch) would go up. Don't even think of trying it.

I think you are all missing the point of the original person who suggested that this may be an option.

With the appropriate software, you can speed up or slow down a section of audio but to preserve the pitch - so that you don't get the "chipmunk" effect. Unless you listen to two things side by side, most people won't actually notice audio that is sped up by a few percent.

Regards.

[moviebuff2]

From 90 minutes to 80 minutes, this represents a reduction of speed (or tempo) of +11%. Imagine each song now lasts only approximately 90% of the intended length. To me, that's significant.

[FulciLives]

devdev here again

Yes i'm a little confused but dead grateful for the quality of contribution/debate - thank you all

is there such a a thing as non software version of a mp3 recorder of cds then that could possibly work with the 80 min cdrs? ie like a dvd recorder?

ADS makes the ADS Instant Music which is a computer device.

This small "box" connects to your computer via the USB port. You can then connect any audio source to it and it will record to your computer in MP3 format. After that you can burn to a CD-R disc and thus create a MP3 CD-R that any MP3 capable CD player can play.

This seems to me as though it would be the easiest way to go about it.

Just make sure you use CBR encoding when doing MP3 and try to use a bitrate of at least 192kbps or higher.

If my math is correct then a standard 700MB/80min CD-R can hold something like 7 1/2 hours of MP3 music at 192kbps ... even if you use the highest bitrate that MP3 can use (which is 320kbps) you are still talking about 4 1/2 hours per CD-R disc.

- John "FulciLives" Coleman

[moviebuff2]

Hi everyone:

I would like to demonstrate how a 10% reduction in speed (not pitch) affects an audio recording. Please listen to the 2 audio clips below. They are the same piece, except one was digitally adjusted to be 10% shorter than the other. The pitch stays unchanged.


Original: http://20-248-a.onlinestoragesolution.com/ciaobellavn/public/sonatine%20-%20unchanged.mp3


Changed: http://20-248-a.onlinestoragesolution.com/ciaobellavn/public/sonatine%20-%20changed.mp3


Cheers



p.s.: btw, this is homemade , no copyright violation here.

[FulciLives]

Hi everyone:

I would like to demonstrate how a 10% reduction in speed (not pitch) affects an audio recording. Please listen to the 2 audio clips below. They are the same piece, except one was digitally adjusted to be 10% shorter than the other. The pitch stays unchanged.

Original: http://20-248-a.onlinestoragesolution.com/ciaobellavn/public/sonatine%20-%20unchanged.mp3

Changed: http://20-248-a.onlinestoragesolution.com/ciaobellavn/public/sonatine%20-%20changed.mp3

Cheers

p.s.: btw, this is homemade , no copyright violation here.

I just downloaded them and not knowing what this music is ... I can definately tell a difference between the two.

I can only imagine that the difference would be even more noticeable with music that I know well.

Definately not at option at least not at a change of 10%

Think of it this way ... PAL video is a 4% speed up from NTSC/FILM and it is barely considered acceptable.

In fact I recently got a PAL DVD of a documentary with narration by William Shatner and the 4% audio speed up was killing me because the William Shatner "dramatic pause for effect" was killed by the 4% speed up (plus it didn't help that I have the same documentary on NTSC VHS and have watched it many times with Mr. Shatner and his pauses at the correct speed). In short even a 4% speed up was enough to destory his performance.

- John "FulciLives" Coleman

[yoda313]

In short even a 4% speed up was enough to destory his performance.

Funny I thought it was just him that destroyed his own performances (sorry for going offtopic I couldn't resist a jab at Shatner )

[FulciLives]

In short even a 4% speed up was enough to destory his performance.

Funny I thought it was just him that destroyed his own performances (sorry for going offtopic I couldn't resist a jab at Shatner )

"I ... have had ... enough ... of ... you !!!" - William Shatner as Captain Kirk in Star Trek III



- John "FulciLives" Coleman

[rebarlow]

You are not helping either.
If your burner and software recognize 90 minutes
available....it is NOT overburning. Both my burner
and software recognize 90 minutes available and I
have never used the overburn option to create my
CD's.

I have the 90 Min CDRs, but my software/burner does not recognize them as 90 minutes. I have two questions:

1. Is the failure to recognize the corret disk size a problem with the recorder or software or both?

2. If I can't get the system to recognize the proper size, is there any problem with setting it for overburn? i.e. is there any quality difference between setting for overburn and using a "standard" burn for a 90 min CDR?

Thanks,

REB

[hech54]

I have the 90 Min CDRs, but my software/burner does not recognize them as 90 minutes. I have two questions:

1. Is the failure to recognize the corret disk size a problem with the recorder or software or both?

2. If I can't get the system to recognize the proper size, is there any problem with setting it for overburn? i.e. is there any quality difference between setting for overburn and using a "standard" burn for a 90 min CDR?

Thanks,

REB

1) The more and more I read replies(like yours and others)....I'm willing to bet that it is the
burner's fault first....then software. Someone here even mentioned using Nero with his LG burner...and no mention of overburning with complete success.
2) I also think...in my opinion...that "overburning" is what creates the unplayability in any CD-R....including discs that have a smaller capacity than 90 minutes/800MB...since overburning infringes apon the lead-in (and maybe lead out?) data required by CD players.

Again...the only drive manufacturer that has in the past ever specified that their particular drive will in fact read larger sized CD's properly is LG. The only drive manufacturer that I have ever seen that specified that their drive will NOT read larger sized CD's is Pioneer. The rest of the drive manufacturer's specs simply do not mention anything about it....so we are left to chance/guess.
If you are dead-set on burning 90 minute CD-R's...get an LG. Both my old 4040B and my 4167B read them correcctly....and according to oldfart...his 4163B burns them with Nero.
I burn mine with Prassi Ones.

[rebarlow]

Hech-

Thanks for the quick reply. If need be, I probably will try changing out my burner.

REB

[hech54]

You can still find some new 4040B's out there REAL cheap....leftovers and such. LG drives are not expensive anyway....however the 4040B is only 4x and no bitsetting...and single layer only on DVDR.
BUT...a bit hard to find in America from what I've read.

[rebarlow]

Just as a follow-up-

I have never been able to get my lite-on/nero combo to recognize the 90 minute discs, but have used overburning up to nearly the full 90 min with success. So far every audio disc I've burned has been playable to the end, even in my car player. Overburning may be a sloppy kluge, but it seems to work for me...

Thanks for the input

[hech54]

Oh...and my new LG 4167B also recognizes 90 minute CD-R's....just for more info.