Single mp3 file Options

[pizzetta72]

Hi all,
I have some mp3 related to live/concert music, and I would join together in a single file plus the relative .cue file, without gaps and recode the files.
I used the option in foobar 0.9.5.1 "Convert ---> Convert to album images with CueSheet" + using the crossfader DSP option with the default setting...But doing in this way, I need Encode again the files.

Do you know if exist another way without encode the files?

P.S.: All my mpe files are initially encoded at 225Kb, and I encode it using lame 3.97 set at maximum rate with the following settings: -S --noreplaygain -V 0 --vbr-new - %d
Is correct or I must modify my settings??

Many thanksfor your help

[greynol]

Based on the settings you've given, you won't be able to do this without re-encoding.

[WonderSlug]

Maybe MP3 Surgeon 2004 Pro Studio (for Windows PC).

You are supposed to be able to join/split/trim MP3s without re-encoding.

from the website:

Key Features of MP3 Surgeon 2004 Pro :

Edit Session saving for easy re-editing of MP3s
MP3 Catalog filtering tool
Windows XP look and feel on all PCs
Micro Zoom for accurate editing of your MP3s
Catalog your MP3 directories into Microsoft Excel
Automatic splitting of MP3s from a CUE sheet
Visual Waveform display for fast and easy trimming and splitting
Normalisation of all your MP3s to the same volume level
Split wizard for automatic MP3 splitting
Join multiple MP3s of any size together seamlessly
Support for ID3v1 editing and retaining ID3v2 tags
Automatic trimming and repair of damaged MP3s
No re-encoding needed and no quality loss from editing
Batch process entire directories of MP3s at once
Convert your MP3s to WAV files for CD Burning

I haven't actually used this product, but there's a free trial available.


Link to download site:

http://www.bestshareware.net/mp3-surgeon-2004-pro.htm

[greynol]

> You are supposed to be able to join/split/trim MP3s without re-encoding.

1) You cannot crossfade without re-encoding.

2) You cannot join two mp3s together and have them be truly gapless if the trailing edge of the encoded data in the first track does not coincide with a frame boundary (not including other potential issues such as a discontinuity in amplitude between the samples at the boundary).

If anyone wants to augment #2 please do. I'm certain that #1 is indisputable.

[pizzetta72]

> You are supposed to be able to join/split/trim MP3s without re-encoding.

1) You cannot crossfade without re-encoding.

You mean that if I split a live album in several mp3, when I need join in a single file, I Need always re-encoding all the file (if I need the crossfading)???
At this point is always better to rip alive album directly in a single file and then split the tracks. In this way the splitting doesn't re-econde the file, and I'll have both single and split files...Correct?

2) You cannot join two mp3s together and have them be truly gapless if the trailing edge of the encoded data in the first track does not coincide with a frame boundary (not including other potential issues such as a discontinuity in amplitude between the samples at the boundary).

If anyone wants to augment #2 please do. I'm certain that #1 is indisputable.

Also if I use EAC to rip with accurate settings and then burn with Nero using crossfading option set to -0,5 sec between tracks? In this way the re-encoding should be minimal or not?

[greynol]

You mean that if I split a live album in several mp3, when I need join in a single file, I Need always re-encoding all the file (if I need the crossfading)???

If you're creating a single-file mp3 image from individual mp3 files encoded separately, then yes, absolutely.

At this point is always better to rip alive album directly in a single file and then split the tracks. In this way the splitting doesn't re-econde the file, and I'll have both single and split files...Correct?

If you split a single-file mp3 image with a program like musiCutter or mp3DirectCut you don't have to re-encode. You can even put them back together to recreate the single-file mp3 image if you like as well since the process is lossless (for the audio data, at least).

Also if I use EAC to rip with accurate settings and then burn with Nero using crossfading option set to -0,5 sec between tracks? In this way the re-encoding should be minimal or not?

Re-encoding is not required if you're just burning mp3s to CDDA.

Considering they're encoded using Lame, I have no idea why you would want to crossfade. Gapless playback and decoding of Lame encoded tracks has been possible for quite some time now, though I don't know whether Nero is capable.

[pizzetta72]

Considering they're encoded using Lame, I have no idea why you would want to crossfade. Gapless playback and decoding of Lame encoded tracks has been possible for quite some time now, though I don't know whether Nero is capable.

I have only the final mp3 files, already ripped (I don't know how)...If I playback using foobar2000, between 2 tracks I listen the gap (because is a live album). Same problem if I'll try to join together in a single file. This means that probably this files are not ripped in the right way.
In order to remove the gap between 2 tracks, the only way that I found is using DSP crossfading in foobar or using mp3 editor software (mp3directcut, NeroWaveEdito...etc.etc), but at the end they obviously re-encode the file.

[kjoonlee]

Wouldn't it be possible to use per-frame volume changes (à la mp3gain) to perform volume fading? Instead of using a uniform gain value, you could vary the values over time.

This post has been edited by kjoonlee: Apr 21 2008, 16:04

[greynol]

In order to remove the gap between 2 tracks, the only way that I found is using DSP crossfading in foobar or using mp3 editor software (mp3directcut, NeroWaveEdito...etc.etc), but at the end they obviously re-encode the file.

mp3DirectCut does not re-encode.

Wouldn't it be possible to use per-frame volume changes (à la mp3gain) to perform volume fading? Instead of using a uniform gain value, you could vary the values over time.

mp3DirectCut has a fading function, but the OP is interested in crossfading.