MP2 audio editor ....

[Washka]

I need one simply program that will edit *.mp2 audio file without decode to wav file and encode back to mp2. exmpl. Maximize volume...
If some of older members remember Radium has release in `98 or `99 one DEMO of that kind of application, so if someone know that name or some another brand new program who can do that, it will be very nice... :)

I just have lot of MP2 audio files streamed from digital sattelite and most of that song`s volume is too quietly.
I don`t need program like Sound Forge or Wave Lab, that`s not that type of program... :(

Thanx....

And sorry for bad English

[jorel]

hy Washka,
welcome in forum!
:)

i remember Radium(wonderfull guy,i miss him)
and i have some Radium things but don't remeber this prog...
did you remember the name(or seamless)?

i want to know how edit mp2 without re encode too!

[Washka]

@Jorel

I think I found something!!
On this link http://mirrors.fct.unl.pt/users/jprf/AppzALL.txt
ther`s only a list of old program If you can remmember some of them please tell

I found it but this only can cut from beggining and from end
Mayah.EditPro.MP3.v2.2-Radium
http://www.mayah.com/content/download/programs/software/editpro.zip
This is EDIT PRO 2.04 DEMO
Link is still alive !!! from 2000.
http://www.mayah.com/content/download/software.html#download

So We need another progy. So still searching...

[b00zed]

You can cut and join MPEG-1 audio layers with varying degrees of success, but afaik any editing beyond that requires them to be decoded to their waveforms. I'm sure there are programs out there that could decode the bits you wanted to edit, then encode them once they've been edited and insert them back into the file, but I don't understand the compression methods enough to know whether this will completely mess with the stream or not.

Either way, you can't do standard editing directly to encoded material; you have to decode it to listen to it so I would expect the same to be true for editing.

[TheJez]

In fact, it IS possible to do a certain degree of editing on encoded mpeg audio without conversion to wav. Remember it's just audio data, but then layed down in a different format. In fact, it is very easy to perform equalising functions, because the audio data is stored in frequency spectrum i.s.o. the amplitude spectrum as in wav-files. Also amplitude adjustions (e.g. normalise, fade-in, fade-out) are quite easy: It's just changing the levels of all frequencies evenly.

Cutting & pasting is more difficult, because the audio is stored in chunck (frames). So you can only cut&paste on frame-level (which is about 11 millisecond units, I believe). Most of the times, this is accurate enough, though. If better accuracy is required with cutting&pasting, then the only way is mp2->wav(+edit)->mp2.

Mayah EditPro seems to do these things. See http://www.mayah.com/content/products/images/editpro30.jpg for a screenshot. I never used it though...
I have been working with a very old program DCCStudio (works only on Windows 3.11 !!!), that came with my portable DCC recorder. DCC is a digital compact cassette that is used to record/play mp2 audio. This application can be used to 'rip' the audio from tape to harddisk, do some editing (volume levels, fade-in/out, equalising, cut&paste) without decoding/encoding, and optionally write the audio back to tape.

Best wishes,

The Jez

[Imperial Llama]

I use MP3DirectCut (which is free) to edit my mp2 files I record from digital radio:

http://www.rz.uni-frankfurt.de/~pesch/

You can then use BeSplit to normalise the mp2 file. The command line to do this is:

besplit -core( -input input.mp2 -output normalised.mp2 -type mp2 ) -ota( -G max )

[DSPguru]

Originally posted by Imperial Llama
I use MP3DirectCut (which is free) to edit my mp2 files I record from digital radio:

http://www.rz.uni-frankfurt.de/~pesch/

You can then use BeSplit to normalise the mp2 file. The command line to do this is:

besplit -core( -input input.mp2 -output normalised.mp2 -type mp2 ) -ota( -G max ) well, you can use BeSplit to split the stream as well.

[Imperial Llama]

True, but I also use MP3DirectCut's graphical interface and playback facilities to help me find the time where I want to make the cut. ;)

[b00zed]

I had just read an article about JPEG compression, which involves a fair amount of encoding, and came to the conclusion that MPEG audio layers were fairly similar, (not the same, obviously, as we're talking about different media,) which may or may not be the case but it doesn't look like it if you can edit the data without decoding it...

In other words, thanks for setting me straight TheJez :)

[Washka]

Hmmmm... Great, but cant "Can`t change volume of layer 2 files" :(
Too bad..... Anyway, great tool for MP3 files.

[DSPguru]

Originally posted by Imperial Llama
True, but I also use MP3DirectCut's graphical interface and playback facilities to help me find the time where I want to make the cut. ;) Cheers, no problems.
just to let you know that BeSplit also has a graphical frontend, called WBIAS (http://besplit.doom9.org).

BeSplit was the first tool to offer loseless gain modification of mp2 files, and as far as i know, it's still the only tool that does this.


note : i'm not trying to convince you to use my tool or change your habbits, i just want to give a broader picture, since, from my experience in past cases, whenever i didn't reply to those kind of threads, a common knowledge had become to think that my tools are lacked of this-or-that abilities.

[Washka]

BeSplit was the first tool to offer loseless gain modification of mp2 files, and as far as i know, it's still the only tool that does this.

[/B]

Hmmmm i read all txt files from BeSplitv0.82.zip and wbiasv081.zip but can`t find to adjust volume or gain. Is there any info on some site for that?

Thank you

[DSPguru]

http://forum.doom9.org/showthread.php?s=&threadid=60726

[pepipocpoc]

Hi everybody,

I'm looking for a prog to edit and join mpa (or mp2) files without reencoding the whole thing. At the moment, I use sound forge to open/edit/join, but I can't (or don't know how to...) save the new file in *.mpa... So I save it in *.wav, then use I-MediaAudio to reencode it to mpa.

Has anyone a suggestion to do?

10x

[pepipocpoc]

Hi everybody.

I've tried WBIAS and that's not what I need. Maybe I have to make myself more clear (excuse me, but I have been sent to this thread).

In fact, I would like to visually edit two mp2 files (extracted from 2 discs svcd with +/- 10secs overlap ; THAT's the prob). MP3Directcut seems to do that but the graphic is not precise enough ; Soundforge is very precise, but can't save in mp2...

So : does any of you know a prog that can visually edit mpa/mp2 files, or know a way to directly save in mpa/mp2 under sound forge?

10x


Today's (approximate) saying :
to be the best, one sometimes just needs the others to be worst.

[Washka]

@DSPguru

Thanx
I think this is what I want...:)

http://forum.doom9.org/showthread.php?s=&threadid=60726

I`m on work now, and don`t have speakers attached on my comp but will try at home !!!

[mudda_t]

Expstudio's Audio Editor will let you do exactly what you want. It's an excellent program. (link (http://www.expstudio.com/audioeditor.htm))

It supports:

WAV PCM
compressed WAV (ADPCM, GSM, DSP, A-LAW, U-LAW, ALF2 and others)
MP2
MP3 (MPEG Layer-3)
VOX (Dialogic ADPCM)
WMA (Windows Media Audio)
RAW (PCM, A-LAW, U-LAW)
CDA (Audio CD Tracks)
OGG (Ogg Vorbis)
G.721, G.723, G.726

[DSPguru]

Originally posted by mudda_t
Expstudio's Audio Editor will let you do exactly what you wantare you sure that this tool doesn't decode the mp2/mp3 streams before editing.. ?

[Washka]

Originally posted by DSPguru
are you sure that this tool doesn't decode the mp2/mp3 streams before editing.. ?

He he your` right.. he he he that program first decode than edit and reencode back to MP2.. If you have 192kbps MP2 than by default program encode to 128... Soo that`s not that what we need.. Now tryin g BeSplit and it`s working. And do little experiment with this tool.. he he GREAT.. Maybe it`s not so laud as should be.. But will see...

[Washka]

Simply GREAT !!!!

But is ther any GUI for that? To put MP2 files and click normalize and BeSplit do job...
Thanx :)

[mudda_t]

If you have 192kbps MP2 than by default program encode to 128
Thats because the default setting is 128kbps. Just click on FILE, then OUTPUT QUALITY, an output quality settings box will pop up, it will let you go up to 320kbps.
It can't get any easier then that. :D

[Washka]

mudda_t

I know that!! But read my FIRST post and you will see what we need..
BeSplit do Great JOB !!! without Reencode file!!! Thats very important to me..

[pepipocpoc]

Erm, excuse me to interrupt you, but nobody seems to bother what I need ; it's true that I was just moved to this thread, but anyway, I would really like to know if there is a prog that can visually edit mp2/mpa files without decompress-recompress steps... Sorry to insist.

[pepipocpoc]

Hi everybody,

the first times I asked this, I simply was moved to another thread, whitch doesn't really gave me answers. So here am I again.

Does anybody know a program that allows to :
-open a mp2/mpa file without decompressing
-visually edit (cut, join, BUT visually), with not-too-hard navigation
-save (without recompressing) directly to mp2/mpa

10x

[Washka]

Originally posted by pepipocpoc
Erm, excuse me to interrupt you, but nobody seems to bother what I need ; it's true that I was just moved to this thread, but anyway, I would really like to know if there is a prog that can visually edit mp2/mpa files without decompress-recompress steps... Sorry to insist.


See 3rd message on this page and check links!! Maybe it will help you.. But that program can`t Maximize MP2 or MPA just Cut, merge, fade in and out..

[pepipocpoc]

@Washka

thank you, but I did checked the links, and tried what they gave, and wasn't satisfied, and searched again, and started to loose temper... Thanks anyway.

[KpeX]

@pepipocpoc

There is no need to open a new thread. Noone is going to view that that didn't read this one. There are several links here for editing MP2. If those links don't satisfy what you're looking for, don't get mad at this community for trying to help you. There is a reason your posts were merged to this thread. We are not your paid tech support, and if you're unsatisfied with the programs you were directed to, do your own research and find a better one or write your own.

[pepipocpoc]

@KpeX

Sorry about all this ; I never intended to be rude to the community and most of all never ever thoughr you were a paid tech support. And, don't you think, if I was able to write such a program, would I ask for one?

No, no, please, don't misunderstand me, I'm just a bit lost, but nevertheless very thankfull to everyone.

By the way, I didn't thought about "No one is going to view that that didn't read this one"... Sorry about that.

[mudda_t]

Originally posted by Washka
without Reencode file!!! Thats very important to me..
I understand now, only other program I could think of is Acoustica Mp3 Audio Mixer. It allows you to import mp2, and as far as I could tell it doesn't reencode to wav. Only problem is it doesn't encode back to mp2, only lets you do mp3, wav, wma, realaudio. But in the ENCODE TO box (after you pick save destination) it allows you to pick an encoder engine. If one exists for mp2 I don't see why you couldn't use it.
Then again I'm still not sure if it reencodes to wav first.

Check it out and let us know.

[jorel]

i was searching for 3 days some prog to
edit mp2 without re encode the file...
can't found anything!

[pepipocpoc]

@jorel

Maybe BlazeMediaPro will do ; I'm not fully satisfied (navigation is not easy), and it's a 15 days trialware.

@anyone

any other suggestion? A soundforge mp2 plugin, perhaps?

pepipocpoc.

[Washka]

Originally posted by pepipocpoc
@jorel

Maybe BlazeMediaPro will do ; I'm not fully satisfied (navigation is not easy), and it's a 15 days trialware.

@anyone

any other suggestion? A soundforge mp2 plugin, perhaps?

pepipocpoc.

I try MP2 plugin, You can import MP2 audio and write it back to MP2 but WITH WAV file... or that you don`t need Sound forge... You can do that with Winamp :-))) With easy 2-3 click of mouse..

[pepipocpoc]

@washka

erm, sorry, but I don't quite understand. I know I can import mp2 with soudforge (that's the way I usually do it), but what do you mean "write it back to MP2 but WITH WAV file"? Is it that soundforge can save the edited file directly to mp2, or that you must save it as a wav file THEN use another prog to convert it to mp2 ? Tell me more, please.

Then, if I remember well (that's not granted), about, winamp, it can't do visual edit -you know, those nice tiny mountains :cool: - and that's precisely what I need... Plus an easy way to navigate along the file, adding marks, etc... Like in soundforge.

I will re-install winamp and try it again, but, really, if you could explain me more precisely what you meant, it may be of great help.

Many thanks

pepipocpoc

[pepipocpoc]

Argh. I thought Blaze Media Pro would be the prog I needed. But it has not the easiest way to navigate and add markers, and you shure need not to process anything else while it is working. I still need somebody helping me... Washka, I can only find one of the files you mentioned (.sfk)...

Please...

[Mug Funky]

wow... i honestly don't think there's anything out there that will do it.

heh. i love a challenge, but i'm not a programmer so unfortunately i can't help there.

tooLAME is GPL, no? i'm sure somebody could use that code as a springboard to some kind of proggie... but it's not outside the realms of possibility that you can't put gain on an mp2 losslessly. i don't know enough about the format to help there. but if it can be done in mp3 there's a fair chance.

[edit] aah. besplit DOES do it, but in commandline.

if you want to do it visually i suggest you use mp3directcut to find the places you want to amplify, write them down and feed them to besplit.

you'll probably have to cut the file into chunks and then join them. good luck... hehehe.

@ pepipocpoc:

if you're just joining 2 SVCD files and getting rid of the overlap, why not use TMPGenc's mpeg tools to do video and audio at the same time? i use it whenever avisynth goes bung in an encode and i have to join the good bit with the re-encoded bit.

of course then you have to worry aboot GOP cutting :D

[pepipocpoc]

Hello, Mug Funky, nice to meet you.

There are two problems about using TMPGEnc (at least with the files I'd like to deal with) :

- I got 2 audio streams
- Anyway TMPGEnc often don't recognize my files as compliant mpg.

But maybe I'm gonna try the way you suggest some more.

Beside, I've finally found a soundforge mp2 plug-in (thank to washka ;) ), but soundforge now crashes when saving too long files. I shure am doomed :mad: .

Today's wander :

Cinema allows to see 24 pictures per second ; photography allows to see 1 picture for 24 seconds.