How do I add a short introduction and conclusion message to my mp3 sound file

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Rodney

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before and after the file plays? I have recorded a lecture as an MP3 file. I now want to add short introduction and conclusion messages to the file. I want to allow about 2 second pause between the the short messages and my lecture message. I am not a 'techie' so please even the most basic of explanations would help to solve this problem.
 
You can use the free program called Audacity which can be found at audacity.sourceforge.net

install the program along with the lame mp3 encoder (which can be found here: http://audacity.sourceforge.net/help/faq?s=install&item=lame-mp3

It's simple to use and I'm assuming you have a mic of some sort to record your new messages that you want to add. Simply import the mp3 file of your lecture. Under the Project Menu, click import file and then select your mp3 file and import it.

To move around the audio file so you can insert pauses use the timeshift button which looks like this: <--->, to use it just click on the segment you want to move and drag it.

Since you want to insert 2 parts you'll need to record 2 new tracks. Just press the record button and it will record on a new track. It's hard to explain, but if you just try recording you'll see what I mean. After you are done recording the two tracks (one for your intro and one for your conclusion).

Use the time shift button to move your track with your conclusion to the end so it looks like this at the end:

http://img129.imageshack.us/img129/6452/96965423.jpg

Then export as an mp3 and your tracks will merge into one. To export as an mp3 go to File and export as an mp3 and then you're done.
 
there is a free audio editing program called audacity (just type audacity in google and you'll find it) you can import audio into the program, zoom in to the very beginning of your song, click generate and silence, insert two seconds and do the same to the end, then import your into and end into audacity, select the parts you wand and copy and paste them into the appropriate spots on the audio, then export it as a mp3, and there you go, hoped that helped, if you have questions send me a message.
 
Audacity:
http://audacity.sourceforge.net/
Lame if needed to encode to mp3:
http://lame.buanzo.com.ar/
Basic tutorial:
http://www.guidesandtutorials.com/audacity-tutorial.html

Record and save your introduction and conclusion as separate tracks.
All three parts need to be imported to enable mixing.
Use the time shift tool as suggested by Rei.
The result should look something like this. (Ignore the lines)

Intro track 1
____________Lecture on track two.
_______________________________ Conclusion track 3

Export and save via the file menu.

Any problems with Lame here's the help file:
http://audacity.sourceforge.net/help/faq?s=install&i=lame-mp3

The intended audience might dictate the file format you use if intending to burn it to disk for distribution.
The safest way in that case is to export to wav format and burn in that format to disk (CD-R). If a recipient only has an older CD player for playback it will be recognized and play whereas an mp3 disk will not.
 
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