<div>
Excellent, thank you, MASQ.<br />
<br />
Exactly what I needed.
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Excellent, thank you, MASQ.

Exactly what I needed.

<div>
Hi Gordon,<br />
<br />
I use an excellent commercial product called Total Recorder:<br />
<a href="http://www.highcriteria.com/" rel="ugc">http://www.highcriteria.com/</a><br />
<br />
The Professional Edition (<b>not</b> the Standard Edition) has the ability to insert a file anywhere in another file:<br />
<br />
<a href="https://filedb.experts-exchange.com/incoming/2015/07_w28/922532/Total-Recorder-insert-file.jpg" target="_blank" title="Total Recorder insert file (111 KB)"><img alt="Total Recorder insert file" class="file-block lazyload" style="max-width: 558px;" data-src="https://filedb.experts-exchange.com/incoming/2015/07_w28/922532/Total-Recorder-insert-file.jpg" /></a><br />
So you would record your additional 20 seconds in a file and then insert that file at the beginning of the other file.<br />
<br />
Total Recorder Professional Edition is not free, but is <a href="http://hcserv1.highcriteria.com/Scripts/general/purchase.asp" rel="ugc">reasonably priced</a>, imo, at $35.95 USD. I've been using it for all of my recording needs for many, many years — fantastic piece of software. As a disclaimer, I want to emphasize that I have no affiliation with this company and no financial interest in it whatsoever. I am simply a happy user/customer. Regards, Joe
</div>


Hi Gordon,

I use an excellent commercial product called Total Recorder:
http://www.highcriteria.com/ [http://www.highcriteria.com/]

The Professional Edition (not the Standard Edition) has the ability to insert a file anywhere in another file:

Total Recorder insert filehttps://filedb.experts-exchange.com/incoming/2015/07_w28/922532/Total-Recorder-insert-file.jpg
So you would record your additional 20 seconds in a file and then insert that file at the beginning of the other file.

Total Recorder Professional Edition is not free, but is reasonably priced [http://hcserv1.highcriteria.com/Scripts/general/purchase.asp], imo, at $35.95 USD. I've been using it for all of my recording needs for many, many years — fantastic piece of software. As a disclaimer, I want to emphasize that I have no affiliation with this company and no financial interest in it whatsoever. I am simply a happy user/customer. Regards, Joe

Total-Recorder-insert-file.jpg

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Thanks, Joe<br />
<br />
This looks good, too
</div>


<div>
You're welcome, Gordon. Happy to help. Regards, Joe
</div>


You're welcome, Gordon. Happy to help. Regards, Joe

<div>
You might also want to consider Goldwave.
</div>


You might also want to consider Goldwave.

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<div class="content wysiwyg-content">
I need to add about 20 seconds of voice to the start of an MP3 recording without deleting any of the existing recording. <br />
<br />
How to do this, Experts, please?
</div>
</div>


I need to add about 20 seconds of voice to the start of an MP3 recording without deleting any of the existing recording. 

How to do this, Experts, please?

Extending the length of an MP3 file

Multimedia programming is the process of developing multimedia products, programs or services that combine text with sounds, pictures, graphics, video-clips, virtual reality, digital animation and other forms of media, and generally requires skill sets that include programming languages such as Java and C++, graphics, animation and video production.

Multimedia Programming

Digital audio is technology that can be used to record, store, generate, manipulate, and reproduce sound using audio signals encoded in digital form. Following significant advances in technology, digital rapidly replaced analog audio technology in most areas. Digital audio systems may include compression, storage, processing and transmission components. It is important to distinguish between the audio coding format, the codec performing the encoding and decoding of the raw audio data, and the container file. Common file formats include .wav, .aiff, .au, .m4a, .mp3, .wma, .ra and .raw.