Is voice over batch recording possible with Audacity?

Hello everyone,

I have a small Mp3 website and would like to protect all my commercial mp3s with a voice over sounds like many sites are now doing to protect their loops or samples.

For example, when the user clicks on the “Listen” button, the music starts with a female saying “Demo” every 4 or 5 seconds.

I would like to know if there is a way to import all my mp3s in audacity and do a voice over batch editing all at once?
The problem is that some songs will be longer than others, therefore the female voice has to stop exactly when the song stops.
I cannot find a single software on the net which can do that, any idea if Audacity is capable of doing such work?

Thank you!


Probably your most serious problem is re-editing MP3. You can’t. Audacity converts MP3 to a high-quality internal sound format and then back to MP3 when it’s finished editing. MP3 compression sound damage (gargling, bubbling) goes way up when you do that. MP3 is a terrible production format.

Even “MP3 Editors” won’t be able to help you. They’re limited to very simple effects like cuts and some volume control. You’re task is completely re-editing, filtering, and producing your tracks. Do you have all your original master WAV files? That might work.


I can’t think of any way to do that with Audacity.
Do you have a budget for paid software for the job?
How many files are you talking about?
Do you have the female voice recording yet?
As Koz points out, mixing in your “watermark” with the MP3 tracks will lower the sound quality of the MP3s. If you have the original uncompressed (WAV) files, then to preserve the sound quality the watermarked MP3s should be made from (copies of) the original uncompressed versions.

Alternatively, you could just offer low quality versions (low bit-rate MP3s) for free download and charge for the high quality versions. This has the added advantage that the low quality demo versions will be quicker to download, but has the disadvantage that the potential customer can not hear how good the real versions will sound.

disadvantage that the potential customer can not hear how good the real versions will sound.

Unless you include a high quality sample clip for comparison and promotion.


Just my two cents on tactics, coming from someone who’s bought sound clips before (for film production). I’d prefer low-quality clips as samples but where there’s one sample that compares low and high quality. The customer can always use his imagination as to how the high quality is going to sound when there’s a benchmark, even when there’s no high-quality demo for each clip.