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Seems to be just what you want: What exactly can mpTrim do for you? • mpTrim can trim MP3s - removing silent or unwanted parts.
I used Windows sound recorder to record 60 seconds of silence through an input that wasn't in use, so that means I had zero noise, just a silent wav file. Unfortunately Windows sound recorder only allows 60 seconds of recording time, so my radio repeats the same track after 59 seconds and pauses for 2 seconds during repeat. In this way, the payback speed will match the recording speed and the file will sound normal. In order to reduce the file size, you must reduce the number of bytes being stored in the file. You can accomplish this in one of three ways. First, you can have a mono file (single channel) instead of a stereo file (two channel).
![Silent wav file for 1 second chrome download Silent wav file for 1 second chrome download](http://2.bp.blogspot.com/-TYYYMmx2gYw/U1D5DAtSQsI/AAAAAAAAA1A/hPZxPe4AVlM/s1600/Screenshot+from+2014-04-18+15:32:01.png)
• mpTrim can adjust the volume of MP3s. Volume change can be manual or automatic (volume normalization). • mpTrim can fade-in/out MP3s (to fix abrupt beginning/ending). • mpTrim can clean-up MP3s and recover wasted disk space. • mpTrim keeps the music quality intact, no matter how many times you process an MP3, because it works directly in the MP3 format without having to decode/re-encode. That also makes it very fast.
MpTrim is free - no evaluation period or time limit. I'm just not sure about it having batch capabilities. Mp3 trim works like a charm, but the free version only allows you to do one file at a time. A real pain if you have tons of stuff, trust me, your arm will ache. Just for the fun of it I downloaded a whole whack of Karaoke mp3 and most had 13 seconds of silence at the end and the beginning. Had to stop editing after awhile, just to much stress on the arm doing this after awhile.
Only got a few now and then, use it. I saw a post at MP3 direct cut and somebody stated the only way software can automatically detect silence is if you use a cue sheet. Duh, mp3 trim has the option to find silence auto – user103968 Nov 3 '11 at 10:45 •. In Audacity there's a Nyquist plugin called Trim Silence, download it here: However, it can't be used for batch processing:-( This effect requires Audacity 1.3.8 or later.
Although you cant batch process them you can import many files at once as if you are working on a multi track project, then process them with this plugin and finally re-export them as separate files. To do this follow the following menu options after ensuring the Trim Silence plugin is installed properly. 1) File - Import - Audio (choose files to process) 2) Effect - Trim Silence (set options) 3) File - Export Multiple (choose options for saving files).