Name: MP3 Trimmer
Price: 12.95 $
Rating: 4.1667 (5 reviews)

Sadly no longer works with 10.14.6 Mojave. Saved files are not trimmed.

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I've loved this app for many years, however, because it has never been updated to support 64-bit processors, it will not run on the new Mac OS Catalina (version 10.15), and therefore I can no longer use it on my MacBook Pro that I upgraded to the beta. I can at least still run it on my old 2009 iMac (which Apple cut off OS upgrades for after High Sierra) if needed, although I frankly don't really use MP3 Trimmer anymore since Apple took away the ability to create your own ringtones in IOS, so this post is mainly just an FYI to others reading these comments.

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chris-com

31 March 2019

Version: 3.0

Version 3.3 has been out since June 29, 2017.

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MP3 Trimmer is still indispensible. I use it to combine Audiobooks into longer chapters as well as trimming out snippets from longer recordings. MP3 Trimmer on my Mac is v3.3 not the v3.0 currently shown here.

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Useful. Edit MP3 files with no quality loss

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Mikael-B

17 July 2017

Version: 3.0

This seem to be working in OS X El Capitan 10.11 at least and does seem highly useful for some mp3 editing. Sadly there is no automated function for removing the initial silence in mp3 encoded files (which might be hard to achieve), no zooming to speak of, no reverted polarity, no paste mixing and so on., Off little use to me unfortunately.

Nice to see it's still around.

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It's a brilliant app unfortunately totally unsupported. No answers to repeated emails over weeks. Registered and got 1 day out of it. Can't give it stares because I can't use it.

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Simple and beautiful!

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v2.9.6 Caused some freezing on Lion requiring Force Quit. No data was lost however. Worth the price

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MP3 Trimmer has many features, it's very easy to use, it is excellent value, and, it's as stable as a rock. MP3 Trimmer joins multiple MP3 files. AHP2 recorded a 4.3 hour event, but it broke the recording into two parts. MP3 Trimmer has "MP3 Joiner". Open MP3 Trimmer, select "Tools">"MP3 Joiner", add files, check the order, add as much or as little info as desired (for the output file), select "Select Target Folder" and name, and, a few moments later, you have a single (joined) MP3! If you do any audio editing, MP3 Trimmer is a must have.

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When I used this great app for the first time, it always showed CRC errors after saving a trimmed MP3 so that I thought the file is not saved at all. But it is saved! And functioning! You can ignore the CRC errors. But: For the next version I wish some more words in the error message saying that this can be ignored.

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Love this app. Works great with all the textbook audio I have to manage. The recent version 2.8.8 is shown as version 2.8.9 in the Get Info window and the About MP3 Trimmer window.

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I must apologise for the inaccuracy in my review (see below). MP3 Trimmer DOES have switchable fade algorithms (I didn't realise the icons are switches). Awesome. I've been editing out the dialogue and announcements from the music podcasts I subscribe to and the app is perfect. Great drag n drop too...

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This is a very efficient app for top and tailing mp3s and adding auto-fades. It's entirely intuitive, quick in operation and a great solution. Highly recommended. As a feature request I'd like to see some switchable auto-fade algorithms. The algorithm in use is a bit linear, and not very natural (ie. the tail is too long) at short settings. That addition would make this app perfect.

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After trying a few mp3 joiners, this one is the best. Slick interface, works as advertised.

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I've used this wonderful app since almost it first hit the Mac's desktop. It is the best utility for cropping MP3s and joining multiple MP3s into one file. Despite its quirks it is still the fastest and most straight forward method of doing this. Fission has some good features because it is more visual and handles other audio formats, but MP3 Trimmer seems less sluggish and certainly less confusing. You can never be sure where a drag and drop ends up in Fission and once it is in there is no clue as to the original file. A few draw backs. The Joiner scrambles the file order when dragged from List view, you need to drag from column view. Reordering within join is clumsy. The joiner also hides the file name whilst joining and needs to be closed and reopened for every join. There is really no way to batch process. files.

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Seriously underrated app. There's nothing else like it for the Mac. I've managed to rescue many garbled MP3 downloads using the repair options. Fantastic!

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I love this program. It's perfect for cutting tracks as ringtones.

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Trimmer 2.6 is another step up for this great app. I used it to edit my streaming radio recordings. It is a good fit in ease-of-use, interface design, and a perfect companion to my 4GB nano.

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I Like It! Does it's thing nicely, though i've found more use for it's joining capability than trimming.

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This is an excellent pro-looking and neat application, it does what's supposed to do and a little more, plus being pretty fast.

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This is a great app. A a registered user it has saved me, literally, hundreds of dollars because it has enabled me to trim the mp3 files that I have converted from the 70 or 80 cassettes that I own, as opposed to repurchasing them in CD format. Coupled with QuickVoice (to convert the cassettes to mp3 format), you have an unbeatable combination.

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I wanted to cut and trim some MP3 to use as sounds for my cell phone ( Sony Ericsson P910i ) . this program is wonderfull, it works like a charm, and its cheap !

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Very easy to use and full featured. And affordable!

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I miss a graphical waveform with editing functions displaying the mp3 file. Nice app though!

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really nice, simple and usefull tool... i buy it!

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Good application and a developer who listens to customer feedback. Some of my suggestions have been implemented in this latest version... :) Thanks, deepNiner!

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Overall, a very useful program. It has a simple, straightforward interface and it's a program that does what it says, namely, trim MP3's. I needed to edit and trim some files and this little jewel is well worth the price. It's a good little utility to have in one's 'toolbox'.

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A great program, and I was looking forward to upgrading to v2.1, but does anyone know what has happened to "deepNiner.net"? The web site has disappeared since v2.1 was announced.

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Great programme, all I wanted was something to split a large mp3 file up into smaller ones of different sizes. Mp3 Trimmer has all the features you need, and it's relatively easy to use. GOod stuff.

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Trimmer 2.0 has jump to another level. Better interface, enhanced tools, and integrated help. One of the cool app residing on the Mac for sure. Now I can truly enjoy my music. Thanks.

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I don't know about this version, but version 1.5.6 results in a surefire system bomb on a G3 beige, OS 9.2.2. I also agree with the wave view option. That makes it a lot easier to spot the gaps in multiple tracks.

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This is a great little program. Coupled with nfinity's QuickVoice you can convert cassettes or records to mp3's, saving money on replacing them with CD's.

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Like some other users I find that Audcity (which is free) is better. The encoding for a average song (3-5 minutes) takes about one minute. I can spare two minutes, exspecially when Audacity does so much more and for free. Not to mention it supports the open source community.

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What does this do that QT Pro doesn't with all Mac compatible audio formats (and then some)?

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I've tried this out on a couple of files and it is definitely worth the $5. I've used the free Audacity editor and while that works very well and it provides a visual waveform, I've found that MP3 Trimmer is simpler and works faster. Audacity requires to to first import the MP3, make your edits and THEN export the files, wasting valuable minutes. It would be nice in future versions to provide a visual waveform to make it even easier to trim files, but as it is now it is a fine program.

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I registered MP3 Trimmer at version 1.1, after trying version 1.0 for a while. I have found it stable and very useful. (I had several requests, but developer implemented most before I could email. ;) I am very satisfied, and at $5, it is a good value, and is not going to break your bank. v1.1.1 is again an improvement on 1.1.0

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MP3 Trimmer3.3

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