You can use lame with the –mp3input option. For example you can do a downsampling of the mp3 quality, specifing the a new lower bitrate using the -b option. Welcome to , a friendly and active Linux Community. You are currently viewing LQ as a guest. By joining our community you. The shuf command (part of coreutils) can do this: shuf -n file. And at least for now non-ancient versions (added in a commit from ).

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I’m not above using windows to do it but Linux preferred. But I’m guessing downsampling could potentially downsaple artifacts if not done properly. If you want to print p out of the first n lines of the file which has potentially more linesyou’d need to stop awk at the n th line like: Further details on how to downsample a video in Ubuntu can be found on the always helpful AskUbuntu.

The first one shrinks the image to x pixels. Increase podcast bitrate and sampling.

Batch Resize Images using Linux Command Line and Imagemagick

Sign up using Email and Password. It won’t get you 10k lines out of a million but it might be close enough for most practical purposes. ImageMagick downsampke convert multipage PDFs. Hoewever, extension to other tasks is simple and I might treat it in future posts.

Playing with Bitrate and Frame Rate parameters might be an option, but if you are not expert you might end up with a very low quality video. It adds two context menu items in nautlius so you can right click and choose “Resize Image”. To find out more, including how to control cookies, see here: I know I can always write a python script to do so but just wondering is there a command for this usage.


ImageMagick can apply a variety of effects to an image. The following command takes an image named howtogeek. I use CamScanner to digitize receipts and invoices for entry liux accounts FreeAgent.

How to reduce the size of mp3s in linux? – Stack Overflow

How to reduce the size of mp3s in linux? Joinsubscribers and get a daily digest of news, geek trivia, and our feature articles. And at least for now non-ancient versions added in a commit fromthat will use reservoir sampling when appropriate, meaning it shouldn’t run out of memory and is using a fast algorithm.

From memory, GMail provides over 10MB per email. You can also use the compress option there’s an example here: How about compressing as JPEG?

[SOLVED] Down-sampling/re-sampling flac files

Home Questions Tags Users Unanswered. Atropo 9, 3 33 Seems like my “downsampling” was due to omitting density Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Click on it Figure 2. Find More Posts by ph73nt. I know that there’s programs such as NitroPDF and Acrobat that allow you to accomplish this, but I’m afraid it would have to be done on a donwsample basis. Do vownsample have a non-sensitive sample file we could play with? I’ve clarified it a bit more following your llinux. I have audacity but i don’t think you can use it purely as a command line tool can you?


Thanks, I assumed too much in my first answer. I have made the edits per question.

Best way to downsample audio [Linux]

downsampke You can save the follow code in a file by example randextract. How to easily resize images via command-line? Review your favorite Linux distribution.

So good alternative to making compression is using gs from package ghostscript example of usage:. So, you could easily just do the following to use head as you requested:. ImageMagick can quickly perform operations on an image from a terminal, perform batch processing of many images, or be integrated into a bash script.

Command line just As you indicated: The users who voted to close gave this specific reason: That’ll almost certainly be impossible to tell for sure. Join our community today!

For instance, a file contains one million lines, and we want to randomly sample only one thousand lines from that file. For random I mean that every line gets the same probability to be chosen and none of the lines chosen are repetitive.