• June 17, 2019

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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Try the different settings, maybe convert it to monosee what produces still acceptable results for you. Ask Ubuntu works best with JavaScript enabled. I am the author of the recommended software.

JPEG would’ve been fine, but I need to upload multi-page documents and I can only have one attachment per account entry. I use CamScanner to digitize receipts and invoices for entry into accounts FreeAgent.

I know I can always write a python script to do so but just wondering is there a command for this usage.

Setting it at 20it looks almost as good as the original a little fuzzier and the sownsample text at the bottom is a little hard to read, but it was originally anyway.

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Not aware of any single command which could do what you ask but here is a loop I put together which can do the job: Thanks, I assumed too much in my first answer. Looking for another solution.


Best way to downsample audio [Linux]

Leave a Reply Cancel reply Enter your comment here If you’re still tight for space, especially for the multipage PDFs, you could compress further by adding the files to a ZIP or other archive. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand llnux Terms of Service. Seems like my “downsampling” was due to omitting density The second script makes it pixels wide and calculates the proportional height. You are currently viewing LQ as a guest.

They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. Those examples use just the standard library.

However, there clearly are some cases where it is better simply because it was remastered for the high-def version and the mastering was better than the CD version. Is there any Linux command one can use to sample subset of a file?

Batch Resize Images using Linux Command Line and Imagemagick

Sorry for this very late answer. Fill in your details below or click an dowwnsample to log in: Works for very large files: For instance, a file contains one million lines, and we want to randomly sample only one thousand lines from that file.


Note that it assumes n linud the number of lines in the file. To resize multiple files, you can try the following command as suggested by test So convert from ImageMagick will produce rasterized PDF and many people would be interested in keeping vector graphic and text untouched so only embedded images are compressed.

Batch Resize Images using Linux Command Line and Imagemagick •

How to resize an image through the terminal? In case the shuf -n trick on large files runs out of memory and you still need a fixed size sample and an external utility can be installed then try sample: Alternatively, you can use ffmpeg instead of avconv. The density parameter is important because otherwise ImageMagick down-samples the image for some reason.

I often find in a situation in which I receive very large videos that need to be compressed for being transferred or somehow managed. It looked alright atand was a little smaller, but if you want to cater for a range of PDFs should work.

This fails badly if the file has fewer than lines. Sign up or log in Sign up using Google.