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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Is there any more capable CLI software than this? These options bring your 1. Thanks, I assumed too much in my first answer.
If not, ImageMagick defaults to Thu Mar 07, 3: From the lame manuale page: Increase podcast bitrate and sampling. 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 downsamole then try sample:.
All these operations can be combined. For example you can do a downsampling of the mp3 quality, specifing the a new lower bitrate using the -b option. You can click save on the bottom right corner of the window Figure 5 8 Now, just select the output file, click start and wait a little bit.
So, you could easily just do the following to use head as you requested:.
Post as a guest Name. Worth linud, you may want to explicitly re-sample, eg –resample CamScanner pdfs are all A4 sized and multi-page ones often exceed the 2MB attachment limit.
Registration is quick, simple and absolutely free. 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. If you’d like to contribute content, let us know. Adding in the compression option helps keep the overall size of the PDF smaller, with no loss in quality.
This question already has an answer here: This question appears to be off-topic. I’m hoping sox does it properly, that would be easiest for me. Email Required, but never shown. Introduction to Linux – A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
It needs to be something i can call from a shell script. See here for a test on your file. If you want CLI only: If the file has more than lines, then these commands will choose only from the first lines.
Command line just As you indicated: So, you will not get a well spread line numbers. The following command takes an image named howtogeek.
To use Script 1: If you need high performance, an exact sample size, and are happy to live with a sample gap at end of the file, you can do something like the following samples lines from a 1m line file:. If you need to reset your password, click here.
Instead, describe the problem and what has been done so far to solve it. Setting a scale of 0.