Speech Recognition For Linux Gets A Little Closer

It has become commonplace to yell out commands to a little box and have it answer you. However, voice input for the desktop has never really gone mainstream. This is particularly slow for Linux users whose options are shockingly limited, although decent speech support is baked into recent versions of Windows and OS X Yosemite and beyond.

There are four well-known open speech recognition engines: CMU Sphinx, Julius, Kaldi, and the recent release of Mozilla’s DeepSpeech (part of their Common Voice initiative). The trick for Linux users is successfully setting them up and using them in applications. [Michael Sheldon] aims …read more http://pje.fyi/QBhdrt

Paul Jacob Evans


Learn to Reverse Engineer x86_64 Binaries

Opening up things, see how they work, and make them do what you want are just the basic needs of the average hacker. In some cases, a screwdriver and multimeter will do the job, but in other cases a binary blob of random software is all we have to work with. Trying to understand an unknown binary executable is an exciting way to discover a system’s internal functionality.

While the basic principles of software reverse engineering are universal across most platforms, the details can naturally vary for different architectures. In the case of the x86 architecture, [Leo Tindall] felt that …read more http://pje.fyi/Q98GJH

Paul Jacob Evans

Fixing Linux Audio One Chipset at a Time

Linux audio may be confusing for the uninitiated. As a system that has evolved and spawned at least two independent branches over time it tends to produce results that surprise or irritate the user. On the other hand it is open source software and thus can be fixed if you know what you do.

Over at reddit [rener2] was annoyed by the fact that listening to music on his laptop was a significantly worse experience under Linux than under Windows. Running Windows the output of  the headphone jack covered the whole spectrum while his Linux set up cut off the …read more http://pje.fyi/Q2psxS

Paul Jacob Evans

Linux Fu: System Administration Made Easier

Linux can have a somewhat split personality. If you use it as a desktop OS, it has a lot of GUI tools, although sometimes you still need to access the command line. If you use it as a headless server, though, you probably ought to know your way around the command line pretty well. This is especially true if you don’t want to litter up your hard drive (and CPU) with X servers and other peculiarities of the graphical user interface.

Personally, I like the command line, but I am realistic enough to know that not everyone shares that feeling. …read more http://pje.fyi/Q07ZlT

Paul Jacob Evans

Linux Fu: X Command

Text-based Linux and Unix systems are easy to manipulate. The way the Unix I/O system works you can always fake keyboard input to another program and intercept its output. The whole system is made to work that way. Graphical X11 programs are another matter, though. Is there a way to control X11 programs like you control text programs? The answer to that question depends on exactly what you want to do, but the general answer is yes.

As usual for Linux and Unix, though, there are many ways to get to that answer. If you really want fine-grained control over …read more http://pje.fyi/PpbwqZ

Paul Jacob Evans

Linux-Fu: Running Commands

One of the things that makes Linux and Unix-like systems both powerful and frustrating is that there are many ways to accomplish any particular goal. Take something simple like running a bunch of commands in sequence as an example. The obvious way is to write a shell script which offers a tremendous amount of flexibility. But what if you just want some set of commands to run? It sounds simple, but there are a lot of ways to issue a sequence of commands ranging from just typing them in, to scheduling them, to monitoring them the way a mainframe computer …read more http://pje.fyi/PT2TMK

Paul Jacob Evans

VIM Normalization

Linux users–including the ones at the Hackaday underground bunker–tend to fall into two groups: those that use vi and those that use emacs. We aren’t going to open that debate up again, but we couldn’t help but notice a new item on GitHub that potentially negates one of the biggest complaints non-vi users have, at least for vim which is the most common variant of vi in use on most modern systems. The vim keybinding makes vim behave like a “normal” editor (and to forestall flames, that’s a quote from the project page).

Normally vi starts out in a command …read more http://pje.fyi/PP6DTQ

Paul Jacob Evans