joergschiller

Howto Enable and Use A2DP Sink on Ubuntu Linux with Bluez

1. Add Enable=Source to /etc/bluetooth/audio.conf right after [General].

2. Find address in form XX:XX:XX:XX:XX:XX of phone with hcitool scan.

3. Pair and trust smartphone with sudo bluez-simple-agent hci0 XX:XX:XX:XX:XX:XX and sudo bluez-test-device trusted XX:XX:XX:XX:XX:XX yes.

4. Create loopback in pulseaudio connection bluetooth a2dp source with alsa sink:

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

manpages

# ~/.mpd/config
# MPD configuration that enables you to run the server from the userspace
# And to stream music over HTTP so that you could listen it in a distributed fashion (from the office/school)
# Uncomment the commented lines to stream music to the local audio output
# Note that you can have more than one audio outputs enabled!

# Where is my music?
music_directory "/home/mpdaemon/Music"
playlist_directory "/home/mpdaemon/.mpd/playlists"

wobbals

package com.opentok.media.avc;

import java.io.IOException;
import java.nio.ByteBuffer;

import android.media.MediaCodec;
import android.media.MediaCodecInfo;
import android.media.MediaFormat;

public class AvcEncoder {

mattratleph

vimdiff cheat sheet

##git mergetool

In the middle file (future merged file), you can navigate between conflicts with ]c and [c.

Choose which version you want to keep with :diffget //2 or :diffget //3 (the //2 and //3 are unique identifiers for the target/master copy and the merge/branch copy file names).

:diffupdate (to remove leftover spacing issues)

:only (once you’re done reviewing all conflicts, this shows only the middle/merged file)

vodik

Once upon a time there was a user that wanted to install firefox.

The user tried to do pacman -S firefox but it didn't work. The all mighty pacman reported that firefox-3.2.4-1.i686.pkg.tar.gz could not be found on his mirror. So the user tried pacman -Sy firefox. It worked and the user rejoiced since he could once again go and troll /h/.

But all was not good. The user had made a grave error!

See, when the user told the almighty pacman to -Sy firefox, pacman did

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

jikkujose

unbind C-b
set-option -g prefix `
bind ` send-prefix

Snegovikufa

Command: C:\Program Files\Sublime Text 3\sublime_text.exe
Arguments: $(ItemPath):$(CurLine):$(CurCol)
Initial directory: $(ItemDir)

lehnerpat

How to get simultaneous / dual output to both Analog out and HDMI out with Jack Audio on Ubuntu 13.10

Configuration used:

• OS: Xubuntu (Ubuntu) 13.10 (saucy)
• Audio: HDA Intel PCH (ALC269VB Analog) on an Intel Core i5 2557M (Sandy Bridge microarch)

Install below packages and set user group, then reboot

Packages you will need (and the versions I had when I did this):

• jackd2, 1.9.9.5+20130622git7de15e7a-1