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Zuck Finds God

Posted by takyon on Sunday January 01 2017, @01:44PM (#2180)
10 Comments
/dev/random

Neat Trick!

Former Atheist Mark Zuckerberg Gets Religion

I guess having an enslaved robotic Morgan Freeman softly whispering into your ear can cause you to question things.

Video Files - Editing and Shipping [Updates: 2]

Posted by martyb on Sunday January 01 2017, @04:49AM (#2179)
7 Comments
Answers

Updated... see below.

I was at a concert a while ago and recorded, what I found out later, was a debut performance of a song. As I am friends with the lead singer, I'd like to send her a copy, but there are a couple of "issues".

Part 1: Editing

So, I've got a couple video files that I want to "process". I have no experience with video and only very limited experience with audio file manipulation.

Here is the pertinent data from ffprobe on the 25.6 MB introduction:

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'intro.mp4':
  Duration: 00:00:18.54, start: 0.000000, bitrate: 11342 kb/s
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1280x720, 11378 kb/s, SAR 1:1 DAR 16:9, 24.08 fps, 24.17 tbr, 90k tbn, 180k tbc (default)
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 96 kb/s (default)

Here is the pertinent data from ffprobe on the 1099.8 MB song itself:

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'song.mp4':
  Duration: 00:10:39.32, start: 0.000000, bitrate: 14092 kb/s
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1280x720, 14000 kb/s, SAR 1:1 DAR 16:9, 30 fps, 30 tbr, 90k tbn, 180k tbc (default)
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 95 kb/s (default)

(1) At the outset I had accidentally activated the wrong camera on my mobile phone. I'd like to keep the audio of the singer introducing the song.

(2) The video of the song actually contains TWO songs. I'm only interested in extracting the first song (the first 4m40s) from this video.

(3) Optional, but would be really nice, I'd like to make a "title" with the name of the group, name of the song, date, and location with the intro audio playing in the background.

(4) Ideally, I'd like to catenate the intro from (3) to the video from (2) and create a single file.

I'm running Windows 7 Professional. Have you ever done something like this? What free tools would you recommend?

Part 2: Shipping

I expect the final file to be about 500 MB, give or take. How would you recommend getting the file to her? It is rather large to send as an e-mail attachment. I do not have drop-box or one-cloud or any of the other file-sharing services. I'd like to keep the file private. I can't be the first who wants to do this. What options do I have?

Update(s):

Update 1: 20170101a - Happy New Year!

I've completed step (1) and extracted the audio for the intro to a separate file, intro.mp3, using:

   ffmpeg -i intro.mp4 -ab 96k  intro.mp3

Yeah, I know. 96kbps is not the greatest, but it's what was captured in the video, so I'm stuck with it.

Now to extract just the first 4m40s video of the song to a separate file. Looks like this could be done with ffmpeg?

Update 2: 20170101b

With many thanks to fn0rd666, got the "magic" incantation for ffmpeg:

fmpeg -ss 00:00:00.0 -i infile.mp4 -t 285 -codec copy outfile.mp4

Which means: start at the very beginning of the source, read from the file infile.mp4, copy 285 seconds, copy input straight to output (no transcoding), and send the output to the file: outfile.mp4!

Tau Zero Foundation Analysis of EmDrive

Posted by takyon on Saturday December 31 2016, @03:52AM (#2176)
0 Comments
Science

Uncertain Propulsion Breakthroughs?

Further into the article, they really trash the recent peer-reviewed paper for having several flaws.

Overview

Technical

(1) The experimental methods and resulting data indicate a possible new force-producing effect, but not yet satisfying the threshold of “extraordinary evidence for extraordinary claims” – especially since this is a measurement of small effects.

(2) The propulsion physics explanations offered, which already assume that the measured force is real, are not sound.

(3) Experiments have been conducted on other anomalous forces, whose fidelity and implications merit comparable scrutiny, specifically Jim Woodward’s “Mach Effect Thruster.”

Implications

(1) If either the EmDrive or Mach Effect Thrusters are indeed genuine, then new physics is being discovered – the ramifications of which cannot be assessed until after those effects are sufficiently modeled. Even if it turns out that the effects are of minor utility, having new experimental approaches to explore unfinished physics would be valuable.

(2) Even if genuine, it is premature to assess the potential utility of these devices. Existing data only addresses some of the characteristics necessary to compare with other technologies. At this point, it is best to withhold judgment, either pro or con.

Pitfalls to Avoid

(1) The earlier repeated tactic, to attempt fast and cheap experimental tests, has turned out to be neither fast nor cheap. It’s been at least 14 years since the EmDrive first emerged (2002) and despite numerous tests, we still lack a definitive conclusion.

(2) In much the same way that thermal and chamber effects are obscuring the force measurements, our ability to reach accurate conclusions is impeded by our natural human behavior of jumping to conclusions, confirmation biases, sensationalism, and pedantic reflexes. This is part of the reality that also needs understanding so that we can separate those influences from the underlying physics.

CES 2017 Dumping Ground

Posted by takyon on Wednesday December 28 2016, @11:42PM (#2175)
0 Comments

Zookeeper to Syrian Army

Posted by takyon on Wednesday December 28 2016, @03:43PM (#2174)
0 Comments
/dev/random

A fun piece over at the Mirror that managed to reach near the top of Google's World news section.

Dec. 26 Mall Melees of America (Updated)

Posted by takyon on Tuesday December 27 2016, @02:41AM (#2173)
1 Comment

Fill the Swamp! (Updated)

Posted by takyon on Wednesday December 21 2016, @07:30PM (#2166)
4 Comments
News

Gingrich Says Trump Must Address Business Conflicts Soon, Urges Monitoring

Gingrich: Trump dropping 'drain the swamp'

Trump Adviser Says He Is Ditching 'Drain the Swamp'

Newt Gingrich says Trump is done with ‘drain the swamp’

https://www.youtube.com/watch?v=P_MJbgO7SF0

The God Kek demands many more human sacrifices, otherwise Trump will continue to discard all of his campaign promises. Sacrifice children for the glory of Kek and the success of Trump.

Update: The child sacrifices have satisfied Kek, and Trump will continue his policy of draining the swamp.

Fake News Joke Tweet Leads to Call From the FBI

Posted by takyon on Thursday December 08 2016, @12:59AM (#2162)
0 Comments

Trump and Duterte's Drug War Bromance

Posted by takyon on Sunday December 04 2016, @01:52AM (#2158)
6 Comments

Abbreviated Arguments

Posted by The Mighty Buzzard on Saturday December 03 2016, @05:21PM (#2157)
6 Comments
Soylent

I know a lot of you are disappointed I didn't go ahead and finish the debate on the MIT petition story. Tough.

Most days it's fun smacking down the willfully ignorant but sometimes outside forces conspire to make me too tired to bother. I just delete all the messages, pop open a beer, and watch some TV.

This was one of those times and you're just going to have to live with it.