Sunday, June 26, 2011

CrazyEngineers Forum

CrazyEngineers Forum

How to convert MPEG, VOB, RM, RMVB, WMV, MOD, TOD, MP2, AAC, AC3, WAV to MP4

Posted: 26 Jun 2011 06:46 PM PDT

MP4 is short for Moving Picture Expert Group-4. A MPEG-4 file may contain any number of audio, video, and even subtitle streams, making it impossible to determine the type of streams in an MPEG-4 file based on its filename extension alone.
A lot of portable players support MP4 files, such as iPod, iPhone, PSP, Creative Zen, iRiver PMP, Archos, PS3, Xbox…
When we have a mp4 file, we can put it on our player directly. However, we can’t always come across the suitable video format. Some video fans know that they need a converter. What converter should we choose? According to my experiences, I recommend people to try general videMP4 is short for Moving Picture Expert Group-4. A MPEG-4 file may contain any number of audio, video, and even subtitle streams, making it impossible to determine the type of streams in an MPEG-4 file based on its filename extension alone.
A lot of portable players support MP4 files, such as iPod, iPhone, PSP, Creative Zen, iRiver PMP, Archos, PS3, Xbox…
When we have a mp4 file, we can put it on our player directly. However, we can’t always come across the suitable video format. Some video fans know that they need a converter. What converter should we choose? According to my experiences, I recommend people to try general video converter which is suitable for all kinds of players. Now I share a MP4 Converter which can convert all the mainstream video and audio formats MPG, MPEG, MPEG2, VOB, RM, RMVB, WMV, MOD, TOD, MP2, AAC, AC3, WAV to MP4, AVI, MP3, which is playable on all the MP4 MP3 players.
In the following text, I will show how to convert videos to mp4 format with MP4 Video Converter.

Step 0: Download and install 4Videosoft MP4 Video Converter
After the download is finished, run the .exe file and follow the installation wizard instructions.

Step 1: Run and select your input video file
Click the “Add File” button and select the appropriate source from the list:



Step 2: Edit your output video
1. Remove unwanted parts or get any segment
Click “Trim” option, a window will be pop up: you can trim any segment of the movie by dragging the slider bar or clicking "Start Time" and "End Time" button when you preview or inputting certain time number in “Start time” and “End time” fields manually.



2. Cut off the black edges or get any play region
Click “Crop” option, a window will be pop up: you can crop by selecting a crop mode or adjusting the crop frame or setting the crop values. You can also set the output aspect ratio from the Zoom Mode according to your need.






Step3: Select the portable device and output file parameters
At the next step you will only need to point out which device you are going to use to watch the movie after you converted it. The other video settings (Encoder, Resolution, Frame Rate, Bit rate, audio Channels and Sample Rate) will be adjusted automatically according to the chosen device preset. You can also set your own parameters by clicking “Settings” button.

Calculating the power output of a variable speed fan

Posted: 26 Jun 2011 01:57 PM PDT


Just looking for some help with this,

I have an axial flow fan connected to a variable speed drive set to 50hz, what I need to know is how to calculate the power output of the fan at any given frequency between 0 - 50hz.

Details of the fan are as follows:

3phase 400v

P=2900W
I= 4.9A
n= 1350min-1

Accutron 214 coil

Posted: 26 Jun 2011 11:56 AM PDT

Hello, I have a few accutron 214 coils that are open and I want to know if is possible using new wire to recoil the broken ones? What I think is that using some type of new wire may be possible to obtain the original function with less wire The original coil have about 8.000 turns and the wire is thinner than the human hair and was design at the end of 1950. There are a lot of business in find a way to recoil the original ones because they are difficult to find and they cost about $100.00 ore more for the two coils in each watch. Please let me know any additional information you need.
Thanks and sorry for my English
EJS

problem in program loading

Posted: 26 Jun 2011 10:22 AM PDT

Helo,
anybdy thr pls help, am having a prblm with my miniprjt, itz cald GSM based accident detection. am uisng NXP phillips s 89v51rd2, n using a flasher called Flash Magic. while am loading the hex code, a dialogue box says this " try to reduce the baud rate".i hd successfully loaded the prgm to the same ic once with baud rate 9600. i tried loading by increasing and decreasing the baud rate. bt having the same prblm again. somebody pls help me:(

Hi all.......just joined...

Posted: 26 Jun 2011 06:05 AM PDT

heard today about CE and decided to join.......very new to this .......will get used to it soon...thanks.......sachin

Interested in making yacht

Posted: 26 Jun 2011 03:08 AM PDT

I'm interested in making a yacht, any ideas?

Solar panels on factory roof for electricity generation

Posted: 26 Jun 2011 03:04 AM PDT

I am living in a tropical country with maximum sunlight, I have a large factory roof. I am interested in harnessing the sunlight for electricity generation for purpose of lighting and any other possible use.

Would like to know the feasibility & if anybody has any ideas or experiences in this context?

Dumb lift (small lift for small materials) for household usage.

Posted: 26 Jun 2011 02:57 AM PDT

I am interested in building and installing a small lift (also known as dumb lift) in my house for vertical transportation of house hold materials such as:- books, groceries as well as materials for house hold usage and consumption.

Would like to know if anybody has made and installed such an elevator lift, and how to make it?

low cost housing

Posted: 26 Jun 2011 02:48 AM PDT

hosuing techniques in india, for larger masses

solutions to raise the truck with10 wheels at first floor level

Posted: 26 Jun 2011 02:45 AM PDT

solutions to raise the truck with10 wheels at first floor level, with a slope gradient of 1:6.5, up to height of 3.0meters, amd length of 65 feet.

Bluetooth Data Acquisition Project HELP!

Posted: 26 Jun 2011 01:40 AM PDT

Hi, I have this situation. I have to design a hardware that senses other bluetooth devices and stores the MAC ID's of the detected devices along with the time of detection. This device eventually will be installed on roads to acquire data about the number vehicles travelling. Now from where should i start this project?

A Bluetooth dongle will be used to sense the devices and from there on please tell me how to move about in this project. Just the idea will be enough for me to take over.

Thanks in advance. Cheers.

Any one heard about combined heat and power generation

Posted: 25 Jun 2011 11:06 PM PDT

"An new method of electricity generation"

Readmore

Another excellent topic for robotics"Ware house management using robotics"

Posted: 25 Jun 2011 10:58 PM PDT

Read more on the seminar here

Robotics for medical applications

Posted: 25 Jun 2011 10:55 PM PDT

For detailed description click here This will be a nice topic for robotic seminars
  • Date: 7:28 PM
  • Author: Vipul Sawant.
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