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Questions tagged [multiplexing]

In telecommunications and computer networks, multiplexing (also known as muxing) is a method by which multiple analogue message signals or digital data streams are combined into one signal over a shared medium.

In telecommunications and computer networks, multiplexing (also known as muxing) is a method by which multiple analogue message signals or digital data streams are combined into one signal over a shared medium.

The aim is to share an expensive resource. For example, in telecommunications, several telephone calls may be carried using one wire. Multiplexing originated in telegraphy in the 1870s, and is now widely applied in communications.

In telephony, George Owen Squier is credited with the development of telephone carrier multiplexing in 1910.

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How different is the H264 data on TCP/RTSP compared to UDP?

I am working on analyzing H264 video data being streamed over a network. Right now, I am able to successfully extract and analyze the raw H264 for UDP. This process is going to be ALOT harder for the TCP/RTSP because of fragmentation and…
user3335040
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Arduino: Multiplexing 7-segment display issues

I have a 3.5 digit 7-segment LED display which I am trying to drive with an Arduino. The Arduino runs a shift register with a latch (M74HC595). The 8 outputs of the shift register go through 2000Ohm resistors and into the 8 segment pins of the…
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How does TCP multiplexing different from UDP multiplexing?

How is TCP multiplexing different from UDP multiplexing? I know that TCP uses 4 identifiers for multiplexing-depmultiplexing(source IP, source port number, destination IP, destination port number) whereas UDP uses 2 identifiers( destination IP,…
user3170662
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the function select() for multi client socket programming

I have simple question about select() of I/O multiplexing function for socket programming. When select function executes, it`s said that it modifies its examining fd set, so we need to reset it again every time. (fd_set read_fds for example..) But…
Swen
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Parallel data to serial in C/C++ : Implementing a multiplex

I began working on the implementation of a basic parallel to serial data converter (MUX) in C or C++. Basically, this program takes data from some files and shows them in serial in a single file. I started with this, I searched on the internet and…
Ita
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Unable to mux two live streams from webcam using ffmpeg in linux

We are trying to multiplex two live streams from webcams into an output file using ffmpeg in linux as follows, fmpeg -i "http://10.41.2.57:8090/webcam.asf" -i "http://10.41.2.49:8090/webcam.asf" -map 0:0 -map 1:0 -t 60 "/home/../MuxLiveStream1.flv"…
user2902884
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Using MATLAB to send multiple serial signals through the same port

I'd like to send multiple signals (4 inputs and outputs and 7 outputs) from my Laptop to a microcontroller. I'm thinking of using a USB to serial converter and multiplexing the data through the port. I'll need to write codes both in the laptop end…
Analon
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Arduino Mega vs Uno

We're programming a doorbell recognition system and have decided to use the Arduino to handle most of the circuitry. The one thing I'm unsure of is the program capacity of the Arduino Uno vs the Arduino Mega. I know the Uno has only about 32 KB of…
Buten
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Can somebody help for 5x7 dot matrix display simple VHDL code for charachter "R"?

This is the code that I am using but i need to slow the clock down in order to see how the columns and rows are changing. I think there is some problem on my clocking: library IEEE; use IEEE.STD_LOGIC_1164.all; use IEEE.STD_LOGIC_ARITH.all; use…
umid_uz
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HTTP Server Multiplexer/Tunneler(Proxy)

I'm looking for a HTTP Server Multiplexer because I've only one public IP and I need use two different Web Servers (Tomcat and IIS) on the same port (the 80). So I thought that is possible use a multiplexer to tunnel all traffic for iis.mydomain.com…
Alberto
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Concept of Time Division Multiplexing

I have been studying the concept of Time Division Multiplexing, but I have not been able to understand some stuffs, for instance, I have not been able to understand why the sampling rate for audio is 8Kbps and then they say the frame length is…
George
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How to do multiplexing I/O for read multiple file when the file size increase?

There are many files generated on network shared file system (NFS). There is a similar question without proper solution: inotify with NFS. I use select() to test if the file have new data could be read. (In fact, some are come from socket…
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UDP sockets use of select()

Hi I'm creating a proxyserver that wait for packets from client with an UDP connection and checks if all of them are effectively arrived or same of them have been rejected . In that case I should send an "ack" to the clients for each lost packet…
nirva
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remultiplexing a stream with gstreamer stops in PREROLLING

i'm trying to re-multiplex a quicktime movie (video/jpeg, audio/mpeg) using gstreamer. gst-launch filesrc location="${INFILE}" \ ! qtdemux name=demux \ ! queue \ ! qtmux name=mux \ ! filesink location="${OUTFILE}" \ demux.audio_00 \ ! queue \ …
umläute
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Using CD74HC4067 16-Channel Analog Multiplexer Demultiplexer is not working as expected

I am working on a project that needs multiple digital signals and I am considering the CD74HC4067 (on a break-board) to work as a multiplexer. More specifically i am trying to build a keypad with multiple ttp123 break-boards. Each ttp123 signal is…
thermike
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