Microphones capture multiple producers/consumers

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• How to capture multiple line String using regular expressions?

  Hello

  I have a simple program like this:

  

  What I want to accomplish is to capture everything between > start and > to end with a single regular expression matching node. It seems that the definition of multiples? true or False does not help.

  I'm using LabVIEW 2012.

  If it is impossible to capture using a single node, that's fine. But I want to assure you that I can make full use of this node without combining several others.

  Thank you!

  > start([\w\s]*) > end

  A point matches any character except line break characters.  You have two of them.

  

• capture multiple and reading images

  Hi all

  I use a Guppy F031 Pro camera equipped with trigger mode in bulk.  Now I can leave the exposure of the device twice in the series after an external trigger (my previous post).  But I don't know where are the stored images and how to read the two outside pictures and store them in the hard disk.

  When I use IMAQdx get image vi to capture image and set as number mode with 2 buffer pads.

  Does this mean that I assigned two location in RAM for my image?  If so, how can I find their location?

  

  Best,

  Wen

  "When I use IMAQdx get image vi to capture image and set as number mode with 2 buffer pads.

  Does this mean that I assigned two location in RAM for my image?  If so, how can I find their location? »

  -To my knowledge, it is false.

  Buffer allocation:

  -There are two types of internal buffers and buffer of the user you want to set up and use.

  -internal buffer is that you can configure using IMAQdx configure acquisition and giving the required number of buffers you want to allocate.

  -the user buffer is a condigure you or create using IMAdx create and giving them different middle names, creating several buffers. (You must remove the user buffers when finished processing using IMAQdx has, otherwise it will fill the RAM memory.

  Number of buffer:

  -A number of buffer is a zero-based index that represents the cumulative number transferred image. For example, during an acquisition continues with three internal buffers, the number of buffers is updated as follows: 0, 1, 2, 3, 4, 5 and so on. Buffer 0 and 3 numbers correspond to the same internal buffer in the ring of the buffer. (From NI IMAQdx manual)

  -Which means you will need to give different buffers number each time adding 1 whenever you receive an image. and not a constant of 2.

  For your question:

  -Configure the acquisition with more than two buffers, start the acquisition.

  -Give the number of buffers to 0 and increment after successful image and send it to IMAQdx get image.

  -For each image, your user buffer is even currently, which means that it will overwrite the same. If you want them to be different, you can create several and use also.

• microphone captures all the sounds around him

  When I'm on steam or just using my headset when I talk, I hear other sounds around me how can I fix problem cause it's hard to play games on my laptop cause my choice of microphone, all the sounds around me. my lap top is a Lenovo 2013 windows 8-os h.d. 427 GB not touch scree. Please help asap thank you

  Hello Mary,.

  Thanks for posting your question on the Microsoft community.

  Thank you for details on the issue.

  This problem can occur because the parameters or corrupt device drivers.

  I suggest you Start convenience store audio and check if that helps. Please follow these steps:

  a. press Windows + C keys and click on Search.
  b. type Troubleshooting in the search box, click on it in the search results.
  c. click on "display all" and then click on 'Audio'.
  d. click on 'Next' and follow the on-screen instructions.

  Please also updated audio driver from the site Web of the manufacturer of the computer and the check.

  I hope this information helps.

  Please let us know if you need more help.

  Thank you

• Capture multiple strikes?

  I have a function that tries to catch multiple keys shots...

  For example, I want to be able to press Alt + 1 and be able to send a 'Hi' to a textInput. I found the code on how to do it on the Adobe site, but it is not working properly 100% of the time. Sometimes it will display 'Hello', and that it will show '1 '.

  private void keyHandler(event:KeyboardEvent):void {}
  var bShiftPressed:Boolean = event.shiftKey;
  var bAltPressed:Boolean = event.altKey;
  If {(bAltPressed)
  {Switch (Event.keycode)}
  case Keyboard.NUMBER_1:
  btnClick ('hi');
  break;
  }
  }

  Does anyone have an idea on how to make this work?

  Try calling preventDefault

• What is a good way to use the queues for the model of consumers/producers?

  Hi all

  I am following the model of consumers/producers to use the queue to synchronize the following process: the producer is a loop to produce a number N, I will put each number generated in a table and after each 5 numbers generated, I put the table in the queue and pass it on to the consumer. I have to wait the use by consumers of the data and it will then remove the item from queue so that producers will have the chance to produce another 5 numbers. As I put the maximum size of the queue one, I expect that the producer and the consumer turns to produce / consume all five numbers and the opportunity to another. Here is my code

  

  When the checkbox is false, the code will be

  

  For the first 5 numbers, product will generate every thing right and put it in the table, and it's going to pass the array to the quere so that the consumer will have the chance to loop through the table. I except the procude loop will continue only when the queue is available (i.e. all items are deleted), but it seems that once the consumer starts the loop loop of the product will continue (if the indicator x + 1 and x 2 will be changed to numbers). But this isn't what I want, I know there must be something wrong, but I can't say it is.

  dragondriver wrote:

  As you say in 1, sequency structure to enforce the order of execution, that's why I put it here, in this example, the simple question, I replace the complete code with increase in the number, in the real case, the first markers + 1 and + 2 must be performed in this order.

  Mikeporter says:
  1. get rid of all the structures of the sequence. None of them are nothing but apply a work order which would have been the same without them.

  So even if you delete the sequence structure, there will be a fixed & defined order and it is because LabVIEW follows the MODEL of FLOW OF DATA.

  Data flow model (more precisely in the context of LabVIEW): a block diagram node runs when it receives the required inputs. When a node is running, it produces output data and transmits data to the next node in the path of the data stream. The flow of data on the nodes determines the order of execution of the VIs and functions on the block diagram (click here for reference).

  Now in your code, just remove the sequence structure will not make you order will be going to stay the same, but you need to do some very minor changes (as thread of the error in loop, before that he go to the node "Élément Dequeue").

  Come to the main point: it's a good way to use the queue for the consumer/pmodel that?
  The model you are using (and qualifying as consumer/pmodel) is much too deviated from the original consumer/pmodel which model.

  dragondriver wrote:

  For the second, Yes, it's my fault for delete, though. I'm actually the example of model of producer/consumer design pattern, but I do not pay attention to the while loop in the part of the consumer.

  While loops (two producers & consumers) are the essential part of this architecture and cannot be deleted. You can start your code using standard model.

• What happens if several consumers - whose architecture SW should I use?

  There are several models of VI and documentation on the producers/consumers type aqrchitectures

  I have some experience with LV, but limited experience with multi-threading programs and events.

  My question is what happens if the consumer also produced data? ... the tutorials do not really extend to it.

  In my application, I have 3 USB CAN transmitters and a NOR-DAQ.

  I intend to have loops or threads for each multiple hardware device at the lower level.

  There will be a loop of the UI (producer) and a "test step sequencer" interpret the activity of the façade and send commands to the hardware devices to take action or perform a measurement.

  My main problem is what is the best method/practice of transmission of data to the 'test step sequencer' material once the acquisition is completed?

  Do you use the same queue to pass data back (for evaluation of success/failure analysis and test) or any other method.

  This might work.

  A difference between the Registrant and the queues is that with queues, you can be sure that the loop of consumer gets the message (assuming that there is no problem with the producer generating and sending).  Even if the consumer is busy doing other things, the message waits in "inbox" of the consumer until he is ready to read.

  A notifier, there is no guarantee that every piece of code that expects a notification will get all messages.  Think that the declarant is a whiteboard.  A message to put out there for anyone interested to read.  But when a new message to be sent, the sender is declined, clears the Board and writes the new message.  If someone who is interested in messages has been busy and you can't go to the Commission while the first message is there, it will never see the message.

  If you want to ensure that each loop gets all their messages, then just a queue for each loop that behaves like an Inbox.  If you need to send the same message to several loops, then queue the data in multiple queues.  If you get a message back, enqueue sending loops reference to queue in the data (self-addressed stamped envelope).  (you can also put a Boolean value in the cluster that could be an indicator as to whether the 2nd loop should send something again or not.)  If you need the first loop to wait for the return data before you go, then he's waiting in the queue.  But you can use the time-out function so that it is not wait forever for something that never comes back and integrate logic into your program so that it can handle this situation (doing nothing, resend the message, open a session, or displays an error message...)

• External microphone level is very low?

  Hi, I have an iMac and am trying to use a condenser nw-700 Neewer with her microphone.

  I have a ghost (an Innogear IG101) supply and it IS lit.

  I have the microphone connected to the power source via an XLR cable, then the power supply of the outputs of the XLR jack 3, 5 mm plug, which is connected to the entrance at the back of my iMac micro.

  Everything is connected and switched on correctly.

  When I put external inputs: Line In System Preferences and/or Quicktime, even with the input volume turned up completely the microphone captures only very low voice.  Typing the spikes the input indicator microphone, so I know that the microphone is "hearing" sounds, but the entry level is low it is essentially useless.  The microphone must be less than 5mm of my mouth and I must scream until it's strong enough in the record.

  Any ideas what is the problem here?  Everything I bought is supposed to be 'plug and play', but it doesn't work well at all.

  According to the info on Amazon, this cannot be used with a Mac.

  

• Trigger camera to acquire multiple images

  I have a camera for Imaging Source and it captures only one image for each external trigger pulse. But I want it captures 3 images. Y at - it any idea how do?

  The Datasheet for the camera DMK 23UV024

  Steps performed so far:

  1. Generate the trigger of a datagenerator pulse and trigger the camera
  2. Developed a LabVIEW program that can capture images on the trigger
  3. I have two different images to grab for a single trigger, since the camera captures a single image for each trigger, it will create confusion as to what trigger image belongs to who. How can I solve this problem.
  4. The idea is to capture 2 images that based on 1 trigger pulse without any interference between the two images

  With a few exceptions, cameras provide an image by trigger.  There are some devices that allow you to set a registry value to capture multiple images, but you would need to have one of these cameras in the first place.

• Snipping Tool question - how to capture several shears

  original title; Question of tool cutting

  How can I capture multiple captures in a single file, using the Snipping Tool?

  Hi Luvminou,

  It is not possible to capture several captures both. You can use the tool to capture the unique screenshot capture and save it and after that you will need to take another and then you can save it.

  It is possible to keep together, but do not capture multiple captures both

  Thank you, and in what concerns:
  Shalini Surana - Microsoft technical support.
  Visit our Microsoft answers feedback Forumand let us know what you think.

• several images capture and read their path to send the byte array to the web service

  Hello

  Have a problem when the image capture, the requirement is to open the camera and capture multiple images, and once done it should send the array of bytes to the web service, wrote the class with reader and Video Control of the code and then using the saved file to store image API, but when the user capture multiple images it replaces previous if I keep the path to say dynamic by using the date and time then how I just know what images are recently captured and their path, one time I know that the path of recently captured using new fileconnection images can read the image byte array.

  Hi Nishant,

  find the attached code. In this demo, you will find:

  (1) the use of the listner log file system

  (2) how to move data from one folder to another.

  (3) how to read file system byteArray.

• Change the time of Capture on several Images

  The problem I have is that my internal clock cameras drifted on and I need to adjust the time to capture a number of images by a strange amount it is not a whole number of hours.

  Can anyone suggest how this can be done?  It is change the time to capture multiple images of an amount as - 1 h 25 m 35 s and are RAW image files.

  Thxs

  Colin

  Colin,

  In library, grid view, filter on the adaptation of neeeding images (i.e. using a filter of metadata) and select all the images that need adjustments. Make sure that the picture you know what time it should carry is selected as the most selected image.

  Then choose metadata-> edit Capture time, "Adjust to a date and time" and enter the time that the most selected image must wear. The most selected image will be reduced to what you enter, and all other selected images will be adjusted by the same amount as the most selected image.

  Beat

• Satellite L655 - sound does not work on the new install of Windows 7 Pro x 64

  Howdy all,

  I bought a Newegg L655-S5111, which was on sale, put an SSD, and then installed a legitimate copy of Windows 7 Professional 64 - bit, I got from my current employer (I'm a computer scientist). I've updated to the latest revision of the BIOS (1.70), and I have all the updates installed Windows, all drivers installed, including the correct drivers Conexant HD Audio and ATI HDMI Audio. Unfortunately, the sound does not work. Sound works briefly during my first install of Windows 7, then I cut it up until I could get it set up with a helmet. When I disabled it, she had stopped working.

  This laptop is less than 3 weeks at this point, old and I get no audio on headphones or speakers, even if Windows displays clearly no problems with the drivers, they have the latest version on a new installation, and I can see the audio mixer game. The laptop built-in microphone captures sound as well. I think that's probably not a matter of the physical interconnection, but more likely a software problem, I just have trouble identifying where it is.

  I have also no related error message than any where in the case of newspapers.

  Post edited by: ADMIN

  Can you please do a test and install original recovery image Toshiba, that you got with your laptop on this new SSD, just to see if it will work with the original image.

  Recovery image contains all the necessary drivers and OS is perfectly configured so each piece of hardware in your laptop should work correctly.

• with an average

  Hello everyone,

  I have a question about signal average in labview. Please help me.

  I have two entries of signals to my LabView code, one comes from a function generator (in saw teeth with a frequency of 10 Hz and amplitude of the 0.4V) and the other by a detector. For each voltage coming from the unit, there is a response of the detector so that I can have a graphic on my code that the vertical axis is the response of the detector and horizontal axes is the voltage of the generator (the graph is original linear signal from).

  The frequency of the generator is of 10 Hz and I have 10 signals per second (as time passes, a lot of signals can be seen on the other). Now, how can I know LabView that update the chart every 5 seconds, what was on average 50 signals? In fact, I need to see only the final signal that is an average of 50 raw signals.

  Your help will be really appreciated

  Thank you

  Soran

  Hi Soran,

  I think the problem is that when the time is up, you stop the program and draw the thing on the XY graph. Problem is that when you stop code, the graphic delete (of course there that shift registers not initialized that contains the value of your past last run results). The easiest way is to use queues via the architecture of producers consumers (http://www.ni.com/white-paper/3023/en/).

  From the diagram below, you can see that I have 2 while loops. One is the producer where I store the values of the DAQ assistant in a queue while the lower loop is my consumer which I extracted the data stored in the queue. So for every 100 ms time will send the True value to the business structure that stores the value of the queue (you will need to play with the settings of the DAQ Assistant). If this is not the case, the producer while the loop runs the false cases indicated in the second screenshot. The consumer while loop, there is a queue Status.vi get that checks the State of the queues. As soon as there are 10 items in the queue, I find their (real case turns structure) which gives you an array of 10 elements. I have summarized the table of 10 elements and divide them by their size of table (10) and he draw a waveform graph. Otherwise, the consumer while loop runs the wrong case (meaning no evidence is found and allow the data to be buffered).

  

  

  Just take screenshots above regarding your own reference. I'll leave the rest to you on how you want to adapt this concept in your code.

  Hope that helps

  Warm greetings,

  Lennard.C

• Buffer could replace the queue in the design of producer/consumer model

  Hello

  I have a question to which the task of buffer to store the data and the queue is also of the same thing so we could use the inplace queue buffer in a design of producer/consumer model.

  No, these examples of buffer not almost equal to a queue, and never "replaces" queue at the producer/consumer.

  The advantage the most important of the queues for the producers/consumers (which none of the other mechanics buffer sharing), it is that it works activities to warn the reader that the data is available. So if you would simply replace the queue by mechanics of tampon too developed that you have attached to your last post, you will lose a large part of the object using producer/consumer.

  Thus, to compare the two mechanics:

  -Tail works activities, while the example of the buffer is not.

  -Tail must allocate memory during execution if several items are written in that corresponding queue. This also applies to the buffer (must be resized).

  -Given that the buffer is actually simply a table with overhead, memory management becomes slow and messy with the increase in fragmentation of memory. Queues to play much better here (but have their limitations, there also).

  -Overload of the buffer (the table manipulation) must be implemented manually. The queue functions encapsulate all the necessary features that you will need. So the queues have a simple API, while the buffer is not.

  -Given that the buffer is simply a table, you will have a hard time sharing the content in two parallel running loops. You will need to implement an additional charge using data value references to manage the buffer or lose a lot of memory using mechanics as variables. Lose the memory, you will probably encounter racing conditions so don't think not even on this subject.

  This led to four '+' for the queue and only a single point where 'buffer' is equal to the queue.

  Hopefully, this clears things up a bit.

  Norbert