audio jack - Page 163 - Developer IT

What are some good Screencasting Programs with Streaming?

- by Joel Coehoorn

The situation is that I work for a small college, and we have a student who will legitimately not be able to attend some classes for the next few weeks. Most of our professors use either powerpoint or a smartboard, and so we're shuffling things around so that all her classes take place in only two rooms. We want to set up those rooms to be able to live screencast (with audio) each lecture. I've seen other similar questions, but they're all more geared towards recording demos. I'm looking for something more like Live Meeting. Any suggestions appreciated.

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How can I find the program making a harmonica sound?

- by Josh

A friend has a Windows XP SP3 machine that plays a harmonica sound for about 5 seconds throughout the day at what seems to be random intervals (every couple hours). My question is how can I find the program making this sound? Is there a Windows API hook for monitoring audio access? I've gone through and checked all the standard Windows sounds in the Control Panel and right now the theme is set to no sounds and I personally checked to make sure none of the events have a sound specified. I also checked the Task Scheduler to make sure there wasn't something scheduled to go off every couple hours. Any ideas on how to go about finding the bugger?

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Which app has a notification sound with 3 descending notes?

- by Eric

Brand new Windows 7 box loaded with the usual dev tools -- VS2008, Firefox, Chatzilla, Thunderbird, emacs, Pidgin, Putty, iTunes, SharpReader. Every couple of minutes, I get an audio notification consisting of three rising notes, maybe a middle-C-G-F on a piano (I don't have a piano handy, and don't have time to use GarageBand to try to figure it out). Nothing in the notification bar is flashing when this happens. The sound isn't in any of the Windows Sound control panel applets. And it's not in C:\Windows\Media, so it's most likely coming from a non-Microsoft app. Any chance it's Pidgin when the status one of my contact's changes (which happens plenty frequently)? Oh, look at this --- Tools/Mute Sounds. Let's try that and see what happens... Is this familiar to anyone?

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Rails - Logic for finding info from a :has_many :through needed!

- by Jty.tan

I have 3 relevant tables. User, Orders, and Viewables The idea is that each User has got many Orders, but at the same time, each User can View specific other Orders that belong to other Users. So Viewables has the attributes of user_id and order_id. Orders has a :has_many :Users, :through => :viewables Is it possible to do a find through an Order's view? So something like @viewable_orders = Orders.find(:all, :conditions = ["Viewable.user_id=?",1]) To get a list of Orders which are viewable by user_id=1. (This doesn't work, else I won't be asking. :( ) The idea being that I can do something like a sidebar where the current user (the logged-in one) can view a list of other people's orders that he can view. For example Three other Users who have some Orders that he can view should be eventually displayed like this: Jack (2) Basic Order (registry_id: 1) New Order (registry_id: 29) Amy (4) Short Order (registry_id: 12) Jill (5) Hardware Order (14) Pink Order (17) Software Order (76) (The number in brackets are the respective user_id or registry_id) So to find the list of all of the orders that the current user can find (assuming user_id of the current user is 1), would be found by doing @viewable_orders = Viewable.find(:all, :conditions => ["user_id=?", 1]) And that would give me the collection of the above 6 registries. Now, the easiest way to do this, is for me to just have a list of + Jill's Hardware Order + Jill's Pink Order + Amy's Short Order + etc But that gets ugly for long lists. Thanks!

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Mac/iPhone:Streaming video file to iPhone

- by user34157

Hi, I am redirecting my question to superuser from stackoverflow: I have a http streaming link which gives me .flv streaming feed. I want to convert that and access in my iPhone program. How can i do that? I want to have a desktop software like VLC and input this streaming feed URL and convert to iPhone supported and stream again to iPhone. I tried VLC with H.264 and Mpeg-1 audio, but seems to be it doesn't give the supported format, so as iPhone program doesn't play the video. Could someone please guide me how can i setup a desktop software which can stream iPhone supported file? Thanks in advance.

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What's created this key combo?

- by user73784

I've recently upgraded my iMac to OSX Mavericks. I'm finding that when I press Control-Shift-N something is immediately locking my screen and making it dark. I can still hear my streaming audio playing, so I guess it's not logging me out. I've looked carefully through the list of keyboard shortcuts in System Preferences, and that key combo isn't mentioned anywhere. Is there any place I can get a list of all active keyboard shortcuts? Is there any terminal command I can run to see which application has taken over this keypress combination? It's really annoying because I habitually use that combo in PHPStorm! (And yes, I have checked the keymaps there too.)

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Internet connection issue

- by Mr New

For some reason this laptop doesn't want to stay connected to the Internet... I have to restart the DHCP client service every time to fix the connection problem. Could someone tell me whats going on because I didn't have to usually do this? And I'm not sure if these problems are connected but the sound also disconnects itself and I have to enable it back, but everything that was using audio has to be restarted in order to hear it, even the browser? There are no external speakers and I didn't install any new software. My laptop is an XPS M1530, running Windows Vista.

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How to recover broken MJPEG AVI file after a camera crash

- by Jam K

I was recording a video when my KODAK EASYSHARE M531 Digital Camera fell to the ground and turned off. When i turned it on nothing happened to the camera but the video file is somehow broken. Obviously the camera did not have time to convert and close it properly. $file myvid.avi myvid.AVI: data where it should be: another_vid.AVI: RIFF (little-endian) data, AVI, 640 x 480, ~30 fps, video: Motion JPEG, audio: uLaw (stereo, 12000 Hz)` I would like to fix my video which I believe needs to be converted to AVI. Any idea? VLC does not play the file and returns: could not determine type of stream

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My computer keeps crashing and I just want it FIXED

- by xabaddon

So long story short, I had my brother build me a computer for my birthday last year. I saw how good his was (also built by him) so I decided I would have him build me one. About a month after this was all finished, my computer started crashing when I when run over 3 programs. For example, an online game, a music player (spotify), skype, and a browser with a few tabs open. The way it would crash is the screen will freeze and a buzzing noise will come from whatever audio device I am using (headset, speakers) I took it to a computer tech guy and he told me my cooling system was inadequate. SOOO he led me to buy a CORSAIR H75 Liquid cooling system. Everything was good for about a week, and now it just did the same thing again. I am so freaking over this guys and I really need some help figuring out what the heck is wrong, I dont care how long it takes, just please help me.

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Audigy 2 Coaxial to Coaxial/Optical connection possible?

- by Chris

Hello, The original question is deleted, and asked again below with accurate information. Edit: Excuse me for my ignorance, my friend has a Logitech Z-5500 set. I thought after comparing those systems on Google images that he had the Z-680, but he hasn't. This set has a single Digital coaxial for DVD or CD players or PC sound cards (requires coaxial cable, sold separately) cable. This single cable was connected to the orange tulip connector (SPDIF coaxial out) on the backside of his onboard HP Elite m9070, this connector is broken. How can I use the digital out with a single cable coaxial cable on the Audigy2 (see image below) (I have the following converters for my disposal, can I use one of these? 3.5 mm male - coax optical mini optical male - toslink optical female 2 x toslink optical female, toslink coupler, optical audio extension note: Is it possible to connect a toslink cable with an mini optical male - toslink converter on the digital out of the Audigy 2? (see image below)

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Free Video Editing Software for windows with storyboard mode

- by The Journeyman geek

My dad's currently using windows movie maker to try to make a video out of a series of JPEG images and some MP3s. He's not very happy with it, since Windows movie maker seems to downsample the source images he's used, and not very efficently - despite them being the same resolution as the output WMM is supposed to make, and the replaygain based audio level normalisation on the tracks don't work. So, i'd want a free programme that has storyboard mode (else i'd use visualdub) that'll not try to change the resolution of images used to make a video (assuming all images are the same resolution), and preferably accept the normalised mp3 files we're using. WMM isn't a option, since Its what i'm trying to find a replacement for.

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Creating a DVD-player compatible movie file

- by Robert Munteanu

I've created encoded a MPEG-4 file with mplayer and placed it on a DVD. The file is identified as RIFF (little-endian) data, AVI, 320 x 240, 25.00 fps, video: FFMpeg MPEG-4, audio: uncompressed PCM (stereo, 96000 Hz) I've tried playing it on a Samsung 1080p DVD player and the codecs were not recognised. There are no firmware upgrades available for my region (Romania). How should I pick the codecs to make sure that the files are readable by this DVD player? Update: The command line I used is similar to mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=1 -oac copy -o movie.avi mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=2 -oac copy -o movie.avi

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Back up of Streaming server

- by Maxwell

I want to take a new streaming server for my website which generally holds videos and audio files. But how do we maintain backup of the streaming server if storage size is increasing day by day. Generally on Database servers, like Sql Server, backups can be easily taken and restored very easily as they do not occupy much space for medium range applications. On the other hand how can we take backup of streaming server? If the server fails, the there should be an alternative server / solution that should decrease downtime of the server. How is the back-end architecture of YouTube built to handle this?

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Video from vhs via USB capture device on Linux

- by Juanlu001

I want to transfer video from a VHS tape to my computer with Arch Linux, using a USB capture device that comes with Roxio Easy VHS to DVD, which I recently bought. I tried to plug in the device, and it was properly recognized. From /var/log/messages.log, em28xx #0: Identified as Pinnacle Dazzle DVC 90/100/101/107 / Kaiser Baas Video to DVD maker / Kworld DVD Maker 2 (card=9) saa7115 3-0025: saa7113 found (1f7113d0e100000) @ 0x4a (em28xx #0) em28xx #0: Config register raw data: 0x50 em28xx #0: AC97 vendor ID = 0xffffffff em28xx #0: AC97 features = 0x6a90 em28xx #0: Empia 202 AC97 audio processor detected em28xx #0: v4l2 driver version 0.1.2 em28xx #0: V4L2 video device registered as video1 em28xx #0: V4L2 VBI device registered as vbi0 Is there any software that enables me to capture video coming from this device? I don't mind if it is console or GUI based.

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Call an member function implementing the {{#linkTo ...}} helper from javascript code

- by gonvaled

I am trying to replace this navigation menu: <nav> {{#linkTo "nodes" }}  {{t generic.nodes}} {{grayOut "(temporal)"}}{{/linkTo}} {{#linkTo "services" }}  {{t generic.services}}{{/linkTo}} {{#linkTo "agents" }}  {{t generic.agents}}{{/linkTo}} {{#linkTo "extensions" }}  {{t generic.extensions}}{{/linkTo}} {{#linkTo "voiceMenus" }}  {{t generic.voicemenus}}{{/linkTo}} {{#linkTo "queues" }}  {{t generic.queues}}{{/linkTo}} {{#linkTo "contacts" }}  {{t generic.contacts}}{{/linkTo}} {{#linkTo "accounts" }}  {{t generic.accounts}}{{/linkTo}} {{#linkTo "locators" }}  {{t generic.locators}}{{/linkTo}} {{#linkTo "phonelocations" }}  {{t generic.phonelocations}}{{/linkTo}} {{#linkTo "billing" }}  {{t generic.billing}}{{/linkTo}} {{#linkTo "profile" }}  {{t generic.profile}}{{/linkTo}} {{#linkTo "audio" }}  {{t generic.audio}}{{/linkTo}} {{#linkTo "editor" }}  {{t generic.node_editor}}{{/linkTo}} </nav> With a more dynamic version. What I am trying to do is to reproduce the html inside Ember.View.render, but I would like to reuse as much Ember functionality as possible. Specifically, I would like to reuse the {{#linkTo ...}} helper, with two goals: Reuse existing html rendering implemented in the {{#linkTo ...}} helper Get the same routing support that using the {{#linkTo ...}} in a template provides. How can I call this helper from within javascript code? This is my first (incomplete) attempt. The template: {{view SettingsApp.NavigationView}} And the view: var trans = Ember.I18n.t; var MAIN_MENU = [ { 'linkTo' : 'nodes', 'i-class' : 'icon-cloud', 'txt' : trans('generic.nodes') }, { 'linkTo' : 'services', 'i-class' : 'icon-phone', 'txt' : trans('generic.services') }, ]; function getNavIcon (data) { var linkTo = data.linkTo, i_class = data['i-class'], txt = data.txt; var html = '  ' + txt; return html; } SettingsApp.NavigationView = Ember.View.extend({ menu : MAIN_MENU, render: function(buffer) { for (var i=0, l=this.menu.length; i<l; i++) { var data = this.menu[i]; // TODO: call the ember function implementing the {{#linkTo ...}} helper buffer.push(getNavIcon(data)); } return buffer; } });

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Vista x64: Improving troubleshoot approach skills

- by Chau

I'm not a Windows SuperUser, but neither just the regular user. I don't mind browsing the Registry, using Process Explorer, reading the Event logs, (un)installing new drivers and so on, but all this only makes me solve some problems. I tend though to run into problems where these tools aren't enough. Which tools should I learn about to improve my troubleshooting skills in Windows? Currently I'm using Windows Vista x64 (not moved to 7 yet), facing audio/video stuttering problems and I think this is a good place to improve my troubleshooting skills. I know this post is similar to this question, but my machine is only hanging occationally. Specs: Intel Q6600 Stock speed ASUS P5QD Turbo 4GB ram NVIDIA GTS-8800 640 HDA Xplosion 7.1 Seasonic 430W Windows Vista Business x64

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Experiences using VLC for video-on-demand streaming? (VLM)

- by StackedCrooked

I'm considering my options for implementing a VOD service. Until recently my choices seemed to be either Wowza or Darwin, but now I discovered VLM, which looks really cool. I am going to stream MPEG4 H.264 video with AAC audio. I'm probably going to use the RTSP protocol, but I'm willing to use HTTP as well (after reading this article). Can anyone comment on his or her experiences with VLM? How does it compare to Darwin or Wowza? Is it stable and worthy of production use? Are there any limitations or performance problems?

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Windows Experience Index Dropped After Adding Dedicated Graphics Card

- by Ludo

I purchased a new PC with a Gigabye Z68X-UD3H-B3. I had a Radeon HD 5450 graphics card spare, so I've added that instead of using the onboard graphics as I just presumed it would be better. But, my windows experience index has gone down. From 5.4 to 5. Dekstop Performance has dropped from 5.4 to 5, although gaming graphics has gone up from 5.9 to 6.2. I'm not actually going to be using the machine for gaming, just audio production, but I added the card as I'll possibly be doing video editing in future too. Why would this be? Can I trust windows experience index scores? Or is it possible the onboard stuff is just better for general desktop stuff? Thanks! Ludo.

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snow leopard: how can i monitor loading of specific extensions?

- by ufk

Hiya. I'm installing VoodooHDA extension in order for Intel 82801I (ICH9 Family) HD Audio 8086:293E sound card to operate. The sound card does not work but i have no idea how to debug the issue. How can I check if the module was loaded properly? how can i make sure that there where no conflicts? how can i make sure that there were no dependencies issues with another module? Using snow leopard 64 bit. thanks!

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Wrong Sound Blaster's PCI ID within Windows

- by pavian

I own Sound Blaster X-Fi Titanium, it was working with no problems under Linux or Windows 7. It's original PCI ID is 1102:000b but now I see different within MS Windows. BIOS setup: 1102:000b GNU/Linux: 1102:000b Windows 7: 1102:000d Windows 8: 1102:000d In last days I'm experimenting with IOMMU PCI passthrough in Xen and I tried to pass this device to virtual Windows 7 and 8. Here I found this problem. I don't know if this is just coincidence or reason of my problem but it's wrong even in physical system. Windows detects 1102:000d as a High Definition Audio sound device (I guess this name, I have localized Windows, but this is general name, the same was with Realtek HDA before drivers), it's playing but it's unstable (Windows speaker testing can crash that application) and I can't install Creative software. Used driver is hdaudio.sys. Booting in BIOS or UEFI mode doesn't change anything. Nor CMOS clean. Someone met the same problem.

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'Game Show' presentation

- by albatross

I work at a state university, and every day of summer orientation we have a little jeopardy-like game that new students' parents play. We run it in an auditorium. Right now the game is a powerpoint presentation (set up similar to jeopardy) off an old laptop running Powerpoint 2003. What I want to do is to purchase & use a smaller tablet/mini-book with a touchscreen. The touchscreen would be much more professional than dragging a mouse around the screen to select category questions. I also want to use hot keys during the presentation for sound effects (for correct + incorrect answers), and I want to play music and show an automated slideshow (photos from the day). This device would need vga or hdmi and audio out. I've been looking at iPads and iPad alternatives, but figured someone out there might have a better idea or done this before.

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Computer not acknowledging sound card after move

- by Angela

We just got our computer back from having moved and when I tried to hook our speaker system, the computer keeps telling me that I don't have a sound system installed. It's a Dell computer with the original surround/subwoofer system that it came with and was working fine before the move. I tried buying a new speaker system (Logitech) to see if it would work, but still saying I have no audio device installed and it's not showing up in my device manager. I opened up the computer and unplugged the sound card, then plugged it back in, still nothing. I put the install disc from the sound card in the cd-rom, but it's saying that I have no sound device hardware in my system.

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ASP.NET RadioButton messing with the name (groupname)

- by Hojou

I got a templated control (a repeater) listing some text and other markup. Each item has a radiobutton associated with it, making it possible for the user to select ONE of the items created by the repeater. The repeater writes the radiobutton setting its id and name generated with the default asp.net naming convention making each radiobutton a full 'group'. This means all radiobuttons are independant on each other, which again unfortunately means i can select all radiobuttons at the same time. The radiobutton has the clever attribute 'groupname' used to set a common name so they get grouped together and thus should be dependant (so i can only select one at a time). The problem is - this doesn't work - the repeater makes sure the id and thus the name (which controls the grouping) are different. Since i use a repeater (could have been a listview or any other templated databound control) i can't use the RadioButtonList. So where does that leave me? I know i've had this problem before and solved it. I know almost every asp.net programmer must have had it too, so why can't i google and find a solid solution to the problem? I came across solutions to enforce the grouping by javascript (ugly!) or even to handle the radiobuttons as non-server controls, forcing me to do a Request.Form[name] to read the status. I also tried experimenting with overriding the name attribute on the PreRender event - unfortunately the owning page and masterpage again overrides this name to reflect the full id/name so i end up with the same wrong result. If you have no better solution than i posted, you are still very welcome to post your thoughts - atleast i'll know that my friend 'jack' is right about how messed up 'asp.net' is sometimes ;)

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Apache only transferring partial content from a Samba share

- by thaBadDawg

I have an Apache server running on CentOS 5.3. It currently hosts 12 sites with no known issues. (I say this to point out that up to this point my Apache installation has performed flawlessly) I'm adding a new site where the DocumentRoot of the new VirtualHost is a Samba share. When at the command line of the server I can cp video.m4v ~ and the whole file is copied properly to my home directory. But when I try to access the file from IE/Firefox/Safari/Chrome it only passes back a partial result of 33k. The same thing is happening with my image and audio files. If I make the files local to the server by copying them from the share and then serving them up then the files transfer. Any ideas?

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Calculate disk space occupied by many .png files

- by Alexander Farber

I have 357 .png files located in different sub dirs of the current dir: settings# find . -name \*.png |wc -l 357 settings# find . -name \*.png | head ./assets/authenticationIcons/audio.png ./assets/authenticationIcons/bbid.png ./assets/authenticationIcons/camera.png ./bin/icons/ca_video_chat.png ./bin/icons/ca_voice_control.png ./bin/icons/ca_vpn.png ./bin/icons/ca_wifi.png Is there a oneliner to calculate the total disk space occupied by them (before I pngcrush them)? I've tried (unsuccessfully): settings# find . -name \*.png | xargs du -s 4 ./assets/support/wifi_locked_icon_white.png 1 ./assets/support/wifi_vpn_icon_connected.png 1 ./assets/support/wi_fi.png 1 ./assets/support/wi_fi_conected.png 8 ./bin/blackberry-tablet-icon.png 2 ./bin/icons/ca_about.png 2 ./bin/icons/ca_accessibility.png 2 ./bin/icons/ca_accounts.png 2 ./bin/icons/ca_airplane_mode.png 2 ./bin/icons/ca_application_permissions.png 1 ./bin/icons/ca_balance.png

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- by Joel Coehoorn

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- by user73784

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- by Jam K

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