Use The Core Audio API In VB 2010?
May 20, 2012I've been trying, without any luck whatsoever, to figure out how to use the Core Audio API in VB 2010. I started by downloading a wrapper dll located here: [URL]
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Audio Management System - Allow User To Add Audio Files Itself Into Database Together With Audio Information
Jan 28, 2010I'm developing a standslone system for my school project. I'm developing an audio management system which allow user to add audio files itself into database together with the audio information such as artist name and album year. I just started it few days ago and face some problems.. my song in the playlist wont continue to play after 1 finished and i need some idea on how to store the audio files into database ... in blob types may be?
Heres the screenshot and codes
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bt_add.Click
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Make A Code That Sends One Application Or Program In 1 Core And Other Application In Other Core?
Jan 29, 2010I'm using VB 2008, and I have a dual core computer.Is it possible to make a code that sends one application or program in 1 core, and other application in the other core?
View 1 RepliesVS 2010 Adding System.Core?
Feb 5, 2010Somehow the reference to System.Core got removed from one of my projects, which I think is causing some issues. If I try to re-add it to my references I get a message saying "A reference to 'System.Core' could not be added. This component is already automatically referenced by the build system". I think I need this reference because it is there when I start a new project by default
View 1 RepliesVS 2010 Referenced Component System.Core Could Not Be Found?
Mar 24, 2011When my application loads in Visual Studio 2010 I see this warning. Everything runs ok in it as far as I'm aware but I'm completely ignorant in this area. Could that cause me a problem and is there a way to replace that component? There is also the other warning you see in the screenshot.
Quote:Warning1Namespace or type specified in the project-level Imports 'System.Linq' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases.
I did a search for the entire solution and it didn't turn up any Sysem.Linq anywhere. I looked at every Imports statement in my project and I don't have any Imports System.Linq anywhere unless it's somewhere where Visual Studio's quick find search doesn't see it.
IDE :: Core Coding Experience Live Meeting The Visual Studio 2010 Team?
May 26, 2009Code Coring Experience Live Meeting the Visual Studio Team Visual C# and Visual Basic languages continue to evolve towards feature parity, strive to simplify programming and deployment with the Microsoft Office APIs, and allow easy interop to dynamic languages. In the tools space, Visual Studio 2010 offers greater support for Test-Driven Development, where tests are written before product code as an iterative approach to software design. In this interactive session you will get a chance to connect with the two Program Managers DJ Park and Dustin Campbell as they walk through the feature areas they feel will have the greatest impact to you and your development teams.
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Audio Converter And Compressor - Audio & Video - Dream.In.Code
Mar 13, 2009I just want to ask or I need some idea on how to convert wav files to mp3 and compressed the file to make the size smaller. I've search on the internet and find vorbis.dll as a reference object and lame.exe for converter. With regards to the audio compression, i downloaded monkey's audio software but doesnt have an idea on how to incorporate it.
View 2 RepliesVS 2008 Recording Audio - Capture The Audio Played On My Laptop
Jun 11, 2009Im trying to capture the audio played on my laptop. so i have searched the internet and found a source code for doing exactly that. the problem i have is that my audio device is not listed in the dropdown box (see picture) but it does when its run on windows xp (im running windows 7 x64) the goal of this application would be to capture my friends radio stream and save the individual played mp3's to a loction on my hard drive.(yes i have permission) i have included the source code so perhaps some 1 could have a look at it. (source code)[URL]
View 2 RepliesMake A VU Meter For Audio To Monitor Audio Input?
Feb 26, 2007make a VU meter for Audio to monitor audio input devices volume level such as microphone and etc?
View 7 RepliesRouting Modem Audio Out To SR Engine Audio Input Under VB / VBA?
May 20, 2009I have a database application developed around Access with VBA,I have used the Speech SDK and developed an application that in conjunction with MSCOMM 6.0 library calls into a remote IVR system.It sends in the credentials and queries information in response to that IVR's verbal requests. All seems successfull except for one problem;I'm using a shared SR engine and its using the system microphone as its audio input, this in turn gets the sound from the speakers which are routed to the telephone line through the modem. Of course this has a number of disadvantages - noise added to the sound from the environment and sound quality degredation as well as speaker volume dependency.
I would like the SR engine to take its audio input from the modem in paralell with the sound that goes to the speakers (so we can listen in to the call as well). This means that I must route the system audio output to the SR engine audio input. It seems that I must use an InProc SR instance - however in VBA that type is not recognized - since the shared SR uses the microphone as input by default. there is some statement to the effect that it is difficult in Microsoft's Help file. I'm unable to set the SR audio input to the modem output stream in VBA.As needed I can accomplish the C++ interface using an ActiveX object or a DLL to expose the missing API to VBA?
Recording An Audio Signal In .NET 2010?
May 24, 2011I have been all over this site looking at and trying example code, but none of it seems to work properly on my computer. I just want a simple program in VB.NET 2010 that can record a .wav file from my computer / line-in microphone. I am somewhat familiar with VB, but I still consider myself a novice and I don't really know all of the audio jargin. [URL]..
View 5 RepliesVS 2010 - How To Make Audio Converter
Jun 25, 2010Well how can I make an Audio Converter?
View 6 RepliesVS 2010 - Realtime Audio / VST Effect / Minimize ?
Feb 13, 2011What I want to do, for one, is record audio through a microphone input, then play it back with only a few milliseconds delay. Maybe a way to do this would be to record, say, 200 milliseconds, save it to a temp folder, play it, then delete and repeat? I don't know. Would my idea work? Second, I want to use a VST dll file as an effect on this audio. I have absolutely no clue as to how I could do this. (Third one is optional, not really needed, but would be nice. you don't have to answer this third one) Third, I want to minimize the feedback. An idea of mine is maybe a frequency cut off, anything above avg human voice frequencies?
View 2 RepliesVS 2010 : Check If Audio Is Going Through Sound Card?
May 14, 2012I was wondering what sorta code you would you to check if audio is going though a sound card?I am designing a media player and I would like to show that audio is playing.
View 4 RepliesVS 2010 Audio Playback On Multiple Devices?
Jan 9, 2012What I need is an application that can have several audio files open up, which in turn can be routed to any of the audio output devices (e.g. external audio card channels). See the attached image for an illustration.
View 1 RepliesXp Audio Auto-fader In Express 2010
Apr 7, 2012Need to know if it is possible to use vb to either fade up or fade down the line in channel of the windows mixer in xp pro purely by system time. I can't find anything like this on the web.
Have a hospital radio setup that uses zararadio to schedule prerecorded material and live studio on a 12/24 7/7 basis to a non air audience. When off air the station rebroadcasts a local radio station sourced from an fm receiver.
The zara software can only switch the line in carrying the local station, it cannot crossfade or fade in/out and the twice daily transitions sound dreadful. The xp box and the software are synced to internet time twice daily so the timing errors are very small. Currently the zara software mutes and unmutes the line in as a timed event, accurate to the second.
I know how to read the system time and use it to drive an event, but have no knowledge of the windows mixer. I'm looking for maybe a 3 to 5 second fade at each twice daily transition. There is no requirement for user interaction and the code should auto run and survive a reboot.
Reading And Modifying MP3 Audio-file Metadata With VB 2010?
Oct 8, 2010Does VB 2010 offer native support for reading and modifying ID3 metadata in MP3 files? A brief search through MSDN shows me nothing, and I see someone says he had to write his own library of code for it. But that was some years ago, when you had to write code to access JPEG Exif metadata, and I know that's changed with the Image class and the GetPropertyItem method; so I'm hoping MP3 files have their own methods and properties now for this.
View 4 RepliesVS 2010 Cannot Dispose DirectX Audio Object After Playing?
Nov 14, 2011I'm playing an audio file like so:
VB.NET Dim audio As New Audio(Application.StartupPath & "est.wav", True) audio.Balance = 10000 audio.Play()
Which works great. But if I need to change that file, I get an UnauthorizedException because the I haven't disposed of it. But, if I add a dispose after .Play, it won't play.
Play Audio After The Previous Audio
Sep 23, 2009how can i play the audio after the previous audio play is finish by using directx.
assume i have audio1.wav and audio2.wav.
i play audio1.wav by this code.
audio1 = audio.fromfile("D:audio1.wav", false)
how can i play audio2.wav after audio1.wav is finish? without use any button or signal. just depends on when the audio1.wav is finish, then audio2.wav will play automatically.
Using More Than One Of Cpu Core?
Feb 9, 2011i have intel core quad cpu but my program cant use more than one of cores(it use 25% of cpu power but i want use 50% and more).
affinity is "<All Processors>" and all of cores are selected.
is there any way can use more than 50% of cpu power.
Set A Certain Thread To Run On The 2nd Core?
Dec 21, 2009how i can set a certain thread to run on the 2nd core for eg...
View 8 RepliesFor Loop CPU 25% Single Core
Oct 15, 2010For loop CPU 25% single core
View 6 RepliesPossible To Split Up Threads (currently 6) So That 3 Run On Each Core?
Oct 18, 2011I have a VB.NET app that spawns several threads for performing XML parsing/database interaction. Only one of my cores (only have 2 currently) is being used right now.I've looked at Task Parallelism in .NET 4 but I need to be able to start a task at different times (not all at once).Is it possible to split up the threads (currently 6) so that 3 run on each core? Also, if I don't want to limit my threads to 6, how can I check CPU/memory programmatically to find out if I can start another thread.
View 2 Replies.net - Null Reference Exception DNN Core 5.6.3
Jul 26, 2011My site has been running fine for sometime now until recently I see in the event viewer a null reference exception in the DNN core:
DotNetNuke.Common.Globals.GetStatus() in
F:BuildsMaintenanceWorkingDirectoryLibraryCommonGlobals.vb:line
1125 at DotNetNuke.Common.Initialize.InitializeApp(HttpApplication
app) in
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the line 1125 is:
_Status = UpgradeStatus.None
Which is a property of the Globals class and an Enum Also when this happens it doesnt just do it once then sort its self it does it roughly every minute for an hour or so.I made sure all dataprovider.instances are either in a using or a try catch finally or self closing(if the reader is not used)?
Calcualte CPU Usage For An X-Core Machine?
Aug 2, 2010Trying to make a badly archictected system work. In doing so we have ourselves in a postion of shelling mulitple instances of a program and managing the running processes. On startup the shelled program is CPU intensive and we need to limit the rate that we initiate the instances based on the CPU load. How do you calculate the CPU load of a multicore system?
View 1 RepliesChange Priority And Core Using For Each Process?
Feb 24, 2009How can i change a process using only 1 core instead of 2 cores? Also, how can I set different prioritys to each process?As it does not save the settings which i put to each process in taskmanager on restart, i decided to make a program so i could simply click a button so it would change the settings for each process i want.For example:With a simple button click it changes msnmsgr.exe priority to low and makes it use only the 1st core.
View 2 RepliesGet Core And Memory Clocks Of Gpu Using Win32_VideoController?
Feb 8, 2012How can i get the core and memory clocks of the gpu using the Win32_VideoController?
View 1 RepliesWhere Is Microsoft.Office.Core.NewFile
Apr 20, 2012I'm getting the error below trying to open a new workbook in Excel:
Imports Microsoft.Office.Core
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Dim myExcel As New Excel.Application
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C# - Multithreading On A Multi Core Machines Not Maxing CPU?
Jul 14, 2009I am working on maintaining someone else's code that is using multithreading, via two methods:
1: ThreadPool.QueueUserWorkItem(New WaitCallback(AddressOf ReadData), objUpdateItem)
2: Dim aThread As New Thread(AddressOf LoadCache) aThread.Start()
However, on a dual core machine, I am only getting 50% CPU utlilization, and on a dual core with hyperthreadin enabled machine, I am only getting 25% CPU utilization. Obviously threading is extremely complicated, but this behaviour would seem to indicate that I am not understanding some simple fundamental fact?
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And this is occurring in a recursive function, so the QueueUserWorkItem can be executing multiple times, which in turn then executes exactly one new thread via the aThread.Start
Hopefully that gives a decent idea of how things are happening. under this scenario, should this not theoretically pin both cores, rather than maxing out at 100% on one core, while the other core is essentially idle?
Collect Information From Core Temp And Use It As A Variable Within VB?
Dec 25, 2011collect information from core temp ( how to gain information about the CPU directly from the motherboard or windows E.G temperature CPU name ) and use it as a variable within VB.
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