Audio

In this article I demonstrate how to record from the microphone in .NET, with support for setting the recording level, trimming noise from the start and end, visualizing the waveform in WPF and converting to MP3. Audio Recording in .NET The .NET framework does not provide any direct support for…

In this article I demonstrate how you can create your own audio effects in .NET to manipulate digital audio at the sample level. These effects are used to process MP3 files while they are being played back, and to process the real-time microphone input allowing you to change your voice during a…

For the longest time, I've been baffled by the concept of sound in computing. How in the world is sound store? How is it played back? In classic Coding4Fun style, we'll learn by doing in this article—by building a wave oscillator application. Optional Reading I cover the basics of this article in…

We've all cringed as a hopelessly out of tune contestant appears on the latest episode of “American Idol.” Occasionally, there's a contestant who manages to be pitch perfect all the way through—right until they flub the final note. And in the cutthroat world of televised auditions, sing one…

This article will take you through some of the steps to creating the basics for writing games with Silverlight. This is a simple shooter style game that contains some of the building blocks for games that require abilities such as vectors, collision detection, a game loop, movement, and keyboard…

Charles recently caught up with seasoned Niner, Larry Osterman, an SDE and 20 year Microsoft veteran, and Elliot H Omiya, a Software Architect and audio guru, to dig into the innerworkings of Vista's updated Audio Stack and new user mode API. Much of the guts of Windows audio have…

Mark Heath (of NAudio fame) recently published a how-to article for Coding4Fun that shows how he plugged into Skype's audio APIs to dynamically apply different sound effects to the audio stream to mask your voice. To see it in action, we setup a Skype connection between me and…

Ever use a headset with Skype – and were frustrated that it was too quiet? This article shows how to add the sound of your own voice to the headset and not feel exhausted from shouting to be heard. Skype: I find your lack of feedback disturbing. This article will discuss how to build a software…

This article describes a quick and easy application to play Halloween tricks on the PC. Introduction This article describes “Gremlin”, a quick and easy application that lets you play Halloween tricks. When your victim's computer is idle, Gremlin moves windows around on the screen, changes the…

The Microsoft SoundLab is a group at Microsoft that supports our needs for sounds and sound effects, mostly for video games. They have handled most of the Microsoft Game Studio sounds, for games like Halo, Fable, and Forza. Mike Caviezel walks us through the SoundLab and talks about what it's…