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What’s up with the Beep driver in Windows 7?

Earlier today, someone asked me why 64bit versions of windows don’t support the internal PC speaker beeps.  The answer is somewhat complicated and ends up being an interesting intersection between a host of conflicting tensions in the PC ecosystem. Read More...
Posted Monday, January 04, 2010 2:28 PM by LarryOsterman | 49 Comments

The evolution of a data structure - the WAVEFORMAT.

In the beginning, there was a need to be able to describe the format contained in a stream of audio data. And thus the WAVEFORMAT structure was born in Windows 3.1. typedef struct WAVEFORMAT { WORD wFormatTag; WORD nChannels; DWORD nSamplesPerSec; DWORD Read More...
Posted Thursday, October 18, 2007 3:13 PM by LarryOsterman | 13 Comments
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The dreaded "beeping death"

Anyone who's been at Microsoft for long enough (long enough to use DOS on a day-to-day basis) remembers the deadly "beeping death". The "beeping death" was an artifact of the MS-NET product that we deployed for networking here at Microsoft, and I was Read More...
Posted Wednesday, November 09, 2005 8:57 AM by LarryOsterman | 11 Comments

Beep Beep

What's the deal with the Beep () API anyway? It's one of the oldest Windows API, dating back to Windows 1.0. It's also one of the few audio APIs that my team doesn't own. The Beep API actually has its own dedicated driver (beep.sys). The reason for this Read More...
Posted Friday, November 04, 2005 10:55 PM by LarryOsterman | 44 Comments
 
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