Microsoft KB Archive/303784

= Overdriven Audio with Osprey 500 Capture Card =

Article ID: 303784

Article Last Modified on 10/24/2003

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APPLIES TO


 * Microsoft Windows Media Encoder 7.0
 * Microsoft Windows Media Encoder 7.1

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This article was previously published under Q303784



NOTE: The information included in this article has been provided by a third party. This information is subject to change without notice. Microsoft in no way guarantees the accuracy of this third-party information.



SYMPTOMS
When you try to capture balanced audio with your Osprey-500 DV, Pro, or DVPro by using your Beta Cam deck, you may experience clipped audio through the XLR audio inputs.



CAUSE
The Osprey-500 was designed to support multiple audio sources, such as unbalanced, balanced, and digital audio. The balanced audio source for the card was originally designed to allow for a mic-level input without amplification. A hardware gain was added to the balanced audio circuit to allow these mic-level signals to be captured. However, there is an issue that can arise from this solution. While many balanced line-level audio sources (VTRs, mixers, and so on) have the ability to configure their output dB level, some do not. Those sources that do not have this ability and that have a high output dB level may experience audio clipping.



RESOLUTION
Osprey has implemented an engineering change to reduce the hardware gain on the card, which resolves the issue. If you have a BetaCam deck or similar source that cannot attenuate or lower the balanced audio signal prior to being fed to the Osprey card, contact Osprey support at the following e-mail address:

support@viewcast.com

NOTE: If your audio source is able to set the output level range from -6 to 0 dB, your Osprey-500 card does not require this hardware change.



MORE INFORMATION
The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Additional query words: netshow wms over driven fuzzy noisy

Keywords: kbprb kbpending KB303784

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