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Static in audio playback if PC goes to sleep while recording the audio in Sound Recorder

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Symptoms

Consider the following scenario:

  • On a PC running Windows 7 or Windows 8 with Connected Standby, you are using Sound Recorder to make an audio recording.
  • The PC goes to sleep (S3) while the recording is in progress. The recording will stop while the system is in S3.
  • The PC resumes and the audio recording resumes.

In this scenario, when the audio is played back, you may notice noise or static in the recording. This only occurs in the audio recorded after the PC was resumed. 

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Cause

This is due to a change in the recording frequency while the PC is resuming and is a bug in Sound Recorder that is exposed on some hardware.

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Resolution

To workaround this issue:

  1. Stop the recording before putting the PC to sleep and then start a new recording on resume.
  2. Use an application other than Sound Recorder to record the audio.

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Keywords: kb

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Article Info
Article ID : 2362568
Revision : 1
Created on : 1/7/2017
Published on : 6/28/2013
Exists online : False
Views : 383