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<blockquote data-quote="vicksen" data-source="post: 1552228" data-attributes="member: 315597">I know the original post is over a year old, but thought I'd check and see if there is any status update on this?I have a similar problem on my MacBook Pro Early 2008, which appeared within the last year..perhaps shortly after I replaced the hard drive:-The high pitched noise appears as soon as any app activates sound, regardless of whether or not it's input/output. It disappears shortly after the app is shut down or the playback is stopped.-It occurs even when speakers and microphones are muted, while an app using sound is active.-The sound is also audible when headphones or external speakers are connected, again only while an app is using sound.-Input and Output functions otherwise completely normally.I'm assuming that this is some kind of issue with perhaps an internal audio cable or the I/O system...has anyone come across a fix for this?</blockquote>

[QUOTE="vicksen, post: 1552228, member: 315597"] I know the original post is over a year old, but thought I'd check and see if there is any status update on this? I have a similar problem on my MacBook Pro Early 2008, which appeared within the last year..perhaps shortly after I replaced the hard drive: -The high pitched noise appears as soon as any app activates sound, regardless of whether or not it's input/output. It disappears shortly after the app is shut down or the playback is stopped. -It occurs even when speakers and microphones are muted, while an app using sound is active. -The sound is also audible when headphones or external speakers are connected, again only while an app is using sound. -Input and Output functions otherwise completely normally. I'm assuming that this is some kind of issue with perhaps an internal audio cable or the I/O system...has anyone come across a fix for this? [/QUOTE]

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