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Posted on Sep 12, 2010
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Pointer on track pad moves on its own. it does not move along with finger and goes in jerky direction elsewhere.

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  • Expert 160 Answers
  • Posted on Aug 13, 2011
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Joined: Feb 18, 2009
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Did water get on the track pad? Try connecting an external mouse to get control over your pointer, and navigate to system preferences/track pad. See if you can play around with the settings, but if the external mouse works ok, it sounds like water may have come in contact with your track pad.

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New strings on acoustic guitar need to reduce the squeaking

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Find out where It squeaks most

The first, and most important technique is actually being aware that the finger noise is there. A lot of players have just turned out to that squeaky sound and think nothing of it. So, as a self-diagnosis, grab a recording device like your smartphone, and your guitar will work just fine. When you've recorded the song, playback and see if there are any patterns or any particular chord progressions where the noise is more noticeable.

Learn To Release Pressure Gently

Perhaps the simplest way to get around these string squeaks is simply to lift and shift. By lifting the left-hand finger you are avoiding the drag along the string. Once you have identified the problem progressions, practice playing through them, but slowly. Take your time, and after you have played the chord or note, lift your fretting fingers gently until there's no downward pressure on the string but your fingers are still in contact, this will help to avoid accidental open notes being played.

Practice contactless transition

After you have mastered the slow release of the fretting hand, the next step is to work on contactless transition. While you're practising, make this a slow and purposeful manoeuvre, in fact, think of it as 2 separate actions - lifting your fingers clear of the strings, then moving your hand to the next position. Be careful to lift your fingers directly off the strings in a nice smooth motion - if you make the action jerky, or you remove them at an angle, you may end up playing unintended pull-offs.

Move to the next chord

When your fingers are clear of the strings, move your hand to the next position while consciously avoiding contact with them. Once you're in the correct position, place your fingers directly down on the strings. This can take quite a lot of practice to avoid having to make small adjustments after touching down.

Start Using Pad

More of a noise reduction than noise cancellation, you can help string noise by shifting along the string with the soft pad of your finger rather than the callused tip. The tip of your finger is hard because you have been doing oh so many hours of practice, and that tough skin makes a loud noise on the string. If you try and slide the pad of your finger along the string you will notice that it is actually less noisy. So, if you can't avoid the slide along the string then rotate your finger a bit so that you can shift on the pad rather than the tip.

Moisturize Your Plans & Figures

This one is more so for your hands than your guitar, but failing all else, keeping your hands moisturised will make them softer and smoother, which in turn will reduce acoustic string noise as you transition between notes and chords.

Squeaking happens in every guitar a little less or more, but Make sure you use the best guitar parts which suits your style and body posture.

If you're just getting started in your guitar journey, it should be straightforward to get into the habit of consciously lifting your fingers between transitions, but, if you've been playing a while, it will definitely take a lot of practice to adjust your muscle memory. The key is to start slow, and make every move purposeful.
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