Question about Apple Bose QuietComfort 2 Acoustic Noise Cancelling - Headphones ( ear-cup ) - noise canceling

4 Answers

Bose QC3 makes a high pitch noise when i press it against my ear

When press against my right ear, my bose QC3 delivers a high pitch sound .

Posted by on

  • alexrochah
    alexrochah Aug 02, 2012

    Try wearing them the "wrong way". Left side of the headset on your right ear & right side of your headset on your left ear. I have the QC15 and it worked for me. Good luck!

  • Anonymous Mar 16, 2014

    bose qc3 not charging

×

4 Answers

  • Level 1:

    An expert who has achieved level 1.

    Governor:

    An expert whose answer got voted for 20 times.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 17 Answers

The design of these headphones includes a microphone on the outside and on the inside of each earcup. The outside microphone detects outside noise. The inside microphone monitors what you are hearing and when it detects that the outside noise is present inside, the active noise-canceling circuits remove that noise. This happens fast enough that you perceive a siginficant reduction in the outside noise getting to your ears.

The airspace inside the earcup is a tuned chamber defined by the foam in the ear cushion. This is important because with the inside microphone in close proximity, but at a 90-degree angle to the speaker, the circuit must be designed to eliminate the normal feedback that occurs. When you press the earcup close to your ear, you are changing the size and shape of the air chamber inside of the earcup thus directing more of the speaker sound toward the microphone than the design can compensate for causing audio feedback to occur. You are hearing that feedback. Removing your hand from the earcup should restore the shape of the air chamber allowing the circuits to return to normal operation.

If the feedback occurs too easily when you are NOT pressing on the earcup, then the foam may have weakened/deteriorated and it may be time to replace the ear cushion.

On my QC-3 headphones, I can cause the feedback squeal in both earcups, with the left earcup being more sensitive to the shape change than the right.

Posted on Oct 22, 2013

  • Level 1:

    An expert who has achieved level 1.

    Governor:

    An expert whose answer got voted for 20 times.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 9 Answers

I have had problems with my headphones as well from Bose QC3's. They will give you a new pair for $100, even if it has been longer than a year...

http://riajournal.com/ria/index.php/2009/04/25/bose-gets-5-stars-in-my-book-for-their-qc3-headphones/

Posted on Apr 26, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

As DIY - Dan has tightly mentioned, when the ear cups foam deteroits, the inside micor phone gets kind of too active and hence we get this high untollerable pitch. I have checkedon other websites as well and found that by replacing the ear cups, we can easily get ridif this noice. I have a pair of Bose QC3 which is experiencing same problem and I am going to order a pair of new ear cushions. Good luck to you as wel.

Posted on Aug 23, 2015

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

Try wearing the headset the "wrong way". The left side of the headset on your right ear & the right side of the headset on your left ear. I have the QC15 with the same problem and it worked for me. Good luck!

Posted on Aug 02, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Rattling in left earcup


Sounds like you have blown out the cone on the speaker. Have you removed the covering to see if the speaker in that earphone is intact?

Feb 10, 2014 | Bose QuietComfort 15 Headphones

1 Answer

Severe squelch in left ear phone


The design of these headphones includes a microphone on the outside and on the inside of each earcup. The outside microphone detects outside noise. The inside microphone monitors what you are hearing and when it detects that the outside noise is present inside, the active noise-canceling circuits remove that noise. This happens fast enough that you perceive a significant reduction in the outside noise getting to your ears.

The airspace inside the earcup is a tuned chamber defined by the shape of the foam in the ear cushion. This is important because with the inside microphone in close proximity, but at a 90-degree angle to the speaker, the circuit must be designed to eliminate the normal feedback that occurs.

If the foam in the ear cushion has weakened/deteriorated to the point that it no longer has it's original shape, (in particular the lower half of the ear cushion), the size and shape of the air chamber inside of the earcup is directing more of the speaker sound toward the microphone than the design can compensate for causing audio feedback to occur. You are hearing that feedback.

On my QC-3 headphones, I can cause the feedback squeal in both earcups, with the left earcup being more sensitive to the shape change than the right.

It is probably time to replace the ear cushions. If so, they are available from Bose for $35/pair.

QuietComfort 3 Acoustic Noise Cancelling Headphones Bose Product Support

They are also available aftermarket at Amazon.com for $16.99/pair
Replacement Earpad ear pad Cushions For Bose QuietComfort 3 QC3 Headphones...

or $5.69/pair.
Bluecell Pair of Replacement Earpad Ear Pad Cushion for Bose Quietcomfort...

Aug 29, 2013 | Bose QuietComfort 3 Acoustic Noise...

1 Answer

How to replace ear cushion on bose QC 3 headphone


The ear cushions are held on the earcup with six snap fasteners, three on each side. To remove the ear cushion, simply pull it away from the earcup carefully so that you do not break the plastic snap tabs.

It should not be necessary to pry the ear cushion off with a sharp object, but if you do, be careful. There is also a thin gasket seal between the earcup and the ear cushion, take care not to damage it.

If you need to replace the ear cushions with new ones, they are available from Bose for $35/pair.

QuietComfort 3 Acoustic Noise Cancelling Headphones Bose Product Support

They are also available aftermarket at Amazon.com for $16.99/pair
Replacement Earpad ear pad Cushions For Bose QuietComfort 3 QC3 Headphones...

or $5.69/pair.
Bluecell Pair of Replacement Earpad Ear Pad Cushion for Bose Quietcomfort...

Apr 02, 2013 | Bose QuietComfort 3 Acoustic Noise...

1 Answer

My headphone, once side where the ear cup joiner with the top bit was broken. Can I get it fix? Thanks


Call Bose 1-800-999-2673 they sell replacment ear cushions for the QC3 I paid $38 for two.

Nov 28, 2011 | Bose QuietComfort 3 Acoustic Noise...

1 Answer

My QC3 make a loud whistling noise like a tea pot is boiling. I have changed my Ear Cups but thats it. I thought at first there was air entering from the small holes or that my battery was almost dead....


that happened to me when i was at the beach and had wind blowing. it stayed for several days but it seems to have gone after it was left with the battery disconnected for a few days .i would get them replaced under the Bose replacement program for $100 us

Mar 07, 2011 | Bose QuietComfort 3 Acoustic Noise...

2 Answers

Hello, I just got a Bose QC3 on eBay. It works fine except the cable which is not the original one but a one from T'nB and the left earpiece has a very annoying whistling noise when I press it or even...


i would buy a new ear cup.and a new battery. and perhaps a new cord.
i had a problem w/ my ear cups and i noticed that when i bought the new ear cups the sound was better.
i also read that if the battery got alot of usage (4 plus year) then the whistling noise comes from that. i'm starting to have the same problem. i have had my headphones for a long time. i think like anything else that operates on batteries its time to change it.

Mar 06, 2011 | Bose QuietComfort 3 Acoustic Noise...

2 Answers

Feedback sound like wind noise in right headphone of QC3, starts quietly and gradually gains in strength. Sometimes disappears, then comes back again. No sign of moisture in battery compartment. Any ideas?


The design of these headphones includes a microphone on the outside and on the inside of each earcup. The outside microphone detects outside noise. The inside microphone monitors what you are hearing and when it detects that the outside noise is present inside, the active noise-canceling circuits remove that noise. This happens fast enough that you perceive a siginficant reduction in the outside noise getting to your ears.

The airspace inside the lower half of the earcup is a tuned chamber defined by the foam in the ear cushion. This is important because with the inside microphone in close proximity, but at a 90-degree angle to the speaker, the circuit must be designed to eliminate the normal feedback that occurs. When the foam has weakened or deteriorated to the point that the size and shape of the chamber cannot be maintained, more of the speaker sound is directed toward the microphone than the design can compensate for causing audio feedback to occur. This also happens when the lower half of the ear cushion is compressed. Since this is occuring during normal use,
it may be time to replace the ear cushions. They are available from Bose for $35 per pair.

http://www.bose.com/controller?url=/shop_online/headphones/noise_cancelling_headphones/accessories/qc3_earcushionkit_acc.jsp

Sep 18, 2009 | Bose QuietComfort 3 Acoustic Noise...

1 Answer

My Bose Triport Headphones have lose cords with exposed wire.


They will give you a new pair for $100, even if it has been longer than a year...

http://riajournal.com/ria/index.php/2009/04/25/bose-gets-5-stars-in-my-book-for-their-qc3-headphones/

Apr 25, 2009 | Bose QuietComfort 3 Acoustic Noise...

2 Answers

Slft earcup on QC3 broke off


They will give you a new pair for $100, even if it has been longer than a year...

http://riajournal.com/ria/index.php/2009/04/25/bose-gets-5-stars-in-my-book-for-their-qc3-headphones/


Apr 16, 2009 | Bose QuietComfort 3 Acoustic Noise...

2 Answers

Only the left earcup works, even if i change the wire, its the same. but noise cancelling works on both.


They will give you a new pair for $100, even if it has been longer than a year...

http://riajournal.com/ria/index.php/2009/04/25/bose-gets-5-stars-in-my-book-for-their-qc3-headphones/

Dec 23, 2008 | Bose QuietComfort 3 Acoustic Noise...

Not finding what you are looking for?
Apple Bose QuietComfort 2 Acoustic Noise Cancelling - Headphones ( ear-cup ) - noise canceling Logo

3,413 people viewed this question

Ask a Question

Usually answered in minutes!

Top Apple Headphones Experts

yadayada
yadayada

Level 3 Expert

60867 Answers

rdjagger

Level 3 Expert

1693 Answers

ray gallant

Level 3 Expert

36306 Answers

Are you an Apple Headphone Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...