IPB

Welcome Guest ( Log In | Register )

Poor Bass with headphones
Liner
post Jan 11 2013, 06:43
Post #1





Group: Members
Posts: 4
Joined: 11-January 13
Member No.: 105789



Hello, I have recently purchased a new laptop and was a little turned off when I realized the audio quality was less than impressive (I wasn't expecting much to begin with). I thought that when I used my pair of earbuds it would sound better as I know that the quality of the bass, when I used the headphones in my other computer or mp3 player, is very good. But when I use them in my laptop I get almost no bass and overall poor sound quality. I, yesterday, purchased a pair of over ear headphone (turtlebeach Z2) and still the audio quality didn't improve whatsoever. I know from experience with other turtle beach products that they have excellent bass processing, at least better than what I am getting now. Is there anything I can do to get the full sound quality that I should be getting. I hope I don't get responses saying that its my earbuds/beaches that are the problem, because I know from experience that they both have excellent bass capabilities when used in my computer, xbox, mp3 player, etc.... I have seen a few other threads on this, but haven't really found an answer. Any help would be much appreciated!
Go to the top of the page
+Quote Post
 
Start new topic
Replies
Seren
post Jan 11 2013, 07:20
Post #2





Group: Members
Posts: 59
Joined: 1-November 12
Member No.: 104244



Only thing I can suggest is to look for sound drivers for the laptop or turn off any added effects the OEM may have activated.
Go to the top of the page
+Quote Post
Dynamic
post Jan 11 2013, 11:03
Post #3





Group: Members
Posts: 832
Joined: 17-September 06
Member No.: 35307



QUOTE (Seren @ Jan 11 2013, 06:20) *
Only thing I can suggest is to look for sound drivers for the laptop or turn off any added effects the OEM may have activated.


Or possibly on the old laptop you had some effect activated to suit your tastes which is not active on the new laptop.

For example in Windows 7, there's usually something like:
Volume Context Menu/Playback Devices/[specific device used]/Properties/Enhancements/Bass Boost (or possibly even Room Correction)
that can affect the frequency response as well as Disable All Enhancements.

(On my laptop, I have a separate entry for headphones, but the Speakers setting controls both headphones and speakers, so try something to check you're adjusting or checking the right 'playback device')

I guess we can eliminate high output impedance trying to drive a low-impedance load, because your Turtlebeach Z2 are 32 ohm impedance and the earbuds are likely to be similar, which ought to be fine.

Does the Z2 have a combined microphone and headphone 3.5mm jack plug? That might be a potential problem in a standard stereo headphone-only socket perhaps.

Also there are some audio devices specifically tailored to be non-flat (e.g. ~20 dB bass boost present in one 'stylish' CD player's headphone jack & speaker output with no adjustment available).

A loopback test (or input to a PC soundcard with a line-in port - usually lacking on laptops) might be revealing if there's a problem with your settings. You could compare the spectrum of captured and original audio or even run a RMAA test.
Go to the top of the page
+Quote Post
skamp
post Jan 12 2013, 09:45
Post #4





Group: Developer
Posts: 1453
Joined: 4-May 04
From: France
Member No.: 13875



QUOTE (Dynamic @ Jan 11 2013, 11:03) *
I guess we can eliminate high output impedance trying to drive a low-impedance load, because your Turtlebeach Z2 are 32 ohm impedance and the earbuds are likely to be similar, which ought to be fine.


Why can we eliminate the possibility of high output impedance? It's pretty common with onboard audio, and discrete sound cards as well (75-100Ω!). Here's how to measure it.

Also, here are instructions on how to run RMAA. Replace the iPod with the source that you want to measure (e.g. your PC).

This post has been edited by skamp: Jan 12 2013, 09:48


--------------------
See my profile for measurements, tools and recommendations.
Go to the top of the page
+Quote Post
uart
post Jun 1 2013, 08:21
Post #5





Group: Members
Posts: 810
Joined: 23-November 04
Member No.: 18295



QUOTE (skamp @ Jan 12 2013, 01:45) *
Why can we eliminate the possibility of high output impedance? It's pretty common with onboard audio, and discrete sound cards as well (75-100Ω!).

Indeed. This is almost certainly just a case of too high impedance of the onboard audio (specifically too lower valued coupling capacitors). Loss of bass when driving headphones is a fairly common problem with onboard audio.

QUOTE (Liner @ Jan 11 2013, 12:35) *
Maybe I should've explained better, I was referring to my old desktop, which has a set of crappy speakers connected to it via the front audio jack, and I plug my headphones into the jack on the actual speakers.

Then to test the problem you simply need to connect your new laptop to your crappy powered speakers, and then plug your headphones into the speaker's headphones jack. If this resolves the bass issue then it is 100% certain that it's an output impedance problem.

Assuming that output impedance is the issue, then the best way to overcome this is of course to use a headphones amplifier. (BTW, the crappy powered speakers were effectively providing a crude phones amplifier in the test I mentioned above.)

If you don't really want to spend money on a headphones amplifier then there is one other simple option, though it's a bit of a compromise. You can buy a headphone extension cable with an inline volume control (about $2 on ebay). These are typically just a 1k to 2k pot, so as long as you don't max out the (inline) volume you can effectively increase your phones impedance to about 500 ohms or more.

Of course you have to have enough volume headroom from your onboard output to compensate for the added attenuation, but assuming that you can still get adequate volume then this is a remarkably simple method of regaining your bass response. I've used the method with various devices (including onboard sound and very cheap nasty mp3 players) to good effect.

This post has been edited by uart: Jun 1 2013, 08:25
Go to the top of the page
+Quote Post

Posts in this topic


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



RSS Lo-Fi Version Time is now: 24th November 2014 - 05:05