helllo, this really isnt Tracktion related but I though you guys could help me out.
Last night I noticed something really strange. I use a large studio type pair of "Sharp" deaphones, love em to death ... but the problem is, I pan a mono mix 100 % to the right and I still hear some audio on the left speaker. Using a mono signal, I pan around 80 % to the right and the sound from the left speaker dissapeares. It appears that after I pan to the right over 80 % the signal comes up in volume but inverted (so easy to notice 2 sounds out of phase). Now I tried my iPod headphones in the same situation with no trouble at all .... lol what the f**k is going on ????
any ideas ?
P.S.: I tried this with cubase, ableton live, wavelab and tracktion with identical results so I totally doubt its the software. My line outs are 100 % perfect, no audio whatsoever through the left speaker when panned 100 % right. wiiiieerrrrdd
Thanks a lot
Fots
Little Qeustion about Headphones
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- KVRAF
- 2565 posts since 30 Mar, 2004 from Phoenix AZ USA
It is probably your headphone amp.
Are you using the one built into the sound card?
If so there is not much you can do about it except replacing it.
Are you using the one built into the sound card?
If so there is not much you can do about it except replacing it.
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- KVRAF
- Topic Starter
- 2685 posts since 14 Jul, 2005 from Australia
lol yeah, im using the preamp on my Echo Layla3G card (http://www.echoaudio.com). Such a wierd problem though since it works ok with one pair of headphones and not with the other :")
Do you think it may have anything to do with the impedance of the headphones ? We measured the impedance (using the headphone plug) and ipod ones were 33 ohms while the big ones (that didn't work well) were 8 ohms.
Cheers
Fots
Do you think it may have anything to do with the impedance of the headphones ? We measured the impedance (using the headphone plug) and ipod ones were 33 ohms while the big ones (that didn't work well) were 8 ohms.
Cheers
Fots
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- KVRAF
- 3441 posts since 15 Mar, 2003
It could be a bad plug on the headphones or a bad jack in the soundcard.
I have been having similar problems and it is the headphone jack on my laptop.
If it is the jack all you might need to do is bend the contact prongs a bit.
Try to narrow down and locate the problem by elimination.
I have been having similar problems and it is the headphone jack on my laptop.
If it is the jack all you might need to do is bend the contact prongs a bit.
Try to narrow down and locate the problem by elimination.
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- KVRist
- 161 posts since 30 May, 2004
Yes - the lower impedance will be more sensitive to crosstalk voltages or whatever. Thats why 4 ohm loudspeakers tend to have more "hum" than 8 ohm.soundpalace wrote:lol yeah, im using the preamp on my Echo Layla3G card (http://www.echoaudio.com). Such a wierd problem though since it works ok with one pair of headphones and not with the other :")
Do you think it may have anything to do with the impedance of the headphones ? We measured the impedance (using the headphone plug) and ipod ones were 33 ohms while the big ones (that didn't work well) were 8 ohms.
Cheers
Fots
Say you have 100 mV of crosstalk (yeah thats high but just for the sake of comparrison). Then you would have 0.1/8 = 12 mA of current in the 8 ohm headphone and 0.1/33 = 3 mA in the 33 ohm. Since speakers are magnetic (ie driven by magneto-motive force = current) the low impedance drivers should be "louder".