Thread: alsamixer -c0 can this be used to permanantly increase headset volume
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jaimex2 is offline jaimex2
2011-01-08 , 14:13
Posts: 208 | Thanked: 91 times | Joined on Jun 2010
#7
I've have a similar problem with my car audio. The car audio is not as good as it could be because I have to set the AUX volume to max on the cars system as well as the n900.

The solution I'm going for is an AUX cable with a preamp after reading this on another forum:

iPods have a low level output signal - around 300mV - (as they use the headphone jack rather than a dedicated Line Out jack) and require the amplified cable (the one in the eBay pic is not amplified - amplified leads have a small shrink wrapped cylinder - which contains the amp - in the middle of the cable). If you do not use an amplified cable with an iPod, you need to turn up the iPod output to near max (leading to output signal distortion) and the Ford ICC volume control right up (leading to alternator whine being heard).

An iPod connected via the Ford amplified cable sounds really good. An iPod on an unamplified cable does not in comparison.

Other MP3 players put out 850mV to 1v (closer to a Line Out spec) and hence will work quite well on an unamplified cable. Check your MP3 player specs to see if it says what the output signal level is as an unamplified lead may work fine with your MP3 player (whereas an iPod will always work best only on an amplified cable).
Seems to be the same case with the n900. The only pain is this cable is $120 which leaves it as a last resort.