Rockbox General > Rockbox General Discussion
Line out for Sansa E200?
bertrik:
The reason that the line-out level changes when changing the volume is that in the current situation, the total 80 dB volume range is achieved by changing both the mixer gain and the headphone gain. The mixer gain influences the line-out level. Going from silent to loud, the mixer gain is first turned up until some maximum value after which the headphone gain is increased.
To keep the line-out level constant, the mixer gain could be set to a fixed value but that would reduce the total volume range to just the 48 dB that can be set in the headphone stage.
Maybe a nice compromise would be to make the line-out gain stage exactly compensate for any changes in the mixer stage.
I won't mind coding up some proof-of-principle code for you to try.
PolloLoco:
Thanks Bertrik, but I think I'm satisfied with the current solution offered by just setting the overall volume to zero. Since I see no option to set the mixer volume independently - I assume I'm setting it via the overall system volume?
Probably the main reason I'm not anxious to try new code, is that I'm a major newbie, and my simple attempts to try different versions of Rockbox have resulted in failure.
bertrik:
OK. I think this would be a nice chance to improve rockbox. I guess this part of rockbox is not normally tested very well since there are not that many people with a dock.
PolloLoco:
If you'd like to test it as an opportunity to improve Rockbox - I'd be happy to try. If you could recompile Rockbox to include your code - I'd install it and test vs. the offilial firmware. Let me know.
I ended up buying an E280 to experiment with, within hours of hearing that it offered a true line out. I saw that the docks are pretty inexpensive as well.
My Cowon X5L started to die, and I needed something to tide me over temporarily. Though the Sansa definitely doesn't have the sound quality of the X5L, it's also filled the niche of a sport mp3 player at a very cheap price. So I'm quite happy with my purchase.
Let me explain my previous retisence - I was unwilling to try code when I thought it would only help me, because I'm fairly happy with the current setup. But if it helps the community - I'd be happy to test it out to try appropriate line level output.
gorman:
Any news on this?
Do I understand things correctly if I think that by setting volume to 0 I'd be getting "true" line-out results?
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