Fade on stop/pause - via Line-out

[doctafonk]

Hi All

Usually I use my iPod/rockbox with an external headphone amp via the line-out port. This doesnt seem to be compatible with the "Fade on stop/pause" feature.

If I have the feature switched on and then press pause, the music will keep playing for a second (or however long the fade time is) and then stop. It seems like it's trying to do the fade, but the fade itself isnt sent via the line-out.

Is this fixable? Should i report as a bug?

Thanks

[Llorean]

The line out plays at line-level. Fade works by decreasing the volume, which you may have noticed doesn't affect the Line Out port. It sounds like a bug, though I'm not sure how fixable this is (or more specifically, whether this can be fixed on targets where the line out is hard-locked at 0dB)

[doctafonk]

Thanks for the quick reply.

ah yes. I see your point. I guess Im stuck. I do really like the fade feature but I dont want to go through the hastle of turning it on and off depending on whether I use my amp or not. And waiting that 1 second for the pause while using the line-out is painfull

Anyway, no biggie

[Llorean]

You should report this though. It's at least fixable on the iPods.

[doctafonk]

ok thanks. I created it here.

edit: Can I edit my bug report? I put some bbc code in there, but it doesnt like it and now I cant seem to remove it.

[bascule]

The line out plays at line-level. ...targets where the line out is hard-locked at 0dB)

So this is a hardware feature? Because my H120 Line-out level is affected by the volume control, which I've never liked, as that does not seem like a 'true' line-out to me.

[Llorean]

It's hardware dependent.

On the H100 and H300, the line out is stuck at the same level as the headphone out. If you set it to 0dB, it WILL be a true line out though.

On the iPods, they can be set independently. We've locked the line out at 0dB though theoretically it can be adjusted.

On other players, it will depend on how they're set up.

[bascule]

OK, thanks for that explanation. It's nice to learn something new every day

[senab]

Couldn't the fade-in/out be done as a DSP instead, therefore not requiring to change the gain level?

Just a thought.  

[soap]

Would that not consume a large amout of CPU?

[romero]

It's hardware dependent.

On the H100 and H300, the line out is stuck at the same level as the headphone out. If you set it to 0dB, it WILL be a true line out though.

0dB is all the way up, right?

Thanks!

Damion

[mnhnhyouh]

Yep 0db is full volume.

Though my iPod goes to +6  

h

[Llorean]

0dB is the "line level". Anything above that can potentially clip (assuming that the file itself does not clip naturally).

[rhymesgalore]

You should report this though. It's at least fixable on the iPods.

Sorry to bump this old topic, but it's exactly about what i was gonna to ask.

I got a 5.5G 80Gb iPod, and the latest daily build, and fade in on start/pause doesn't work through the lineout.

Has this been fixed, as proposed in this thread?
The obvious answer would be of course no, but i'm asking just in case i messed my config up....

[preglow]

If you ask me, fade in/out should be implemented as a DSP process (where possible). This would help two things: the fade not working on all outputs, and the clicky fades you get on H1x0 and others thanks to the volume control being too coarse. This shouldn't steal much CPU power at all anyway.