Support and General Use > Hardware
AGPTEK Rocker
johnb:
Regarding the volume steps see http://gerrit.rockbox.org/r/#/c/1555/. I made the comment about the hack respectively missing a clean and global solution.
Regarding keymaps:
I would suggest two changes (and can create a patch):
- Currently there is no way to cancel when in "Recent Bookmarks" screen, i.e. you have to select one and only then can quit. I would assign Cancel to the Power button.
- Like on the clip+, when in any of the other menus, clicking Power twice takes you back to WPS.
Right now I don't have the tool chain compiled myself, only then I would create the patches, i.e. when I am able to test myself.
wodz:
simulator is pretty convenient for testing keymaps.
wodz:
--- Quote from: johnb on June 19, 2018, 02:10:06 PM ---Regarding the volume steps see http://gerrit.rockbox.org/r/#/c/1555/. I made the comment about the hack respectively missing a clean and global solution.
--- End quote ---
706e31b should fix this without hack.
saratoga:
FWIW, we usually aim for a 1 dB step size in the audio drivers if the hardware is capable of it. The rationale is that 1 dB is approximately the smallest step size that most people will notice without careful concentration.
speachy:
--- Quote from: wodz on June 20, 2018, 09:39:44 AM ---706e31b should fix this without hack.
--- End quote ---
I saw the commit and rebuilt it this morning, and I'm happy to say that the WPS volume control buttons now have an audible difference.
--- Quote from: wodz on June 19, 2018, 11:05:16 AM ---
--- Quote from: pizza on June 19, 2018, 07:08:13 AM --- * LCD doesn't seem to update when skipping or seeking tracks, but does when pausing/playing.
--- End quote ---
Interesting. I didn't spot this. Will check.
--- End quote ---
I misspoke -- basically, while in the WPS, the screen doesn't update until/unless a button is pressed.
--- Quote from: wodz on June 19, 2018, 11:05:16 AM ---
--- Quote from: pizza on June 19, 2018, 07:08:13 AM --- * Need to expose output gain selection (to select between HP and Line out)
--- End quote ---
I don't understand. AFAIK it only has HP output not line out.
--- End quote ---
The CS42L51 doesn't have a dedicated line out, but via the output gain setting you can mimic it fairly closely by controlling the peak-peak voltage range/swing. (Se page 17 of its datasheet) Basically, "consumer line level" expects a peak-peak swing of ~0.9V (vs "pro line level" of about ~3.5V).
Both of my vehicles' line (not AUX!) inputs seem to fall on the "consumer" side of that line, and dialing the gain down to '0' results in noticably better audio quality, with 0.97v p-p voltage, vs the ~1.25v p-p voltage of the previous setting of '2'. It also presumably results in slightly better battery life.
As an aside, Benjie/AGPTek's not releasing their Linux kernel sources is quite annoying; it would be nice to be able to utilize more of the CS42L51's features, like the native bass/treble control.
(When I have some more time I intend to start poking around via adb)
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