Support and General Use > Hardware
AGPTEK Rocker
Eugen5s:
Is there a way to backup the firmware for the Benjie T6? My T6 came with the Firmware ver 1.07Beta.
I was also planning to install the AGPtek Version 1.2, but is there any great noticeable difference between the AGPtek and the Benjie?
TyphoonScotland:
--- Quote from: Eugen5s on April 25, 2018, 02:08:44 PM ---Is there a way to backup the firmware for the Benjie T6? My T6 came with the Firmware ver 1.07Beta.
--- End quote ---
You don't actually need to, the Bootloader that comes with Rockbox is a Dual Boot, therefore your Benjie T6 will boot both Rockbox and the Original Player software (Hiby Player). ;)
--- Quote from: Eugen5s on April 25, 2018, 03:57:39 PM ---I was also planning to install the AGPtek Version 1.2, but is there any great noticeable difference between the AGPtek and the Benjie?
--- End quote ---
As stated above, hardware wise they are exactly the same. There is no noticeable difference between the devices or firmwares. Both are interchangeable.
lncdoc:
Firstly, Thank you everyone for the excellent work on this port; it's working better than I dared hope on my Rocker v2 (OF 1.2).
When I got the player 2 days ago, I was a bit disappointed with the relatively high noise floor with low impedance IEMs, such as Klipsch X11 or Vsonic VC1000, using the OF (but also Rockbox). I thus had a look at the datasheet and it suggests it should be able to do better, so I had a look at the detailed debug information at https://www.rockbox.org/wiki/AgptekRocker (again, thank you very much for posting that) and figured I'd try playing with the gain. It turns out the unit sounds WAY better (at least to me, your mileage may vary), with the gain set to 0 (000 binary), which corresponds to 0.3959 gain according to the datasheet instead of the default 0.6047 (011 binary, as in 3).
As my programming skills (outside of technical computing like Matlab and R) are minuscule, I just hard-coded this into the rocker_codec.c in rockbox-wodz/firmware/drivers/audio/ during the codec initialization by adding 2 lines:
(beginning of snippet)
void audiohw_preinit(void)
{
long int hp = 2;
long int csgain = 0;
alsa_controls_init();
hw_open();
/* Output port switch set to Headphones */
alsa_controls_set_ints("Output Port Switch", 1, &hp);
alsa_controls_set_ints("CS42L51 Gain", 1, &csgain);
}
(end of snippet)
Please feel free to either make use of this or ignore it, but it's made the player usable with low impedance IEMs at low volumes for me, when it was painfully noisy before, so I figured I'd share this, as I didn't see any such option implemented yet (my apologies if I just overlooked something). Would be very cool to add a "gain" setting in the sound menu!
All the best, and again, thanks for all the work!
rdtyphn:
--- Quote from: lncdoc on April 26, 2018, 01:49:43 AM ---Please feel free to either make use of this or ignore it, but it's made the player usable with low impedance IEMs at low volumes for me, when it was painfully noisy before, so I figured I'd share this, as I didn't see any such option implemented yet (my apologies if I just overlooked something). Would be very cool to add a "gain" setting in the sound menu!
--- End quote ---
Great, this has been my main issue with the player, thank you!
JimZipCode:
--- Quote from: lncdoc on April 26, 2018, 01:49:43 AM ---(end of snippet)
Please feel free to either make use of this or ignore it, but it's made the player usable with low impedance IEMs at low volumes for me, when it was painfully noisy before, so I figured I'd share this
--- End quote ---
Awesome stuff.
Does Rockbox have to be re-compiled after this change? Or can it be made "manually" in the files that Milardo has provided via zip?
Wodz, What you've done so far is awesome. Thanks so much for it.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version