Want to try to overclock to 1.3ghz+?
Tired of the speaker not being loud enough?
Tired of hiss and noise with your high sensitivity headphones?
What is this?
I have made a free app in the Android market to tweak a few things I've added to the Nook Color kernel. I hope to add more features to this app later. For now you can adjust:
*CPU speed per stepping. Allows you to overclock as much or as little as you want.
*CPU voltage control. Undervolt for better battery life and/or overvolt for better overclocking.
*Headphone analog gain
*External speaker analog gain
*USB Host control(requires OC kernel 06/18/11+)
*U-Boot control(courtesy of FatTire)
What can I do with this?
The CPU settings allow you to customize the CPU clock rate. With my overclock kernel the OMAP CPU has 5 OPPs(steppings) available. This app allows you to change the clock rate for each of those OPPs at runtime. Want to try to overclock to 1.3ghz? This app allows you to set the clock rate of your choosing.
You can also use this app to help get rid of hiss and noise on your headphones. I have sensitive headphones and I find the hiss and noise to be downright abnoxious on the Nook Color. With B&N default settings, I can only turn up the "Android media" volume to 25-35% before its too loud. This means the volume difference between the noise floor and the audio is very small which makes the noise noticiable. To partially fix this issue you can either turn down the DAC volume in this app or turn down the headphone analog gain. I prefer to just turn down the headphone analog gain until I can increase the "Android media" volume to 85-90% for comfortable listening levels.
If the external speaker is too quiet you may need to increase the DAC gain. Note that this will also increase the headphone volume so you may need to subsequently decrease the headphone analog gain.
Why use this app and not the other apps in the market?
The primary advantage to using this app versus other more generic apps you might find in the market is that this app makes low level changes in the driver to increase volume. Other apps must make these changes in software to be hardware agnostic. This leads to reduced audio quality versus hardware level changes.
Note: This app requires kernel support. For audio settings you will need a newer 2.6.32 kernel found in CM7 Nightly 88+ or my(Dalingrin) overclock kernel for B&N Froyo 1.2 and CM7.
For CPU settings you will need a 2.6.32 overclocked kernel from 06/09/11 or later.
I am actually having some problems with this app. I can increase the DAC a little bit, but if I even touch the external speakers option the sound goes out which requires a reboot. I am running nightly 87, with the oc kernal of 5/23. Any ideas? Great app by the way, I can tell from increasing the DAC that it helps a lot.
Actual Phone : HTC One X Tegra3 Rom : ViperX Phone History : HTC Hero → Nexus One (I loved it so much) → Galaxy Nexus Tablet : GT 7.7 Wifi Rom : ParanoidAndroid Tablet : Nook Color (my 5 years old daughter's tablet ) Rom : CM9 Mini PC: mk808 + rc11 Rom : Finless 1.7c
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