With the CAN network it could be possible to have information as vehicle speed and engine speed.
This could allow to adapt the volume with the engine / vehicle speed. Le mardi 3 décembre 2013 21:39:20 UTC+1, Sebastian Wendt a écrit : > > Hello everybody, > > I have just received first sample boards of my CarStreamer cape for > Beaglebone. > CarStreamer includes: > > 4x50W(RMS) Class-D Audio Amplifier (FDA450) connected to McASP0 and I2C > Stereo Audio Codec with 2x LineOut, 2x LineIn and 1x Mic In (TLV320AIC3104) > FM/DAB receiver circuit (with RDS support, ...) connected to McASP1 and > UART > 5V 3A Step-Down Power Supply > Infrared Remote Control receiver > > My plan is to use it as Car Radio replacement in my classic cars, so I can > have high fidelity audio playback and latest media connectivity (via USB, > SD-Card and Bluetooth) without destroying the look of my dashboard with one > of these ugly aftermarket car radios. > But of course the cape can also be used to extend your BeagleBone to a > powerful home hifi system. > > The user interface is displayed on my Smartphone (I have started to > develop an Android App for this based on Qt for Android which already works > quite well) and I can benefit from, the phone's Navigation and voice > recognition feature. > Of course I can use CarStreamer as Hands-Free Telephony system with > integrated Echo Cancellation and Noise Reduction feature. > The hardware was designed according to Automotive OEMs requirements, so > should very reliable and ruggedized. > > Carstreamer firmware is based on kernel 3.8 with an extension to the > existing device tree. > The main SW is written using the Qt framework for the application part and > the audio framework is using PulseAudio. I have written a Plugin that > integrates a powerful Audio Equalizing scheme incl. standard filters such > as Bass, Mid, Treble, Graphics EQs but also Speaker Frequency Gain > correction, Dynamic Bass boost and Limiters. > It also integrates the EC/NR for Telephony and handles things like sample > rate conversion and Bluetooth AADP audio. > Next step for the Application is to integrate a Media Parser and Playback > Engine for SD and USB media (any recommendations for libs/frameworks from > your side) ? > > If anybody is interested in working on this project (the Android app or > the Linux firmware) or on sample boards, please let me know. > If am planning to release schematics and gerber files as soon as I have > verified all parts of the boards. > > Currently more or less all peripherals of the Cape are working as expected > (so yes, I can hear DAB radio stations through the speaker outputs of the > Class-D amp :-)) but I had to integrate some tweaks and patches to the 3.8 > kernel (e.g. enabling multi-serializer support on the McASP). > > Please let me know if you have any suggestions / proposals for > enhancements or if you wish to know more about it. > I am really planning to release the cape hardware and a aluminium > extrusion housing as complete product in Q3/2014. > > > Regards, > Sebastian > > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
