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The playback interface was missing in my previous version of the BBBRadio. So I added it using wxMediaCtrl.   Below is the updated screen for main GUI of BBBRadio.   Click on WavPlayer to open the interface to the media control.     The media control interface consists of simple elements such as Open File - for opening the file Filename TextBox - for displaying the filename Delete - for deleting the file displayed on the Filename textbox Play - play selected file ...
After progressing with setting up RTL_SDR software and USB audio, the next task was developing Graphical User Interface. It turned out to be a real pain. I couldn't bring up a simple window on the screen. The main culprit was GNOME!!!! It consumed almost two weeks of my effort with no success. Later I had to find an alternative. So, I chose Xfce. Turned out that it has better response time than GNOME.   Steps to enable xfce on Beaglebone Black   opkg install packagegroup-xfce-base ...
After setting up the rtl-sdr software as defined here, next step to enable the USB sound card as planned. Unfortunately I don't have any USB sound card as of now, so i emulated one as described here. BBB has the audio output on HDMI port by default, so it is necessary to disable that, to ensure the audio playback on USB sound card. This can be done by changing uEnv.txt after "BEAGLEBONE" drive shows up on your host system. Change the uEnv.txt to   optargs=quiet capemgr.disable_partno=BB-BO ...
Thanks element14 for selecting my design for Beaglebone Black Radio Challenge. I own a Beaglebone(first generation) so i have some prior experience in handling this new beauty(BBB).   My project aims in designing a radio using SDR and internet. The radio's interface(GUI) shall be Qt/GTK based. Provision of searching, storing and recording of channel shall be added. The audio output is using a USB sound card. The initial step is make RTL_SDR talk to Beaglebone Black.   Building rtl-sd ...