Re: [Discuss-gnuradio] Audio issues on BBB

[Cinaed Simson]

On 05/31/2017 03:36 AM, Philip Balister wrote:
> On 05/29/2017 07:49 AM, Usman Haider wrote:
>> Hi,
>>
>> I am using GNU Radio on beaglebone black (BBB). I have transmitter and
>> receiver flowgraph with audio sink audio source. When I run the flowgraphs
>> on laptop or desktops I receive all the data packets correctly. But when I
>> run either receiver or transmitter flowgraph on BBB there are intermittent
>> packet drops. Packet loss is very small but it is there. There are no audio
>> underruns or audio overruns. I am using a usb sound card with BBB.
>>
>> I am using jessie 8.6 on BBB, GNU Radio version is 3.7.10.1. Enabled
>> components are shown below
>>
>> $ gnuradio-config-info --enabled-components
>> python-support;testing-support;volk;gnuradio-runtime;gr-blocks;gnuradio-companion;gr-fft;gr-filter;gr-analog;gr-digital;gr-audio;*
>> alsa;* oss;* jack;*
>> portaudio;gr-channels;gr-noaa;gr-pager;gr-utils;gr-video-sdl;gr-vocoder;gr-fcd;gr-wavelet;gr-wxgui;gr-zeromq
>>
>>
>> Have anyone else tried using usb audio sound card on BBB with gnuradio
>> before? Any idea what could be wrong? Thanks
> 
> Try using perf top to get an idea where the flowgraph hot spots are. The
> BBB is a single core arm, so there isn't much processing power.

Post your flow chart.

Does the sound card work as a sound card on the BBB - can you play a
wave or mp3 file witout any issues?

> 
> Philip
> 
> 
>>
>>
>>
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> 
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