audio_play on turtlebot: messages being sent, but no audio output

Question

Hello,

I'm trying to get audio streaming back from my turtlebot and was delighted to find the audio_common package which provides audio_play and audio_capture. Sadly, it doesn't seem to be working.

I'm following the tutorial found here: http://www.ros.org/wiki/audio_common/Tutorials/Streaming%20audio

Setup

• On my turtlebot, I installed sound_common with "apt-get install ros-electric-sound-drivers"
• My microphone and speakers are configured correctly, I'm able to record and play back sounds.
• The command to test my audio setup works. It echos sounds from the microphone.

gst-launch-0.10 alsasrc ! audioconvert ! audioresample ! alsasink

• I launched both audio_capture and audio_play as per the tutorial

$ roslaunch audio_capture capture.launch
$ roslaunch audio_play play.launch

Problem and Troubleshooting

• No sound output.
• Both scripts launched without error.
• I've verified that the nodes are connected using rxgraph
• "rostopic echo audio" streams audio messages.
• I can see the microphone input level bouncing, but the output level is doing nothing.
• I've used sound_play to verify that I can play sounds and my volume settings are correct.

From what I can tell, everything should be working. But I still get no output. Any ideas on how to troubleshoot this?

Thanks,

-Brian

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Originally posted by brianpen on ROS Answers with karma: 183 on 2012-01-26

Post score: 0

Answer 1

Have you tried the example in the turtlebot_sounds package?

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Originally posted by Ryan with karma: 3248 on 2012-01-26

This answer was ACCEPTED on the original site

Post score: 0

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Original comments

Comment by brianpen on 2012-01-31:
hmm... thanks for the suggestion, I'll look at that. any suggestions for troubleshooting codec issues?

Comment by tfoote on 2012-01-28:
Your problem is likely that audo_play cannot process the audio you have chosen due to a codec issue.

Comment by brianpen on 2012-01-27:
Yes, it works correctly and plays the sounds.

Comment by mathijsdelangen on 2014-02-24:
Have you been able to solve this problem? I am having the same kind of issues at the moment using audio_play. However, in the beginning I have sound playback, but it stops after a little while.