G'day, I'm working on a package for gr-audio-portaudio. I'd no problems porting the portaudio application and getting gr-audio-portaudio to build.
Sound rendered by the portaudio test application is perfect. Contrary to this,
sound played using gr-audio-portaudio API using the gnruadio audio test
applications result in choppy sound. It appears to be caused by underrun
conditions see below:
barossa: {260} ./dial_tone.py
Number of devices found = 1
--------------------------------------- device #0
[ Default Input, Default Output ]
Name = /dev/audio
Host API = OSS
Max inputs = 2, Max outputs = 2
Default low input latency = 0.012
Default low output latency = 0.012
Default high input latency = 0.046
Default high output latency = 0.046
Test Devices
Testing device name: /dev/audio Chosen!
/dev/audio using OSS as the host
Latency = 0.02133, requested sampling_rate = 48000
d_portaudio_buffer_size_frames = 1024
ring buffer size = 4096 frames
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Any one else experiencing this?
cheerio Berndt
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