CODEWITHSUNDEEP
pythonpyaudio
user3034017
user3034017

Reputation: 161

PyAudio Can't Detect Sound Devices

I'm trying to create a python program to record and loop audio tracks using PyAudio with Ubuntu 16.04. I'm getting an error saying that "no default input device found". When I query the default device and try to list the total device I get the same result. But if I check within the Ubuntu OS itself all the devices can be seen. What could be the issue here? I have found some other threads saying that it could be an issue within the PortAudio library but don' know where to go from there?

info = audio.get_host_api_info_by_index(0)
numDevices = info.get('deviceCount')
print ("Number of sounds devices: " + str(numDevices))

for i in range(0, numDevices):
    if audio.get_device_info_by_host_api_device_index(0, i).get('maxInputChannels') > 0:
        print("Input Device ID "+ i + " - " + audio.get_dev-ce_info_by_host_api_index(0,i).get('name'))

output: Number of sounds devices: 0

audio.get_default_output_device_info()

output:

Traceback (most recent call last):

File "query_sound_devices.py", line 9, in <module>
    audio.get_default_output_device_info()

File "/usr/local/lib/python3.5/dist-packages/pyaudio.py", line 962, in get_default_output_device_info
    device_index = pa.get_default_output_device()

OSError: No Default Output Device Available

OS output

root@osboxes:# arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: I82801AAICH [Intel 82801AA-ICH], device 0: Intel ICH [Intel 82801AA-ICH]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: I82801AAICH [Intel 82801AA-ICH], device 1: Intel ICH - MIC ADC [Intel 82801AA-ICH - MIC ADC]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: C310 [Plantronics C310], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Upvotes: 4

Views: 4071

Answers (1)

shan_1.0
shan_1.0

Reputation: 87

This issue generally arises when you are using anaconda to install pyaudio and portaudio.

Option 1:

conda install nwani::portaudio nwani::pyaudio

Option 2:

conda remove pyaudio
conda remove portaudio
pip install pyaudio

Either of them will fix your issue.

Upvotes: 2

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