Input Overflowed -9981

[Thasmokey]

The last 2 days i have been in a lot of issues with Athena.
Know i have decided to use Athena on my Raspberry Pi 2.
After installing i put the command from athena import __main__
Now i get this error message:

~ Hey there, ThaSmokey!

~ Try asking:

• "Athena (double beep) what's the weather like in DFW?"
• "Athena (double beep) what is the capital of Tanzania?"
• "Athena (double beep) open facebook.com"

~ Waiting to be woken up...
Traceback (most recent call last):
File "/usr/local/lib/python3.4/dist-packages/athena/brain.py", line 224, in run
stt.listen_keyword()
File "/usr/local/lib/python3.4/dist-packages/athena/stt.py", line 45, in listen_keyword
buf = stream.read(256)
File "/usr/lib/python3/dist-packages/pyaudio.py", line 605, in read
return pa.read_stream(self._stream, num_frames)
OSError: [Errno Input overflowed] -9981

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "", line 1, in
File "/usr/local/lib/python3.4/dist-packages/athena/main.py", line 4, in
brain.inst.run()
File "/usr/local/lib/python3.4/dist-packages/athena/brain.py", line 240, in run
raise Exception
Exception

I have searched they hole internet, also changed de sample rate and the (CHUNK) buf = stream.read(256) from 2/4/8/16/32/64/128/256/512 to 8192

I have used a microphone and a build-in microphone from a webcam.

[rcbyron]

Hi again, sorry you're having more issues. I hope you got everything fixed on your main computer/system. As for the RPi 2, one of the developers in our community posted these comments:

AVBin is not available for the Raspberry's ARM arquitecture. Workaround: I used os.system("mplayer -really-quiet " + file). Better idea, use pygame or some lightweight multiplatform library to play compressed audio
Without Internet connection, a fallback to use PicoTTS (libttspico-utils: /usr/bin/pico2wave) would be nice. I used it, again, with os.system("read.sh " + words) and a little bash script that makes the wave file using pico2wave, plays it and removes it. Would be better to try to use the libpicotts directly from Python.

And with respect to this issue:

The RPI2 doesn't have an audio input. I used a very cheap USB "soundcard" that has both output and mic. I run into a problem with a (possibly buggy) with pyaudio. The error was:
IOError: [Errno Input overflowed] -9981
I solver it by modifying the "buf = stream.read(1024)" line in stt.py and adding a parameter to ignore overflows ( I don't remember exactly, was something like except_on_overflow=False ). I can tell you later when at home.

This seems to be a popular issue:
http://stackoverflow.com/questions/10733903/pyaudio-input-overflowed

I'll be looking into this issue more, but maybe this will help in the meantime.

[joshgel]

I was able to suppress this error by modifying the "buf = stream.read(1024)" line in stt.py to "buf = stream.read(1024, exception_on_overflow=False)"

(still getting lots of errors though)

[ivaniclixx]

Hi joshgel,

Try using pulseaudio with the Raspberry Pi 2. It kinda makes it work better.

pulseaudio -D

Then, you can use:

pactl list short

Copy the desired input device, and:
pactl set-default-source [device name]

For example:

pactl set-default-source alsa_input.usb-0d8c_USB_PnP_Sound_Device-00-Device.analog-mon

I am very busy lately, but i'll try to contact the developers and update the documentation on how to make everything work properly under the raspbian. Hope it helps.