OSError: [Errno -9981] Input overflowed

[victrome]

Hi,
I'm trying to run the EfficientWord-Net on my Raspberry Pi 5. But I keep getting the error below when trying to test the library:

python -m eff_word_net.engine /home/user-pi/tmp/vosk/lib/python3.11/site-packages/eff_word_net/sample_refs /home/user-pi/tmp/vosk/lib/python3.11/site-packages/numpy/_core/getlimits.py:555: UserWarning: The value of the smallest subnormal for <class 'numpy.float64'> type is zero. setattr(self, word, getattr(machar, word).flat[0]) /home/user-pi/tmp/vosk/lib/python3.11/site-packages/numpy/_core/getlimits.py:89: UserWarning: The value of the smallest subnormal for <class 'numpy.float64'> type is zero. return self._float_to_str(self.smallest_subnormal) ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.front ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround21 ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround21 ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround40 ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround41 ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround50 ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround51 ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround71 ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958 ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958 ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958 ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline Cannot connect to server socket err = No such file or directory Cannot connect to server request channel jack server is not running or cannot be started JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock Cannot connect to server socket err = No such file or directory Cannot connect to server request channel jack server is not running or cannot be started JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock ALSA lib pcm_oss.c:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp ALSA lib pcm_oss.c:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp ALSA lib pcm_a52.c:1001:(_snd_pcm_a52_open) a52 is only for playback ALSA lib conf.c:5670:(snd_config_expand) Unknown parameters {AES0 0x6 AES1 0x82 AES2 0x0 AES3 0x2 CARD 0} ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM iec958:{AES0 0x6 AES1 0x82 AES2 0x0 AES3 0x2 CARD 0} ALSA lib confmisc.c:160:(snd_config_get_card) Invalid field card ALSA lib pcm_usb_stream.c:482:(_snd_pcm_usb_stream_open) Invalid card 'card' ALSA lib confmisc.c:160:(snd_config_get_card) Invalid field card ALSA lib pcm_usb_stream.c:482:(_snd_pcm_usb_stream_open) Invalid card 'card' ALSA lib pcm_dmix.c:972:(snd_pcm_dmix_open) The dmix plugin supports only playback stream ALSA lib pcm_dsnoop.c:540:(snd_pcm_dsnoop_open) The dsnoop plugin supports only capture stream ALSA lib pcm_dmix.c:972:(snd_pcm_dmix_open) The dmix plugin supports only playback stream ALSA lib pcm_dsnoop.c:540:(snd_pcm_dsnoop_open) The dsnoop plugin supports only capture stream Cannot connect to server socket err = No such file or directory Cannot connect to server request channel jack server is not running or cannot be started JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock Chunk size 12000 Initial S (24000,) Say mycroft / alexa / balloon / computer / mobile / lights_on / lights_on Traceback (most recent call last): File "<frozen runpy>", line 198, in _run_module_as_main File "<frozen runpy>", line 88, in _run_code File "/home/user-pi/tmp/vosk/lib/python3.11/site-packages/eff_word_net/engine.py", line 380, in <module> frame = mic_stream.getFrame() ^^^^^^^^^^^^^^^^^^^^^ File "/home/user-pi/tmp/vosk/lib/python3.11/site-packages/eff_word_net/streams.py", line 52, in getFrame new_frame = self._get_next_frame() ^^^^^^^^^^^^^^^^^^^^^^ File "/home/user-pi/tmp/vosk/lib/python3.11/site-packages/eff_word_net/streams.py", line 94, in <lambda> np.frombuffer(mic_stream.read(CHUNK),dtype=np.int16) ^^^^^^^^^^^^^^^^^^^^^^ File "/home/user-pi/tmp/vosk/lib/python3.11/site-packages/pyaudio.py", line 608, in read return pa.read_stream(self._stream, num_frames, exception_on_overflow) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ OSError: [Errno -9981] Input overflowed

I'm running the latest version of Raspberry OS and for the microphone I'm using a WM8960 HAT board. I tested the mic and it's working fine with arecord

More info about the mic I'm using:
{
'name': 'wm8960-soundcard: 1f000a0000.i2s-wm8960-hifi wm8960-hifi-0 (hw:0,0)',
'index': 0,
'hostapi': 0,
'max_input_channels': 2,
'max_output_channels': 2,
'default_low_input_latency': 0.005804988662131519,
'default_low_output_latency': 0.005804988662131519,
'default_high_input_latency': 0.034829931972789115,
'default_high_output_latency': 0.034829931972789115,
'default_samplerate': 44100.0
}

[victrome]

It working now but I'm not sure if what I've done is correct as I don't know Python very well...

Edit the file: venv/lib/python3.11/site-packages/eff_word_net/streams.py
line 94:
from
np.frombuffer(mic_stream.read(CHUNK),dtype=np.int16)
to
np.frombuffer(mic_stream.read(CHUNK, False),dtype=np.int16)

[TheSeriousProgrammer]

Interesting, I think this can possibly happen when the expected speed of the system is lower as a result the buffer may overflow or that the audio source is probably not respecting the 16khz sampling rate set by the system, need to do some investigation on this