From c917d47e71d9cef3f6cf096cf9606913ef7020fd Mon Sep 17 00:00:00 2001 From: Kasper Nyhus Kaae Date: Mon, 7 Mar 2022 21:30:33 +0100 Subject: audio_test_freertos & audio_4_channel_mic_freertos --- .../audio_test_freertos/src/plot_audio_samples.py | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 examples/device/audio_test_freertos/src/plot_audio_samples.py (limited to 'examples/device/audio_test_freertos/src/plot_audio_samples.py') diff --git a/examples/device/audio_test_freertos/src/plot_audio_samples.py b/examples/device/audio_test_freertos/src/plot_audio_samples.py new file mode 100644 index 000000000..6e3c4978e --- /dev/null +++ b/examples/device/audio_test_freertos/src/plot_audio_samples.py @@ -0,0 +1,34 @@ +import sounddevice as sd +import matplotlib.pyplot as plt +import numpy as np +import platform + +if __name__ == '__main__': + + # If you got "ValueError: No input device matching", that is because your PC name example device + # differently from tested list below. Uncomment the next line to see full list and try to pick correct one + # print(sd.query_devices()) + + fs = 48000 # Sample rate + duration = 100e-3 # Duration of recording + + if platform.system() == 'Windows': + # MME is needed since there are more than one MicNode device APIs (at least in Windows) + device = 'Microphone (MicNode) MME' + elif platform.system() == 'Darwin': + device = 'MicNode' + else: + device ='default' + + myrecording = sd.rec(int(duration * fs), samplerate=fs, channels=1, dtype='int16', device=device) + print('Waiting...') + sd.wait() # Wait until recording is finished + print('Done!') + + time = np.arange(0, duration, 1 / fs) # time vector + plt.plot(time, myrecording) + plt.xlabel('Time [s]') + plt.ylabel('Amplitude') + plt.title('MicNode') + plt.show() + \ No newline at end of file -- cgit v1.3.1