79 lines
2.2 KiB
Python
Executable File
79 lines
2.2 KiB
Python
Executable File
#!/usr/bin/python3
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import numpy as np
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import sys, logging, os, argparse
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parser = argparse.ArgumentParser(
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description='Play a sine wave'
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)
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parser.add_argument('--freq', '-f', help='Sine frequency [Hz]', type=float,
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default=1000.)
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parser.add_argument('--log', '-l',
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help='Specify log level [info, debug, warning, ...]',
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type=str, default='info')
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args = parser.parse_args()
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numeric_level = getattr(logging, args.log.upper(), None)
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if not isinstance(numeric_level, int):
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raise ValueError('Invalid log level: %s' % args.loglevel)
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FORMAT = "[%(levelname)s %(filename)s:%(lineno)s - %(funcName)20s() ] %(message)s"
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logging.basicConfig(format=FORMAT, level=numeric_level)
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import multiprocessing
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from lasp import (StreamManager, AvType, Siggen, SignalType, SiggenData)
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from lasp.device import DaqConfigurations
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if __name__ == '__main__':
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multiprocessing.set_start_method('forkserver', force=True)
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logging.info(f'Playing frequency {args.freq} [Hz]')
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configs = DaqConfigurations.loadAllConfigs()
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config_keys = [key for key in configs.keys()]
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for i, key in enumerate(config_keys):
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print(f'{i:2} : {key}')
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choosen_index = input('Number of configuration to use: ')
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try:
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daqindex = int(choosen_index)
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except:
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print('Invalid configuration number. Exiting.')
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sys.exit(0)
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choosen_key = config_keys[daqindex]
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daqconfig = configs[choosen_key].output_config
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print(f'Choosen configuration: {choosen_key}')
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try:
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streammgr = StreamManager()
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outq = streammgr.getOutputQueue()
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siggendata = SiggenData(
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fs=48e3,
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nframes_per_block=1024,
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dtype=np.dtype(np.int16),
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eqdata=None,
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level_dB=-20,
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signaltype=SignalType.Periodic,
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signaltypedata=(args.freq,)
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)
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siggen = Siggen(outq, siggendata)
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streammgr.activateSiggen()
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streammgr.startStream(AvType.audio_output, daqconfig)
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input('Press any key to stop...')
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streammgr.stopStream(AvType.audio_output)
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finally:
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siggen.cleanup()
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streammgr.cleanup()
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