Sound spectrum - Revision history

Mol: /* Theory */

2021-02-16T06:53:45Z

Theory

← Older revision		Revision as of 09:53, 16 February 2021
Line 6:		Line 6:

	<syntaxhighlight lang="python">		<syntaxhighlight lang="python">

	~~import pyaudio~~
	~~#import wave~~
	~~import multiprocessing~~
	~~import numpy as np~~
	~~#import pickle #Not good for np arrays~~
	~~import time~~
	~~from pathlib import Path~~

	~~audio = pyaudio.PyAudio() # create pyaudio instantiation~~

	~~info = audio.get_host_api_info_by_index(0)~~
	~~numdevices = info.get('deviceCount')~~
	~~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_device_info_by_host_api_device_index(0, i).get('name') )~~


	~~form_1 = pyaudio.paInt16 # 16-bit resolution~~
	~~chans = 1 # 1 channel~~
	~~samp_rate = 44100 # 44.1kHz sampling rate~~
	~~chunk = 4096 # 2^12 samples for buffer~~
	~~record_secs = 10 # seconds to record~~
	~~dev_index = 2 # device index found by p.get_device_info_by_index(ii)~~
	~~wav_output_filename = 'test1.wav' # name of .wav file~~


	~~print("recording")~~
	~~frames = []~~

	</syntaxhighlight>		</syntaxhighlight>

Mol: /* Theory */

2021-02-16T06:42:22Z

Theory

← Older revision		Revision as of 09:42, 16 February 2021
Line 32:		Line 32:
	wav_output_filename = 'test1.wav' # name of .wav file		wav_output_filename = 'test1.wav' # name of .wav file


			print("recording")
			frames = []

	</syntaxhighlight>		</syntaxhighlight>

Mol: /* Theory */

2021-02-16T06:41:39Z

Theory

← Older revision	Revision as of 09:41, 16 February 2021
Line 24:	Line 24:


		form_1 = pyaudio.paInt16 # 16-bit resolution
		chans = 1 # 1 channel
		samp_rate = 44100 # 44.1kHz sampling rate
		chunk = 4096 # 2^12 samples for buffer
		record_secs = 10 # seconds to record
		dev_index = 2 # device index found by p.get_device_info_by_index(ii)
		wav_output_filename = 'test1.wav' # name of .wav file

Mol: /* Theory */

2021-02-16T06:41:21Z

Theory

← Older revision		Revision as of 09:41, 16 February 2021
Line 16:		Line 16:

	audio = pyaudio.PyAudio() # create pyaudio instantiation		audio = pyaudio.PyAudio() # create pyaudio instantiation

			info = audio.get_host_api_info_by_index(0)
			numdevices = info.get('deviceCount')
			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_device_info_by_host_api_device_index(0, i).get('name') )

Mol: /* Theory */

2021-02-16T06:40:59Z

Theory

← Older revision		Revision as of 09:40, 16 February 2021
Line 6:		Line 6:

	<syntaxhighlight lang="python">		<syntaxhighlight lang="python">

			import pyaudio
			#import wave
			import multiprocessing
			import numpy as np
			#import pickle #Not good for np arrays
			import time
			from pathlib import Path

			audio = pyaudio.PyAudio() # create pyaudio instantiation



	</syntaxhighlight>		</syntaxhighlight>

Mol: /* Theory */

2021-02-16T06:40:22Z

Theory

← Older revision		Revision as of 09:40, 16 February 2021
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	<syntaxhighlight lang="python">		<syntaxhighlight lang="python">
	~~for in in range(1,19):~~
	</syntaxhighlight>		</syntaxhighlight>

Mol: /* Theory */

2021-02-16T06:32:40Z

Theory

← Older revision		Revision as of 09:32, 16 February 2021
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	<syntaxhighlight lang="python">		<syntaxhighlight lang="python">
			for in in range(1,19):
	</syntaxhighlight>		</syntaxhighlight>

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	[Category:Raspberry Pi]		[[Category:Raspberry Pi]]
	[Category:Python]		[[Category:Python]]

Mol: Created page with "== Introduction == Use USB microphone to listen sound and FFT it to waveforms. == Theory == [Category:Raspberry Pi]..."

2021-02-16T06:32:05Z

Created page with "== Introduction == Use USB microphone to listen sound and FFT it to waveforms. == Theory == <syntaxhighlight lang="python"> </syntaxhighlight> [Category:Raspberry Pi]..."

New page

== Introduction ==

Use USB microphone to listen sound and FFT it to waveforms.

== Theory ==

<syntaxhighlight lang="python">

</syntaxhighlight>

[Category:Raspberry Pi]
[Category:Python]