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Sound Sensor

Sound Sensor converts sound into an electrical signal.

SoundSensor(slot)

To create a SoundSensor object, call SoundSensor(slot).

Also you can use short alias Sound(slot).

Since the sound sensor can work as digital and analog, as analog it can only be inserted into slots with an ADC (analog-to-digital converter), and there are only 2 such slots on the PiBody: "C" and "F". For digital signal can be used in any slot.

Args:

  • slot (string | int | tuple) - slot label ("A", "B", "C", "D", "E", "F", "G", "H"), pin port (0, 2 and etc.), tuple (0, Pin.OUT)

Returns: Return a SoundSensor object for slot.

from pibody import SoundSensor

sound = SoundSensor("A")

.read() -> (int, float)

Return (digital, analog) as a tuple.
Digital signal 1 if sound was loud.
Analog signal returns sound level in range [0, 1.0]. 0.5 is default, and it will be sinusoid wave info.

  • digital - digital sound level 0 or 1
  • analog - analog sound level normalized in range from 0 to 1.0
sound.read()

from pibody import Sound  # short alias
from time import sleep

sound = Sound("A")

while True:
    digital, analog = sound.read()
    if digital == 1:
        print("Sound is significant")
    else:
        print("Sound is not significant")

    print("Sound level:", analog)
    sleep(1)

.read_digital() -> int

Return the digital sound level: 0 or 1.

data = sound.read_digital()
print(data)

.read_analog(normalized | None) -> float

Return the analog sound level.

Args: - normalized - if True returns a float in range [0, 1.0]. If False returns the raw 16-bit ADC value in range [0, 65535]. Default is True

data = sound.read_analog()
print(data)