What are audio and sound sensors?
Audio and sound sensors are devices that can detect sound waves and make them visible. Sound sensors allow not only the pure sound to be detected, but also the strength of the sound. This information is used to determine different volume levels and to record sounds, music and tones.
What can audio and sound sensors do?
The way sound sensors work is simple. The outgoing sound waves hit a membrane in the sensor, which then begins to vibrate. Subsequently, these vibrations are converted into an electrical signal and transmitted to an external system. An example of a sound sensor is a microphone that picks up sound waves and converts them into an electrical signal. Sound sensors are often used in audio technology and communication technology. Audio sensors convert an electrical signal into sound waves and thus have a reversed mode of operation compared to sound sensors. Therefore, audio sensors are also called actuators because they can convert electrical signals into motion and have an acoustic effect. An example of an audio sensor is a loudspeaker that uses electrical signals to trigger a vibration in the installed membrane, which in turn results in an acoustic signal.
What is the advantage?
If you are looking for a suitable amplifier or a sound sensor, then the Raspberry Pi or Arduino sound and audio sensors are just what you need. Audio and sound sensors have the advantage that they detect sound waves and make them measurable by converting them into electrical signals. In the course of this, sound waves can be recorded, analyzed and evaluated. For example, you can easily determine the volume and quality of music. In addition to the detection and playback of sounds and music, there are also sound modules with motion detectors that react to movements and can then record or play sounds. This technology is mainly used in security technology.
What should be considered when buying?
When buying audio and sound sensors, there are some important factors to consider in order to find the best sensor for the intended application. These include the sensitivity of the sensor, its accuracy, and its compatibility with existing systems and devices. Examples include sensors from Seeed Music, Rasperry Pi or Arduino, which are just right for your project.