MrAI-Help(Component-SoundMeter)

Help Reference for mrSoundMeter Component

About the mrSoundMeter component

The mrSoundMeter component is non visible component  which can be found in the “Sensor” component group on the left hand side of the designer screen.

The comnent is used to detect a sounds picked up from the microphone and returns this a the sound level value. The mic actually picks up a sound level as Amplitude between 0-3auto7 but this isn’t really that user friend so you can set a customize the maximum value which the sound level value is based on meaning that if you want to show the sound as a % the maximum sound level could be set to 100.

Program Block index

Key = Events         Properties         Functions

Slider Appearance Sound level Max from mic Sound Level from Mic ConvertSoundLevelTodB(soundLevel) ConvertSoundLevelToAmp(soundLevel) MicOn MicOFF Is Mic ON MicIsOn(soundLevelFromMic)

Program Blocks

Sound level Max from mic Allow you to customize the sound level value returned.

Parameters The mic actually picks up a sound level as Amplitude between 0-32767. With this property you can customize the max value so that when the soundlevel is returned it is based in the range of 0 to the Max Sound Level set. Examples If you wanted the volume to be return as a % then Max Sound Level = 100 If you wanted to use the sound level to change the RGB color then Max Sound Level = 255

Sound Level from Mic Return the current sound level value picked up from the mic.

Parameters Value is based on the Sound Level Max from mic

ConvertSoundLevelTodB(soundLevel) Return a sound level value to Decibels (dB)

ConvertSoundLevelToAmp(soundLevel) Return a sound level value to Amplitude

Mic ON Turn on the mic so the current sound level can be detected

Mic OFF Turn off the mic to stop detecting sound

Is Mic ON Returns if the mic is currently listening

Parameters True - Mic is on False - Mic is off

MicIsOn(soundLevelFromMic) Event that will fire every 100 milliseconds while the mic is on

Parameters soundLevelFromMic Returns the current sound level