{"id":4335,"date":"2021-01-30T05:38:36","date_gmt":"2021-01-29T22:38:36","guid":{"rendered":"https:\/\/www.phidgets.com\/education\/?page_id=4335"},"modified":"2022-06-01T03:49:23","modified_gmt":"2022-05-31T20:49:23","slug":"sound-level-meter","status":"publish","type":"page","link":"https:\/\/www.phidgets.com\/education\/learn\/projects\/sound-level-meter\/","title":{"rendered":"Sound Level Meter"},"content":{"rendered":"

[et_pb_section bb_built=”1″ specialty=”off” next_background_color=”#000000″ _builder_version=”4.4.1″ custom_padding=”||0px|” box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_row _builder_version=”4.4.1″ use_custom_gutter=”on” gutter_width=”3″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column type=”1_2″ custom_padding__hover=”|||” custom_padding=”|||”][et_pb_code admin_label=”Sound Level Meter” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n

Projects<\/a> <\/div>\n

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Sound Level Meter<\/h1>\n

[\/et_pb_code][et_pb_code admin_label=”Description” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]The Sound Phidget can be used to create a sound level meter. Sound level meters are important devices that provide useful information about noise in an environment. For example, many workplaces with noisy conditions must monitor the sound level to ensure their workers\u2019 safety. <\/pee>[\/et_pb_code][et_pb_code admin_label=”ph-button-cta: Start” _builder_version=”4.4.1″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″] <\/p>\n

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Start<\/a>[\/et_pb_code][\/et_pb_column][et_pb_column type=”1_2″ custom_padding__hover=”|||” custom_padding=”|||”][et_pb_image _builder_version=”4.6.6″ src=”https:\/\/www.phidgets.com\/education\/wp-content\/uploads\/2021\/01\/soundmeter_main.jpg” box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ \/][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section bb_built=”1″ specialty=”on” _builder_version=”4.4.1″ use_custom_gutter=”on” gutter_width=”3″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ prev_background_color=”#000000″][et_pb_column type=”1_4″][et_pb_code admin_label=”ph-vertical-nav” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ saved_tabs=”all”]<\/p>\n

Setup<\/a> Write code<\/a> Practice<\/a><\/div>\n

[\/et_pb_code][\/et_pb_column][et_pb_column type=”3_4″ specialty_columns=”3″][et_pb_row_inner _builder_version=”4.4.1″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ module_id=”setup”][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”3_4″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”3_4″][et_pb_code admin_label=”Setup” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ module_id=”setup”]<\/p>\n

Setup<\/h2>\n

Before getting started, make sure you have the following parts.<\/strong><\/pee>[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=”4.4.1″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ custom_padding=”||0px|”][et_pb_column_inner type=”1_3″ saved_specialty_column_type=”3_4″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”3_4″][et_pb_code admin_label=”Part: sound” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ saved_tabs=”all”]<\/p>\n

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Sensors \/<\/a> SND1000<\/a> <\/div>\n

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Sound Phidget<\/h3>\n

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[\/et_pb_code][et_pb_code admin_label=”Part: usb cable” _builder_version=”4.4.1″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ saved_tabs=”all”]<\/p>\n

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Cables\/<\/a> 3018<\/a> <\/div>\n

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USB cable<\/h3>\n

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[\/et_pb_code][\/et_pb_column_inner][et_pb_column_inner type=”1_3″ saved_specialty_column_type=”3_4″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”3_4″][et_pb_code admin_label=”Part: vint” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ saved_tabs=”all”]<\/p>\n

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Controllers \/<\/a> hub0000<\/a> <\/div>\n

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VINT Hub<\/h3>\n

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[\/et_pb_code][\/et_pb_column_inner][et_pb_column_inner type=”1_3″ saved_specialty_column_type=”3_4″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”3_4″][et_pb_code admin_label=”Part: phidget cable” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ saved_tabs=”all”]<\/p>\n

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Cables\/<\/a> 3003<\/a> <\/div>\n

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Phidget cable<\/h3>\n

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[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner admin_label=”Row”][et_pb_column_inner type=”1_2″ saved_specialty_column_type=”3_4″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”3_4″][et_pb_code admin_label=”Step 1″ _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n

Step 1<\/h3>\n

Attach the Sound Phidget to the VINT Hub, and VINT Hub to your computer.<\/pee>[\/et_pb_code][\/et_pb_column_inner][et_pb_column_inner type=”1_2″ saved_specialty_column_type=”3_4″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”3_4″][et_pb_image _builder_version=”4.6.6″ src=”https:\/\/www.phidgets.com\/education\/wp-content\/uploads\/2020\/11\/setup_sound_scaled.png” box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ show_in_lightbox=”on” \/][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner admin_label=”Row” disabled_on=”on|on|on” disabled=”on”][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”3_4″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”3_4″][et_pb_code admin_label=” (invisible anchor)” _builder_version=”4.4.1″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” module_id=”move” module_class=”ph-hidden-anchor” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ \/][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” module_class=”ph-user-java” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ module_id=”write-code”][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”3_4″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”3_4″][et_pb_code admin_label=”Write code Java” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n

Write code (Java)<\/h2>\n

Copy the code below into a new Java project. If you need a reminder of how to do this, revisit the Getting Started Course.<\/a> Insert the code below.Not your programming language? Set your preferences<\/a> so we can display relevant code examples<\/pee>[\/et_pb_code][et_pb_code admin_label=”Code Sample – Eclipse” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ module_class=”ph-user-eclipse”]<\/p>\n

  \/\/Add Phidgets Libraryimport com.phidget22.*;public class SoundLevelMeter {    public static void main(String[] args) throws Exception {        \/\/Create        SoundSensor soundSensor = new SoundSensor();        \/\/Open        soundSensor.open(1000);        \/\/Use your Phidgets        while (true) {            System.out.println(\"Sound pressure level:  \" + soundSensor.getdBA() + \" dBA\");            Thread.sleep(250);        }    }}  <\/code><\/pre>\n
[\/et_pb_code][et_pb_code admin_label=”Code Sample – Netbeans” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ module_class=”ph-user-netbeans”]<\/p>\n
  package soundlevelmeter;\/\/Add Phidgets Libraryimport com.phidget22.*;public class SoundLevelMeter {    public static void main(String[] args) throws Exception {        \/\/Create        SoundSensor soundSensor = new SoundSensor();        \/\/Open        soundSensor.open(1000);        \/\/Use your Phidgets        while (true) {            System.out.println(\"Sound pressure level:  \" + soundSensor.getdBA() + \" dBA\");            Thread.sleep(250);        }    }}  <\/code><\/pre>\n
[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” module_class=”ph-user-python” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ module_id=”write-code”][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”3_4″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”3_4″][et_pb_code admin_label=”Write code Python” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
Write code (Python)<\/h2>\n
Copy the code below into a new Python project. If you need a reminder of how to do this, revisit the Getting Started Course.<\/a> Insert the code below.Not your programming language? Set your preferences<\/a> so we can display relevant code examples<\/pee>[\/et_pb_code][et_pb_code admin_label=”Code Sample” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
  #Add Phidgets Libraryfrom Phidget22.Phidget import *from Phidget22.Devices.SoundSensor import *#Required for sleep statementimport time #CreatesoundSensor = SoundSensor() #OpensoundSensor.openWaitForAttachment(1000) #Use your Phidgetswhile (True):    print(\"Sound pressure level: \" + str(soundSensor.getdBA()) + \" dBA\")    time.sleep(0.25)  <\/code><\/pre>\n
[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=”4.4.1″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” module_class=”ph-user-csharp” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ module_id=”write-code”][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”3_4″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”3_4″][et_pb_code admin_label=”Write code C#” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
Write code (C#)<\/h2>\n
Copy the code below into a new C# project. If you need a reminder of how to do this, revisit the Getting Started Course.<\/a> Insert the code below.Not your programming language? Set your preferences<\/a> so we can display relevant code examples<\/pee>[\/et_pb_code][et_pb_code admin_label=”Code Sample” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
  \/\/Add Phidgets Libraryusing Phidget22;namespace SoundLevelMeter{    class Program    {        static void Main(string[] args)        {            \/\/Create            SoundSensor soundSensor = new SoundSensor();            \/\/Open            soundSensor.Open(1000);            \/\/Use your Phidgets            while (true)            {                System.Console.WriteLine(\"Sound pressure level: \" + soundSensor.dBA + \" dBA\");                System.Threading.Thread.Sleep(250);            }        }    }}  <\/code><\/pre>\n
[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=”4.4.1″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” module_class=”ph-user-swift” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ module_id=”write-code”][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”3_4″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”3_4″][et_pb_code admin_label=”Write code Swift” _builder_version=”4.4.3″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
Write code (Swift)<\/h2>\n
Copy the code below into a new Swift project. If you need a reminder of how to do this, revisit the Getting Started Course.<\/a> Insert the code below.Not your programming language? Set your preferences<\/a> so we can display relevant code examples<\/pee>[\/et_pb_code][et_pb_code admin_label=”Code Sample” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
  Coming Soon!  <\/code><\/pre>\n
[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=”4.4.1″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”3_4″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”3_4″][et_pb_code admin_label=”Instructions” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]Run your program. You will see the dBA value printed to the screen. If you make a noise near the sensor, you will see the value increase!<\/>[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=”4.4.1″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”3_4″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”3_4″][et_pb_code admin_label=”What is dBA?” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
What is dBA?<\/h2>\n
You may have noticed that the code above uses getdBA()<\/strong> instead of getdB()<\/strong>. Sound level meters use different frequency weightings to better understand the noise and how it impacts humans. The Sound Phidget provides the following weightings:<\/pee><\/p>\n