Products for USB Sensing and Control

Products for USB Sensing and Control

PHIDGETS Inc.

Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
Canada
+1 403 282-7335

Sound Phidget

ID: SND1000_0

Measure sound from 34 to 102 dB (SPL). Supports A and C weightings, and can split data into distinct frequency bands.

$15.00

Quantity Available: 461

Qty Price
5 $14.25
10 $13.50
25 $12.00
50 $10.50
100 $9.75
250 $9.00
500 $8.25
1000 $7.50

Measure sound pressure level of a room or an environment with this neat little Phidget that plugs into a VINT port (See the "Compatible Products" tab for a list of VINT Hubs). You could also use it to detect the occurance of sudden noises. The sensor returns data in dB (SPL), which is decibels relative to the quietest noise a human can hear.



Pre-weighted Data

The Sound Phidget also reports data in dBA (SPL) and dBC (SPL). These are special standardized weightings of the frequency range created for specific purposes. For example, dBA puts less emphasis on lower frequencies that the human ear doesn't pick up, making it ideal for measuring loudness as heard by your ear.

Frequency Analysis

This Phidget is also capable of analyzing specific frequency bands of sound. Every time data is sent to your program, an array of 10 values will be sent, each one corresponding to a different frequency band ranging from 31.5 Hz to 16kHz centered.

Product Specifications

Board Properties
Controlled By VINT
Sensor Properties
Sound Level Min * 34 dB
Sound Level Max 102 dB
Sampling Interval Max 1000 ms/sample
Sampling Interval Min 100 ms/sample
Electrical Properties
Current Consumption Max 26 mA
Current Consumption Min (unconfigured) 16 μA
Physical Properties
Operating Temperature Min -20 °C
Operating Temperature Max 70 °C
* - Below 34 dB, the sensor will be picking up white noise.

Software Objects

Channel NameAPIChannel
Sound Sensor SoundSensor 0

API


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Documents

Library & Driver Downloads

Code Samples

APILanguageOS
SoundSensor C Multiple Download
SoundSensor C# Windows Download
SoundSensor Java Multiple Download
SoundSensor JavaScript Any Download
SoundSensor Objective-C macOS Download
SoundSensor Python Multiple Download
SoundSensor Visual Basic .NET Windows Download

Product History

Date Board Revision Device Version Comment
June 20170101Product Release

Getting Started

Welcome to the SND1000 user guide! In order to get started, make sure you have the following hardware on hand:


Next, you will need to connect the pieces:

SND1000 Functional.jpeg
  1. Connect the SND1000 to your VINT Hub using the Phidget cable.
  2. Connect the VINT Hub to your computer using the USB cable.


Now that you have everything together, let's start using the SND1000!

Using the SND1000

Phidget Control Panel

In order to demonstrate the functionality of the SND1000, the Phidget Control Panel running on a Windows machine will be used.


The Phidget Control Panel is available for use on both macOS and Windows machines. If you would like to follow along, first take a look at the getting started guide for your operating system:


Linux users can follow the getting started with Linux guide and continue reading here for more information about the SND1000.

First Look

After plugging the SND1000 into your computer and opening the Phidget Control Panel, you will see something like this:

SND1000 Panel.jpg


The Phidget Control Panel will list all connected Phidgets and associated objects, as well as the following information:

  • Serial number: allows you to differentiate between similar Phidgets.
  • Channel: allows you to differentiate between similar objects on a Phidget.
  • Version number: corresponds to the firmware version your Phidget is running. If your Phidget is listed in red, your firmware is out of date. Update the firmware by double-clicking the entry.


The Phidget Control Panel can also be used to test your device. Double-clicking on an object will open an example.

Sound Sensor

Double-click on the Sound Sensor object, labelled Sound Phidget, in order to run the example:

SPL Example.jpg


General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • Modify the change trigger and/or data interval value by dragging the sliders. For more information on these settings, see the data interval/change trigger page.
  • Use the SPL Range drop-down menu to select the lowest possible range that the level of sound you're measuring will fall within (smaller ranges have higher resolution).
  • Use the Speaker Beep tool to emit a 2.5 second beep of the specified frequency. View the frequency bands and see how they respond.

Technical Details

Acoustic Weightings

The A-weighting is shown in blue and the C-weighting in red. The unweighted response would be a flat line at 0 gain.

Depending on your application, you may be interested in acoustic data with weightings applied. The SND1000 returns a SPL value with the A-weighting applied, C-weighting applied, and with no acoustic weighting applied.

Sensitivity

The microphone on the SND1000 is slightly more responsive to some frequencies than others. The following graph illustrates this difference:

SND1000-frequency.jpeg

What to do Next

  • Software Overview - Find your preferred programming language here to learn how to write your own code with Phidgets!
  • General Phidget Programming - Read this general guide to the various aspects of programming with Phidgets. Learn how to log data into a spreadsheet, use Phidgets over the network, and much more.
  • Phidget22 API - The API is a universal library of all functions and definitions for programming with Phidgets. Just select your language and device and it'll give you a complete list of all properties, methods, events, and enumerations that are at your disposal.

VINT Hubs

This Phidget is a smart device that must be controlled by a VINT Hub. For more information about VINT, have a look at the VINT Primer. You can use a Phidget Cable to simply and easily connect the two devices. Here's a list of all of the different VINT Hubs currently available:

Product Board
Image Part Number Price Number of VINT Ports
HUB0000_0 $30.00 6
SBC3003_0 $120.00 6

Phidget Cables

Use a Phidget cable to connect this device to the hub. You can solder multiple cables together in order to make even longer Phidget cables, but you should be aware of the effects of having long wires in your system.

Product Physical Properties
Image Part Number Price Cable Length
3002_0 $2.00 600 mm
3003_0 $1.50 100 mm
3004_0 $3.00 3.5 m
3034_0 $1.50 150 mm
3038_0 $2.25 1.2 m
3039_0 $2.75 1.8 m

Have a look at our sound sensors:

Product Board Properties Sensor Properties
Image Part Number Price Controlled By Sound Level Min Sound Level Max
1133_0 $35.00 Voltage Input (0-5V) 50 dB 100 dB
SND1000_0 $15.00 VINT * 34 dB 102 dB