Storm Interface AT00-15001 Microphone Array Module Instruction Manual
- September 13, 2024
- Storm Interface
Table of Contents
Microphone Array Module
Technical Manual
AT00-15001 Microphone Array Module
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and design registration. All rights reserved
Product Features
The Microphone Array Module is an accessible interface device delivering clear voice reception in exposed, unsupervised, public applications.This enhances the accessibility of touchscreen kiosks by the addition of speech input command. Simply connect the Array Microphone to a Windows USB port and the device will enumerate as a recording device (no special drivers are required). Connection to the host system is via a Mini B USB socket with an integrated cable anchor. A suitable USB Mini B to USB A cable is sold separately
- 55mm microphone separation for max performance
- Includes Far-Field voice capture technology.
- Voice Assistant Support
- Active noise cancelling
- USB mini-B socket for connection to host
- Underpanel install to 3mm weld studs
- Dims 88mm x 25mm x 12mm
This can be used together with the Microphone Activation Sensor to implement a
Voice Recognition or Speech Commanded application in public or exposed
environments. To ensure privacy and protection of personal data Storm strongly
recommend that the microphone is maintained, by default, in a muted (or
closed) condition. More importantly, any system user or person in the
immediate vicinity of the Microphone Array Module must be notified of its
presence and status.
This notification is facilitated by the Microphone Activation Sensor which
detects when a user is in the immediate (addressable) vicinity of the kiosk.
This also features the internationally recognized microphone icon as a highly
visible and tactilely discernible symbol.
Installation Details
To implement the recommended mode of operation, when the Microphone Activation
Sensor detects someone remaining in the ‘addressable zone’ it will transmit a
unique Hex Code to the Customer Interface Software (CX).
The CX Software should respond to that code with an audio message and visible
screen text, e.g. “This kiosk is equipped with speech command technology”. “To
activate the microphone please press the enter key”.
Only when the CX Software receives that second code (from the enter key press)
should it activate the microphone, transmit the audio message “Microphone On”
and turn on the illumination of the microphone symbol.
When the transaction is complete and the person leaves the addressable zone,
the Microphone Activation Sensor transmits another, different Hex Code. Upon
receipt of this code the CX Software should mute (close) the microphone and
turn off the illumination of the microphone symbol.
It is important to note that the microphone and the illumination of the
microphone symbol are under the direct control of the Customer Interface
Software (CX) which usually resides within the Cloud or within the host
system.
The CX Software is also responsible for providing any audio messages or
prompts.
Example of Standard Transaction Flow between user / kiosk / host (using AVS as
example)
USB Interface
- USB Advanced Recording Device
- No special drivers required
Part Numbers
| AT00-15001 | MICROPHONE ARRAY MODULE |
|---|---|
| AT01-12001 | MICROPHONE ACTIVATION SENSOR |
| 4500-01 | USB CABLE – ANGLED MINI-B TO A, 0.9M LONG |
| AT00-15001-KIT | MICROPHONE ARRAY KIT(inc Microphone Activation Sensor) |
Specifications
| O/S Compatibility | Windows 10 / iOS/Android |
|---|---|
| Rating | 5V ±0.25V (USB 2.0) |
| Connection | mini USB B socket |
| Voice Assistant | Support for : Alexa/ Google Assistant/ Cortana/Siri |
Support
Configuration Utility for Firmware Updating / loading custom firmware
SETUP
Connect the Array Microphone to a Windows USB port and the device will
enumerate as a sound device (no special drivers are required) and will show up
on device manager as shown below:
The Array Microphone will show as USB Advanced Recording Device In the sound
panel it will show up as per the screenshot below : It is recommended for
speech recognition that the sample rate is set to 8 kHz : click on Properties
and then select the sample rate
(in the Advanced tab).
TESTING WITH CORTANA
Using Windows 10, check that Cortana is enabled. Go to Cortana settings and
enable it as shown below: Then if you say “Hey Cortana” the screen will be
displayed:
say “Tell me a joke”
Cortana will respond with a joke.
Or
say “Hey Cortana” … “Give me a football fact”
You can also issue windows command for instance e.g. to open file explorer:
“Hey Cortana” .. “Open file explorer” TESTING WITH AMAZON VOICE SERVICES
We have used two types of application to test the Array microphone with Amazon
Voice Services:
- Alexa AVS sample
- Alexa online simulator.
ALEXA AVS SAMPLE
We have installed the following application on the host system and modified
the app to work with the Storm Array Microphone and Storm AudioNav.
https://github.com/alexa/alexa-avs-sample-app/wiki/Windows
To install this requires an AVS developer account and other components.
If you would like more details about the installation of this modified
application, please contact us
ALEXA ONLINE SIMULATOR
The Alexa online simulator performs same task as an Alexa device.
The tool can be accessed from here: https://echosim.io/welcome
You will need to login to Amazon. Once logged in the following screen will be
displayed:
Click on the microphone ICON and keep it pressed.
Alexa will start listening, just say:
“Tell me a joke” and then release the mouse
Alexa will respond with a joke.
You can try other skills in Amazon – see following pages.
Go to the Alexa skills page
Click on Travel & Transportation
Select a skill and make sure you enable it.
National Rail Enquiries Skill
In the UK we have a transportation skill that allows two way voice
communication between the user and the app:
https://www.amazon.co.uk/National-Rail-
Enquiries/dp/B01LXL4G34/ref=sr_1_1?s=digitalskills&ie=UTF8&qid=1541431078&sr=1-1&keywords=alexa+skills
Once you have enabled it then try the following:
Click on the microphone icon, keep it pressed,
say:
“Alexa, ask National Rail to plan a journey”
Alexa will respond with:
“Okay this will save your commute, do you want to continue”
say :
“yes”
Alexa will respond with
“Lets plan a journey, what is your departure station”
say:
“London Waterloo”
Alexa will respond with
“Waterloo in London, right”
say:
“Yes”
Then Alexa will ask you how long it will take you to walk to the station.
Then repeat to choose your destination station.
Once it has all the information, Alexa will respond with the next three trains
that will depart.
Change History
| Tech Manual | Date | Version | Details |
|---|---|---|---|
| 15 Aug 24 | 1.0 | Split out from Application Note | |
| Product Firmware | Date | Version | Details |
| --- | --- | --- | --- |
| 04/11/21 | MICv02 | Introduced | |
Microphone Array Module
Technical Manual v1.0
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