The Sound Blanket
Its key aspects are:-
- Sounds specific to the user are recorded
- Light but strong box
- Runs on batteries
- No programming skills needed
- 8 Push Buttons with 8 Sounds
The Sound BlanketIts key aspects are:-
|
|
Narrative The purpose was to provide a set of sounds which the recipient would find "calming". This required a recording session using a Zoom H4n portable sound recorder. These files were then copied onto an SD card to be loaded on to the "Bare conductive" board. This board was used because of it's multi-functional capability thereby saving space in the container box. Reducing component count keeps the weight down and improves reliability. The push button were either "Arcade" buttons or industrial grade to provide reliability. The whole device then being powered by (originally) a set of 4 * 1.5 batteries. The device lasted about 9 months until it eventually got damaged. The unit was refurbished. The 4 cell battery case replaced by a 9v arrangement to further reduced weight and prevent damage if dropped. It has since (Nov 2016)been returned back to it's user. |
 |
 |
| Components | Description / Hardware Functional Areas |
 |
Bare Conductive
|
 |
Amplifier PAM8403 Two-Channel Amplifier Module Mini Digital Amplifier Board This is a "Class D" stereo amplifier that will happily run on 5v, so needs a regulator to drop the e9v battery down to 5v. |
 |
Voltage Regulator. As the eBoard is powered by a single 9v battery, an onboard 5v regulator was required to provide the 5 volts for the "Bare Conductive Board". This regulator can source up to 2.5 Amps so it is useful if a 5 volt amp is used. |
Other components |
|