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This small and affordable device is a standalone audio file player using a micro-SD card. It features a processor capable of making playback "intelligent" — that’s what makes it the Ambi'Son!
For simple use:
- At startup, it plays all files randomly, endlessly
- A short press on the push button (< 5 seconds) triggers one random file playback
- A long press on the push button (> 5 seconds) triggers all files in order, endlessly
It’s ideal for creating an audio kiosk, a sound installation, a museum display, a stage setup, integrating into a work of art, or for model railroading, for example.
For advanced use, read the user manual.
If you're looking for a simpler and even more affordable module, check out my "Exposi'Son". Need help choosing between the two?
If you have any questions, contact me!
En vidéo
Additional information
Here are a few small examples of what it can be used for:
- The "Quiz'O'Phone" with a single question or multiple ones, Christmas edition.
- A sound installation in a mirror maze.
- A meditation box, my "Médita'Son".
- A sound die.
- A poetic old hotel phone.
- Theatrum Mundi, a work by Camille SAUER, equipped with several Ambi'Son modules.
- A music box for a theater troupe.
- A storytelling box ordered by a client with no electronics knowledge.
- A sound box.
- Etc.
All kinds of projects are possible, so if you want to explore feasibility, contact me.
Details
You'll need to equip it and possibly build a small enclosure yourself, but make sure NOTHING conductive touches the circuit board. There's a risk of fatal short circuit to the module!
I fully designed the device — from the PCB layout to soldering the components and programming. It is handmade.
The module alone is very energy-efficient. On rare occasions, so-called “smart” power banks may shut off, cutting power — especially at low audio levels.
If you have any questions, suggestions or issues, contact me.
Photos, videos, components, colors, versions, etc. are non-contractual.
Technical Specifications
- User manual
-
Power supply:
- DC5521 jack (5.5 mm x 2.1 mm), DC 7 to 12V
- Screw terminal (DC 7 to 12V)
- USB-C (via the Nano interface)
- Inputs/Outputs: 9 digital and 7 analog from the Nano
- Programming the Nano via USB-C. Here is my base program.
- Storage: "MicroSD" or "TF" card (sold separately), up to 32 GB
- Formats: .mp3 and .wav
- Channels:
- Stereo via Line output
- Mono via Speaker output (left and right mixed)
- Playback options via push button:
- Looped, random
- Looped, in order
- Once, a single file
- Output impedance: Line (for headphones or external amp) or Speaker (3W @ 4 Ohms amplified), selectable with a switch
- Volume: Manually adjustable, digital control
- Audio outputs:
- 3.5 mm jack
- Screw terminal
- Power consumption: between 100 mA and 200 mA depending on setup
- Dimensions: 78 mm x 55 mm (excluding potentiometer and jack), 20 mm thick. Mounting details: see last image.
- Sensitive to moisture and rain: for indoor or well-protected use only.
- Handmade
Sold Separately
- MicroSD card, to store your files
- Speaker or resonator, 3 Watts, to play your sounds
- DC power supply, to power your module
- DC power extension, to increase the distance between power source and module
- DC splitter, to connect multiple modules to a single power supply
- 9V connector or a 6xAA battery holder, to power it with batteries
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