AU$ 4,851
pledged of AU$ 11,000pledged of AU$ 11,000 goal
81
backers
0seconds to go
Funding Canceled
Funding for this project was canceled by the project creator on May 31 2018
AU$ 4,851
pledged of AU$ 11,000pledged of AU$ 11,000 goal
81
backers
0seconds to go
Funding Canceled
Funding for this project was canceled by the project creator on May 31 2018

What is a prototype?

A prototype is a preliminary model of something. Projects that offer physical products need to show backers documentation of a working prototype. This gallery features photos, videos, and other visual documentation that will give backers a sense of what’s been accomplished so far and what’s left to do. Though the development process can vary for each project, these are the stages we typically see:

Proof of Concept

Explorations that test ideas and functionality.

Functional Prototype

Demonstrates the functionality of the final product, but looks different.

Appearance Prototype

Looks like the final product, but is not functional.

Design Prototype

Appearance and function match the final product, but is made with different manufacturing methods.

Production Prototype

Appearance, function, and manufacturing methods match the final product.

4e1480acd95c8fab2aff85e24457f463 original.jpg?ixlib=rb 1.1

Prototype Gallery

These photos and videos provide a detailed look at this project’s development.

About

This is an ultra high quality ultrasound card. It gives high fidelity input and output audio @ 192 kHz. It also has digital output (S/PDIF) and dual microphone capability !

Audio injector Ultrasound card for the raspberry Pi. This is the standard package. The sound card comes with the optical SPDIF connector, the breakout boards and connectors+cables.
Audio injector Ultrasound card for the raspberry Pi. This is the standard package. The sound card comes with the optical SPDIF connector, the breakout boards and connectors+cables.

This ultra sound card provides stereo analogue output and input. The output can also be sent using the optical SPDIF line. It has two input microphones which are mounted on the sound card. Further, powered add on hats can be built for this card.

The sound card is ultra because it uses premium components to ensure a low noise floor, low jitter and low harmonic distortion. It also provides optional balanced signal drivers and receivers.

There is an optional balanced hat which will send and receive balanced stereo input and output.

We need your input   

Please drop comments on our campaign and feel free to visit our support/discussion forum. We are really keen to get your ideas on how to make this product more suitable for your needs.

Assembled balanced board snaps on top of the Ultra card.
Assembled balanced board snaps on top of the Ultra card.

Previous Kickstarter Projects :   

The audio injector pi sound card : successful and shipped

The audio injector octo sound card for the Pi : successful and shipped

The audio injector zero sound card for the Pi : successful and shipped

The PCB quick connect clip : successful and shipped

Stretch goals :

  • Unlocked at $13 000 : Include one 3.5mm headphone jack for an IO breakout board.
  • Unlocked at $15 000 : Include one potentiometer for an IO breakout board.
  • Unlocked at $16 000 : Include a second 3.5mm headphone jack for the other IO breakout board.
  • Unlocked at $18 000 : Include a second potentiometer for the other IO breakout board.
  • Unlocked at $21 000 : Include a stereo 1/4" jack for an IO breakout board.
  • Ulocked at $23 000 : Include a second stereo 1/4" jack for the other IO breakout board.
  • Any ideas for other stretch goals - or do you want to switch stretch goals ? Drop comments on the campaign if you do.
The Ultra sound card (included connector accessories not shown).
The Ultra sound card (included connector accessories not shown).

Ultra Specifications :

* Direct Inputs : Unpopulated Analogue Connectors (stereo RCAs provided)

* Direct Outputs : Unpopulated Analogue Connectors (stereo RCAs provided), Digital Optical SPDIF (Optical transducer provided)

* Potentiometer Inputs : Unpopulated Connectors and potentiometer (stereo pot. not provided). These are located on the IO boards.

* Potentiometer Outputs : Unpopulated Connectors and potentiometer (stereo pot. not provided). These are located on the IO boards.

* Microphone : Two high quality ultrasound (model - SPU0410LR5H) surface mount microphones populated for you.

* Sample rate : 192 kHz, 24 bit

* Jitter control : Low jitter clock oscillator

* Hardware: Works with the Raspberry Pi2, Pi3 and Zero, etc.

* Codec : cs4265 (detail here)

* Metal film capacitors in the line driver/receiver audio paths - yielding low harmonic distortion levels.

* TI DRV632 line drivers on output giving 2Vrms (5.66 V peak-to-peak)

* Mute line driven outputs - for silence !

* Breakout pins give : 5v, Rin, Lin, InGND, Rout, Lout, GND, Mute. Use the breakout pin/headers as 3 pins for unbalanced outputs or 4 pins for balanced outputs - providing the 5v power and mute lines.

Balanced pledges get the regular Ultra sound card and accessories package, but also the balanced breakout boards and TRS connectors. Everything you need to get you running in balanced line mode !
Balanced pledges get the regular Ultra sound card and accessories package, but also the balanced breakout boards and TRS connectors. Everything you need to get you running in balanced line mode !

Balanced Ultra Specifications : 
  

* Same specificatios as per the Ultra board (it and the standard accessories are included)

* Balanced line drivers (TI DRV632 5.66 V peak-to-peak)

* TI INA1650 balanced line receivers

* Output connectors : 1/4" TRS connectors (unpopulated)

* Input connectors : 1/4" TRS connectors (unpopulated)

Examples of assembled breakout boards - which can be used for both input and output stereo analogue connections.
Examples of assembled breakout boards - which can be used for both input and output stereo analogue connections.

Characterisation

With current development, we are measuring a loop back (DAC -> ADC direct connection) noise floor of -90 dB.

Low noise floor.
Low noise floor.

Risks and challenges

This is a reasonably low risk project. We have previously had three Kickstarter projects and shipped those products on time. This sound card is already prototyped and tested.

Learn about accountability on Kickstarter

Questions about this project? Check out the FAQ

Support

  1. Select this reward

    Pledge AU$ 26 or more About $18

    An ultra sound card for the Pi ($19 USD)

    You will receive 1 audio injector ultra sound card for the Pi plus any stretch goal items.

    Shipping is around $5 USD for Europe and America, and a little more for the rest of the world.

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    30 backers
    AU$
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  2. Select this reward

    Pledge AU$ 52 or more About $37

    Two ultra sound cards ($38 USD)

    You will receive 2 audio injector ultra sound cards for the Pi plus any stretch goal items.

    Shipping is around $5 USD for Europe and America, and a little more for the rest of the world.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    11 backers
    AU$
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  3. Select this reward

    Pledge AU$ 52 or more About $37

    Balanced ultra card for the Pi ($38 USD)

    You will receive 1 audio injector ultra sound card, with 1 balanced breakout board.
    Plus any stretch goal items.

    Shipping is around $7 USD for Europe and America, and a little more for the rest of the world.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    23 backers
    AU$
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  4. Select this reward

    Pledge AU$ 78 or more About $55

    Three ultra sound cards ($57 USD)

    You will receive 3 audio injector ultra sound cards for the Pi plus any stretch goal items.

    Shipping is around $5 USD for Europe and America, and a little more for the rest of the world.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    5 backers
    AU$
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  5. Select this reward

    Pledge AU$ 104 or more About $74

    Four ultra sound cards ($76 USD)

    You will receive 4 audio injector ultra sound cards for the Pi plus any stretch goal items.

    Shipping is around $6 USD for Europe and America, and a little more for the rest of the world.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    4 backers
    AU$
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  6. Select this reward

    Pledge AU$ 104 or more About $74

    2 Balanced ultra cards ($76 USD)

    You will receive 2 audio injector ultra sound cards, with 2 balanced breakout boards.
    Plus any stretch goal items.

    Shipping is around $9 USD for Europe and America, and a little more for the rest of the world.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    4 backers
    AU$
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  7. Select this reward

    Pledge AU$ 156 or more About $111

    3 Balanced ultra cards ($114 USD)

    You will receive 3 audio injector ultra sound cards, with 3 balanced breakout boards.
    Plus any stretch goal items.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    1 backer
    AU$
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  8. Select this reward

    Pledge AU$ 208 or more About $148

    4 Balanced ultra cards ($152 USD)

    You will receive 4 audio injector ultra sound cards, with 4 balanced breakout boards.
    Plus any stretch goal items.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    1 backer
    AU$
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  9. Select this reward

    Pledge AU$ 260 or more About $185

    Ten ultra sound cards ($190 USD)

    You will receive 10 audio injector ultra sound cards for the Pi plus any stretch goal items.

    Shipping is around $9 USD for Europe and America, and a little more for the rest of the world.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    0 backers
    AU$
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  10. Select this reward

    Pledge AU$ 260 or more About $185

    5 Balanced ultra cards ($152 USD)

    You will receive 5 audio injector ultra sound cards, with 5 balanced breakout boards.
    Plus any stretch goal items.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    0 backers
    AU$
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  11. Select this reward

    Pledge AU$ 390 or more About $277

    Fifteen ultra sound cards ($285 USD)

    You will receive 15 audio injector ultra sound cards for the Pi plus any stretch goal items.

    Shipping is around $11 USD for Europe and America, and a little more for the rest of the world.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    0 backers
    AU$
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  12. Select this reward

    Pledge AU$ 520 or more About $369

    Twenty ultra sound cards ($380 USD)

    You will receive 20 audio injector ultra sound cards for the Pi plus any stretch goal items.

    Shipping is around $14 USD for Europe and America, and a little more for the rest of the world.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    0 backers
    AU$
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  13. Select this reward

    Pledge AU$ 520 or more About $369

    10 Balanced ultra cards ($380 USD)

    You will receive 10 audio injector ultra sound cards, with 10 balanced breakout boards.
    Plus any stretch goal items.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    0 backers
    AU$
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  14. Select this reward

    Pledge AU$ 780 or more About $554

    15 Balanced ultra cards ($570 USD)

    You will receive 15 audio injector ultra sound cards, with 15 balanced breakout boards.
    Plus any stretch goal items.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    0 backers
    AU$
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  15. Select this reward

    Pledge AU$ 1,040 or more About $739

    20 Balanced ultra cards ($760 USD)

    You will receive 20 audio injector ultra sound cards, with 20 balanced breakout boards.
    Plus any stretch goal items.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    0 backers
    AU$
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Funding period

- (49 days)