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Durio Sound adds a 24-bit 192kHz ultimate sound quality with the lowest possible distortion to your Raspberry Pi.
Durio Sound adds a 24-bit 192kHz ultimate sound quality with the lowest possible distortion to your Raspberry Pi.
172 backers pledged $16,614 to help bring this project to life.

About this project

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$16,614

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Introducing Durio Sound for Raspberry Pi: a DAC for Raspberry Pi that let you enjoy a dynamic ultimate sound quality. The Durio Sound will get your music to a quality that is much closer to how the artists originally intended, helping to hear sounds that you never could have before.

Durio Sound for Raspberry Pi adds a high-quality sound to your Raspberry Pi. Our sound cards are designed for optimal sound output quality. It is the ideal solution for all Raspberry Pi users that love music. 

Durio Sound connects directly to the Raspberry Pi where no external cables are needed. No need to solder any header or wire, just stack the Durio Sound on top of your Raspberry Pi because the board is the same size as the Raspberry Pi. It is also supported in the standard Raspberry Pi kernel that is included in the Raspbian distribution ranging from A, B, and B+.


Durio Sound
is a modular concept of professional audio solutions. It provides high quality audio conversion (DAC), flexible interface extensions as well as audio quality enhancements. 

The Durio Sound can be combined with any computer or module capable to provide digital audio signals, e.g. Raspberry Pi etc. The Durio Sound DAC processes the high quality I2S signal which is provided by any source. 

Additional interface modules such as S/PDIF, TOSLINK, USB will enrich the Durio Sound System, to make it flexible for all your audio applications. For instance: using the Raspberry Pi allows you to:
     – play audio stored on local devices (USB, SD Card, DNLA)
     – to receive and play audio via networks, e.g. coming from the Internet, wireless as well as wired
     – to connect the Durio Sound Audio player with other audio network streamers
     – to control the player remotely from any other network device, including using your smartphone

Durio Sound is the most flexible way for computer based audio solutions with a very high sound quality provided.

Here is the diagram show how is the Durio Sound play music:

Durio Sound comes with 2 options:

BASIC – This option comes with the very-low-noise 3.3V LDO voltage regulator which provide a cleaner power to the DAC chip. You still need to power the board via the USB cable from the Raspberry Pi.

PRO – In additional to the Basic, this option comes fully loaded with the 5V switching power supply. You can power the system via the external AC or DC wall transformer. This provide the cleanest power to the DAC chip for the ultimate sound quality.

The Durio Sound works by receiving the digital I2S signal from the Raspberry Pi. The signal get process by the PCM5102 DAC chip then send out as the analog waveform to the 3.5mm jack and the RCA connectors. The key to an ultimate sound quality is to provide the cleanest power to the DAC chip. The Durio Sound has accomplish this task with the high quality on-board +5V switching mode power supply and the +3.3V very-low-noise LDO voltage regulator. All of the components are carefully selected (i.e. audiophile grade capacitors, resistors, gold-plated phono sockets and etc.). A block diagram below shows how this work.


Here is the demo:

The design is hackable, expandable and open source. 

Here is the schematic of the Durio Sound.

Pledges


Here is what you're getting with $130 pledge

- Raspberry Pi B+
- Beautiful clear acrylic - Naked Pi case
- Durio Pro


Durio DualMono or Multi-DAC:

Start smart: go with Durio Sound Pro. Add anytime later a Durio Sound basic to it, create a Dual DAC.

It will give you additional 3 dB SNR or half a bit better resolution. Even fancy: add as many basic versions, e.g. up to ten: every parallel DAC gives you additional 3 dB better quality.

It will work with all sound sources, any Raspberry Pi, SPDIF etc. Improve any time the quality of your audio by going Dual or even Multi-DAC.  



Thank you for our supporter to make the prototype happen.

- Mr. Pitichai Pitimaneeyakul

- Mr. Torsten Jaekel
- Munkong Gadget Store
- Gravitech
- Volumio

Risks and challenges

The goal and challenge for this project is to improve the sound quality of the Raspberry Pi. We've to use the high grade components and at the same time make it affordable so everyone can enjoy this ultimate sound quality. We have overcome these challenges of the design, production, supply chain and sourcing. The boards are fully tested and working. We offer many artists to listen to the Durio Sound and gave us the feedback for the final fine tune adjustment. As well as the sound lab researcher to help us with the technicality aspect to further perfecting our product.

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Support this project

  1. Select this reward

    Pledge $1 or more About $1.00

    THANK YOU! We just want you to know that any pledge is appreciated. This really help to support our open source community

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  2. Select this reward

    Pledge $15 or more About $15

    HUGE THANKS! You'll received a beautiful acrylic Durio Sound key chain with our famous Durian logo on it. (Shipping November 10, 2014)

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  3. Select this reward

    Pledge $45 or more About $45

    Durio Sound BASIC: You'll received a Durio Sound Basic board. This is an option with the 3.3V LDO regulator for those who just want to try out the power of PCM5102 DAC. (Shipping November 17, 2014)

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  4. Select this reward

    Pledge $70 or more About $70

    Durio Sound PRO: You'll received a Durio Sound Pro board. This is a full option board for the ultimate sound quality. The board is fully loaded with the 5.0V Switching power supply and 3.3V LDO regulator for those who want the best sound experience. (Shipping November 17, 2014)

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  5. Select this reward

    Pledge $85 or more About $85

    Durio Sound BASIC + Raspberry Pi B+: You'll received a Durio Sound Basic and a Raspberry Pi B+ board. (Shipping November 17, 2014)

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  6. Select this reward

    Pledge $110 or more About $110

    Durio Sound Pro + Raspberry Pi B+: You'll received a Durio Sound Pro and a Raspberry Pi B+ board. (Shipping November 17, 2014)

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  7. Select this reward

    Pledge $115 or more About $115

    Durio DualMono: You'll received a Durio Sound Basic x1 and Pro x1. Use them to setup the DualMono or Multi-DAC mode. Improve SNR by 3dB!

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    7 backers
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  8. Select this reward

    Pledge $130 or more About $130

    Durio Sound Pro + Raspberry Pi B+ and Naked Pi case: You'll received a Durio Sound Pro, a Raspberry Pi B+ board and a Naked Pi case (this is a beautiful clear acrylic case from our last Kickstarter project). (Shipping November 17, 2014)

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  9. Select this reward

    Pledge $150 or more About $150

    Pro ALL THE WAY: You'll received the following: Raspberry Pi B+, Durio Sound Pro, 8GB microSD (with OS and driver, ready for use), Tenda Wifi Adapter (for hotspot), Naked Pi case

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  10. Select this reward

    Pledge $180 or more About $180

    DualMono ALL THE WAY: You'll received the following: Raspberry Pi B+, Durio Sound Pro, Durio Sound Basic, 8GB microSD (with OS and driver, ready for use), Tenda Wifi Adapter (for hotspot), Naked Pi case

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Funding period

- (21 days)