# Stand alone Raspberry Pi Bluetooth, Audio Streamer, Dolby/DTS decoder DAC for stereo amplifiers

**URL:** <https://forum.core-electronics.com.au/t/stand-alone-raspberry-pi-bluetooth-audio-streamer-dolby-dts-decoder-dac-for-stereo-amplifiers/18764>\
**Category:** Product Questions\
**Created:** [11 December 2023 22:38 UTC](https://forum.core-electronics.com.au/t/stand-alone-raspberry-pi-bluetooth-audio-streamer-dolby-dts-decoder-dac-for-stereo-amplifiers/18764 "2023-12-11T22:38:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Steve252948](https://avatars.discourse-cdn.com/v4/letter/s/7ba0ec/32.png) [@Steve252948](https://forum.core-electronics.com.au/u/Steve252948)\
**Post date:** [11 December 2023 22:38 UTC](https://forum.core-electronics.com.au/t/stand-alone-raspberry-pi-bluetooth-audio-streamer-dolby-dts-decoder-dac-for-stereo-amplifiers/18764/1 "2023-12-11T22:38:19Z")

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Hi, I have a question about the DFRobot DAC Audio Decoder Board for Raspberry Pi 3B+/ 4B  
SKU: DFR0941. It replaces the DFRobot Expansion Shield x600 for Raspberry Pi B+/2B/3B/4B (Discontinued) SKU:DFR0450, which could decode and playback Dolby and DTS formats through analogue RCA stereo outputs. Can this do the same using a Raspberry Pi. My plan is to share a project where I build a hifi stereo valve amplifier (already in progress), and add a stand alone Raspberry Pi Bluetooth, Digital Service Audio Streamer, and Dolby/DTS decoder DAC, with touch screen interface to the amp. Any stereo amp really, a nice way to recycle old amplifiers for modern applications. Possibly adding a remote control, or smart phone connectivity.

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**Author:** ![James](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/james/32/4400_2.png) [@James](https://forum.core-electronics.com.au/u/James)\
**Post date:** [12 December 2023 01:09 UTC](https://forum.core-electronics.com.au/t/stand-alone-raspberry-pi-bluetooth-audio-streamer-dolby-dts-decoder-dac-for-stereo-amplifiers/18764/2 "2023-12-12T01:09:15Z")

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> [@Steve252948](#):
>
> DFR0941

That DAC chip seems to only support PCM audio, so you’d have to rely on software on the Pi to do this, like Kodi or the like.

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**Author:** ![Steve252948](https://avatars.discourse-cdn.com/v4/letter/s/7ba0ec/32.png) [@Steve252948](https://forum.core-electronics.com.au/u/Steve252948)\
**Post date:** [3 March 2024 21:33 UTC](https://forum.core-electronics.com.au/t/stand-alone-raspberry-pi-bluetooth-audio-streamer-dolby-dts-decoder-dac-for-stereo-amplifiers/18764/3 "2024-03-03T21:33:35Z")

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Update on this project.

I’m using the [DAC Audio Decoder Board for Raspberry Pi 3B+/ 4B | DFRobot DFR0941 | Core Electronics Australia](https://core-electronics.com.au/dac-audio-decoder-board-for-raspberry-pi-3b-4b.html) as an internet radio streamer, and Bluetooth interface via a [Pi Zero 2W](https://core-electronics.com.au/raspberry-pi-zero-2-w-wireless.html). It must be noted that while the Pi Zero 2W does have Bluetooth, it does share that antenna with the wifi I believe. As a result the Bluetooth wasn’t working, until I plugged in Core’s [Micro USB OTG Host Cable (for Raspberry Pi Zero) SKU: CE04761](https://core-electronics.com.au/micro-usb-otg-host-cable-for-raspberry-pi-zero.html). It acts as an antenna and provides a nice usable range. I settled in the end for Rune Audio’s OS, because of it’s nice UI and mobile app.  
dtoverlay=hifiberry-dac  
To be set up is network storage via my existing router. I’ll use a separate Dolby/DTS decoder on another amplifier input for 2 channel decoding, the Dynalink 5.1CH Digital Audio Converter looks to me to have the best overall combination of specs and features.

 ![IMG_20240304_082923361](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/9/918ad6297f069f9277c629d57a80fdfaaa50d52e.jpeg)  
The Pi Zero 2W is underneath, and I fitted a [Aluminium Heatsink for Raspberry Pi Zero Series | Waveshare | Core Electronics Australia](https://core-electronics.com.au/dedicated-aluminum-heatsink-for-raspberry-pi-zero-series-zero-zero-2-w-1.html) onto it as well, though mainly for peace of mind.
