zarpli
commented
3 years ago Is it worth to try attach raspberry pi to amplifier from HT-THQ25 via i2s (PS9818 datasheet states that it is capable to handle i2s) and control it via SPI?
Yes, it's possible
The full idea is to use 5.1 system with 2.1 mode (unfortunately RPI handles only 2 audio channels over i2s) for Spotify build in client on RPI.
I recommend doing unit experiments, you could start with a Teensy Board that has an excellent audio library. You will be able to do multi-channel testing, although you can use one audio channel and repeat it on the outputs you need using the PS9829B settings.
please share your project :)
bademux
Hi, Thanks for the project, I read description as a good piece of adventure literature! And I suddenly realized that Home Theater HT-THQ25 (with integrated amplifier and dvd) whait for its time :) Looks like Samsung create modular products. Mine consists of 3 boards. Main board, PSU and Amplifier. The interesting part is amplifier it is based on exactly the same PS9829B chip, but it lacks ADC part ( S4560, AK5384 and AK5381). Amplifier is connected to motherboard via 32 pin FPC cable (please see image below).
P-ON is located on PSU board.
Unfortunately my knowledge in electronics is limited, so I want to ask your opinion about my idea: Is it worth to try attach raspberry pi to amplifier from HT-THQ25 via i2s (PS9818 datasheet states that it is capable to handle i2s) and control it via SPI? The full idea is to use 5.1 system with 2.1 mode (unfortunately RPI handles only 2 audio channels over i2s) for Spotify build in client on RPI.