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Old 21st January 2012, 01:54 PM   #1
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Default Pioneer VSX-S300 VSX-S500 multiway hack

Quite silently, Pioneer recently launched the VSX-S300 and VSX-S500 digital A/V amplifiers, multichannel, equipped with four HDMI inputs. The image goes out to the TV set using one HDMI out.

We also have the BOXDH57JG Intel Motherboard : HDMI output, mini-ITX form factor, LGA1156 socket supporting an impressive range of Intel processors.

There are Blu-ray players available on SATA like the Samsung SH-B123L, enabling a PC to operate as Blu-ray player, DVD player, audio CD player, ripper, storage, etc.

Using a proper HDMI driver, the PC can always route the audio to HDMI. It becomes thus tempting to have the PC acting as universal audio/video source, connecting on the Pioneer VSX-S300 using HDMI, with the sound always conveyed using HDMI, decoded inside the Pioneer VSX-S300.

It becomes even more tempting to hack the VSX-S300, tap the front left and front right I2S and SPI streams inside (digital audio and volume) just before the internal DACs, in order to feed a 3-way digital crossover and DACs as "set-top-box".

Could we base on the Elektor DSP56374 board and JTAG programmer for capturing the I2S stream and for generating the three required I2S streams ?

The PC would "see" the DSP56374 board using one USB port. This way, running a dedicated Visual Basic application, the PC could configure the 3-way crossover.

Anyone interested ?
Attached Images
File Type: jpg Poneer VSX-S300.JPG (25.6 KB, 43 views)
File Type: jpg Intel DH57JG.JPG (16.0 KB, 42 views)
File Type: jpg Samsung SH-B123L.JPG (11.6 KB, 40 views)
File Type: jpg Elektor DSP56374 (Alexander Potchinkov).jpg (341.7 KB, 42 views)
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