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S/PDIF (Sony/Philips Digital Interconnect Format)

S/PDIF (Sony/Philips Digital Interconnect Format) is a digital audio interface over copper or optical fiber. It is derived from AES/EBU with simplifications for lower-cost hardware.

Wrong Bit Rate/Frame count/parity/data format settings cause decode or playback issues. For channel-prefix differences, see Settings.

Decode Settings

Decode Settings

S/PDIF Decode Settings
  • Channel: Assign the S/PDIF signal channel.
  • Auto detect Bit Rate: Automatically detect source bit rate (about 384 kb/s–12.288 Mb/s). Field enabled (Enable) when checked; when cleared, select a built-in bit rate. Default is checked.
  • Num of frame: Frames per block, used to order sub-frames and decode User/Channel status bits. Default is 192.
  • Bit Order (Aux. Data): LSB first or MSB first. Default is LSB first.
  • Bit Order (Audio Data): LSB first or MSB first. Default is LSB first.
  • Data format: 16/20/24 bits. Default is 16.
  • Parity mode: Even/Odd/Non parity. Default is Even parity.
  • Playback: Collect sub-frames and play audio after analysis. Field enabled (Enable) when checked. Default is checked.
  • Display the audio waveform: Draw the audio waveform in the Waveform Window. Field enabled (Enable) when checked. Default is unchecked.

Result

S/PDIF Result

S/PDIF decode result

With waveform drawing:

S/PDIF waveform

S/PDIF with audio waveform