In the December 1999 issue, we published a design for a digital extension for the Sound Blaster Live! Value Player (circuit board #990079-1). This sound card has a 12-pin Audio Extension connector. The successor to this card is the Live! Player 1024, which has a 40-pin connector that includes the same inputs and outputs (plus others), but in different positions. To allow the extension to be used with the new sound card as well, we have developed an adapter card that makes the connections easy. The necessary signals from the 40-pin connector are passed through to a 14-pin connector whose pin assignments match those of the extension card.
The accompanying table describes the available inputs and outputs on the 40 pins (see also the help menu of the software for the new sound card). The 40-pin connector has two inputs, one of which can be selected using JP1. Apparently, only the first of these inputs is supported in the SB Live! Ware 3.0 software.
With regard to the four outputs, output 0 provides the S/PDIF signal for normal two-channel information. The other outputs also provide signals when (for example) AC3-encoded DVDs (5.1-channel Dolby Digital) are played back if this is supported by the hardware/software player. In this case, output 1 provides a non-decoded data stream. As an extra feature, the I2S inputs can also be connected through to the ten-pin connector K3, but it appears that this is not supported by Live! Ware 3.0 for the 1024 card. JP2 can be used to select which of the three data inputs is connected to K3, but we have not been able to determine what if any benefit this may provide.