Test, Measurement and Analysis Tool for RME Interfaces
RME interfaces not only provide you with a professional digital audio interface, but also with a unique software tool: DIGICheck, the incredible utility for test, measurement and analysis of the digital audio data stream.
This TECH INFO describes the functions and the technology used in DIGICheck. Please be aware that DIGICheck will work ONLY with cards of RME. This is due to special implementations within the hardware, that aren't available with any other card. RME interfaces are based on RME's own chip design (realized in a FPGA.) Because of this you won't find any other card in the market that gives you a Channel Status display, a 100% accurate 24 bit level meter, a decoding of the CD-subcode, and hardware based RMS calculations.
Technical background: the 32 bit technology
To our knowledge, RME's DIGI96 series was the first audio card ever to allowed the record of the complete 32 bit digital audio data stream. Besides the usual 24 audio bits P, C, U and V bits are also transmitted. That's 28? Right, the first 4 bits form the preamble. This synchronization signal isn't needed anymore after a successful receiving and decoding of the signal. To use the data of the PCUV-bits the start of the block must be known. Therefore the data stream sent to the record program also includes the CBL (channel block start) signal since the intorduction of the DIGI96 series.
Multichannel Level Meter
Besides the 2-channel level display also an 8-channel level display is available. This Multichannel Level Meter uses the same settings options as the 2-channel Level Meter. The bar can be set to display RMS or Peak.
Global Level Meter
DIGICheck's Global Level Meter displayes all available channels of the the interface simultaneously. This function is mainly intended as fast overview
of current configuration and input signals. Channels with invalid input signals will be greyed out.
|
 |
|
