NTi Audio Digilyzer DL1 - Manual (Page 31)

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Consistency Check
The consistency check is constantly running as a background task. It
compares the carrier information with the status information. E.g. the
sampling frequency claims to be 44.1 kHz but in reality is 48.0 kHz.
Such errors are immediately displayed via a flashing square around
the individual status information.
The consistency check is carried out with the following parameters:
• Sample frequency
• Word length
• Clock accuracy
• 1C2f usage
Channel Status Details
Detailed information about the interpretation of each individual bit and
bytes may be found in the normative documents IEC 60958-3 and
AES3. A summary is given in the appendix.
Measurement Functions
Fig 5-06, Channel status consistency check
Wrong sample
frequ. status
information
Measured
sampling
frequency
Application hints:
• Wrong signalization of the sample frequency of digital audio
devices may cause real trouble.
• Some units expected to be e.g. 24 bit devices, signalize 24
bit in the channel status but only send 22 relevant bits. The
consistency check helps to see this problems quick and
easy.