Lexicon PCM92 manual Clock Rate, Analog Setup, AES Setup

Clock Rate

Select your clock rate here, when the wordclock source is set to INTERNAL. Choose from 44.1HKz, 48KHz, 88.2KHz, or 96KHz.

Analog Setup

The Analog Setup sub-menu lets you adjust the following parameters:

Analog Input Level - Increases or decreases the incoming analog signal before it reaches the processor(s). Set to +4dBU or –10dBU.

Analog Output Level - Increases or decreases the outgoing analog signal after it leaves the processor(s). Set to +4dBU or –10dBU.

Analog Type IVTM - Enable or disable the Type IV conversion system here. The dbx® Type IV Conversion System is a proprietary analog- to-digital (A/D) conversion process that combines the best attributes of digital conversion and analog recording processes to preserve the essence of the analog signal when it is converted to a digital format.

Global Mute - Mutes all signals from the PCM92. Set to Muted or Unmuted.

AES Setup

The AES Setup sub-menu gives you the status of the following AES infor- mation:

Data Validity - “Valid” indicates the data is OK. “Invalid” indicates that the Validity bit was set in a frame of incoming data and that the data attached to it may be corrupted. This bit may also be sent when the transmitting device is paused.

Mode - Select “Consumer” to send information in S/PDIF format. Select “Professional” to send information in AES format.

Confidence Error - “0” indicates no problem. “1” indicates the PCM92 is detecting excessive jitter or noise on the digital audio line. No data has been corrupted, but corrective action should be taken.

Sample Slip - An unchanging number indicates you are not slipping samples. An increasing number indicates samples are misaligned with the window defined by the Input Source. This may occur when an external master changes sample rate, or when it is just powering up, but should not occur in normal operation.

Bi-Phase Error - “0” indicates no problem. “1” indicates that at least one bit (and therefore at least one audio sample) was corrupted.

CRC Error - “0” indicates no problem. “1” indicates a Cyclic Redundancy Check error in the incoming data.

Parity Error - “0” indicates no problem. “1” indicates that at least one bit (and therefore at least one audio sample) was corrupted.

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