Digilyzer DL1 User Manual

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Consumer Format Format Data coding Sampling frequ. Clock accuracy Category code Copy protection Original fs Measurement Functions Page number Fig 5-04, Channel status consumer, page 1 Page number On page two are the fairly complex category tables, providing simple device statements, such as e.g. LASER OPTICAL PROD or MINI DISC SYSTEM, interpreted into words and letters for easy read out. The original sampling frequency field is used to indicate the fs of the signal prior sampling frequency conversion in a consumer playback format. Page three displays the complete status information as hex code. 30 Status memory Fig 5-05, Channel status consumer, page 2 Channel mode signal emphasis Source number Channel number Word length
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. Measured sampling frequency Wrong sample frequ. status information Measurement Functions Fig 5-06, Channel status consistency check The consistency check is carried out with the following parameters: • Sample frequency • Word length • Clock accuracy • 1C2f usage 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. 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. 31
Page 1 and 2: Digilyzer DL1 User Manual
Page 3 and 4: INdex: 1. In t r o d u c t Io n 4 C
Page 5 and 6: egistration Introduction Register a
Page 7 and 8: Warnings In order to avoid any prob
Page 9 and 10: Functions Overview The Digilyzer fe
Page 11 and 12: • Some functions, e.g. SCOPE, are
Page 13 and 14: Connectors The Digilyzer includes t
Page 15 and 16: 3. FIrsT sTeps This chapter is a qu
Page 17 and 18: 8. Change auto power off time - Mov
Page 19 and 20: Menu Bar The menu bar allows the us
Page 21 and 22: setup screen Basic Operation The se
Page 23 and 24: display Basics Debugging and analyz
Page 25 and 26: Following errors are analyzed/visua
Page 27 and 28: 5. MeAsureMeNT FuNCTIoNs Channel St
Page 29: Row number Measurement Functions Pa
Page 33 and 34: Bit statistic The bit statistic fun
Page 35 and 36: Logger The event logger records any
Page 37 and 38: Displaying events The display of th
Page 39 and 40: vu+ppM The Digilyzer offers a combi
Page 41 and 42: Level Measurement The Level menu fe
Page 43 and 44: Level RMS The analog Level RMS func
Page 45 and 46: Level Sweep The Digilyzer supports
Page 47 and 48: THd+N The THD+N function (Total Har
Page 49 and 50: scope The scope shows the waveform
Page 51 and 52: 7. ACCessorIes MiniLINK MiniLINK al
Page 53 and 54: 8. AppeNdIx 1C2f Format The AES3 st
Page 55 and 56: Logger Event Coding The following c
Page 57 and 58: DL1 event Cs WordLeN Cs CHACHB Cs o
Page 59 and 60: Byte Bit Bit-info Digilyzer Explana
Page 61 and 62: Appendix Consumer Format Coding Ove
Page 63 and 64: Appendix Byte Bit Bit-info Digilyze
Page 65 and 66: Dimensions (L x W x H) 163 x 86 x 4

Digilyzer DL1 User Manual

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