Hammerfall® DSP System HDSP 9632 - RME

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Via Pref. Sync Ref (preferred synchronization reference) a preferred input can be defined. As long as the card sees a valid signal there, this input will be designated as the sync source, otherwise the other inputs will be scanned in turn. If none of the inputs are receiving a valid signal, the card automatically switches clock mode to ‘Master’. To cope with some situations which may arise in studio practice, setting ‘Pref Sync Ref’ is essential. One example: An ADAT recorder is connected to the ADAT input (ADAT immediately becomes the sync source) and a CD player is connected to the SPDIF input. Try recording a few samples from the CD and you will be disappointed. Few CD players can be synchronized. The samples will inevitably be corrupted, because the signal from the CD player is read with the (wrong) clock from the ADAT i.e. out of sync. In this case, 'Pref Sync Ref' should be temporarily set to SPDIF. If several digital devices are to be used simultaneously in a system, they not only have to operate with the same sample frequency but also be synchronous with each other. This is why digital systems always need a single device defined as ‘master’, which sends the same clock signal to all the other (‘slave’) devices. RME’s exclusive SyncCheck technology (first implemented in the Hammerfall) enables an easy to use check and display of the current clock status. The ‘SyncCheck’ field indicates whether no signal (‘No Lock’), a valid signal (‘Lock’) or a valid and synchronous signal (‘Sync’) is present at each of the digital clock source inputs. The ‘AutoSync Ref’ display shows the current sync source and the measured frequency. In practice, SyncCheck provides the user with an easy way of checking whether all digital devices connected to the system are properly configured. With SyncCheck, finally anyone can master this common source of error, previously one of the most complex issues in the digital studio world. Thanks to its AutoSync technique and lightning fast PLLs, the HDSP is not only capable of handling standard frequencies, but also any sample rate between 28 and 200 kHz. Even the word clock input, which most users will use in varispeed operation, allows any frequency between 28 kHz and 200 kHz. At 88.2 or 96 kHz: If one of the ADAT inputs has been selected in Pref Sync Ref, the sample frequency shown in the field SPDIF Freq. differs from the one shown in AutoSync Ref. The card automatically switches to S/MUX mode here, because ADAT optical inputs and outputs are only specified up to 48 kHz. Data from/to a single input/output is spread over two channels, the internal frequency stays at 44.1 or 48 kHz. In such cases, the ADAT sample frequency is only half the SPDIF frequency. 18 User's Guide HDSP System HDSP 9632 © RME
12. Operation and Usage 12.1 Playback The HDSP system can play back audio data only in supported modes (channels, PCM) and formats (sample rate, bit resolution). Otherwise an error message appears (for example at 22 kHz and 8 bit). In the audio application being used, HDSP must be selected as output device. This can often be found in the Options, Preferences or Settings menus under Playback Device, Audio Devices, Audio etc. We strongly recommend switching off all system sounds (via >Control Panel /SoundsControl Panel /Multimedia /Audio
Page 1 and 2: User's Guide Hammerfall ® DSP Syst
Page 3 and 4: Driver Installation and Operation -
Page 5 and 6: User's Guide HDSP 9632 General User
Page 7 and 8: 5. Hardware Installation Before ins
Page 9 and 10: 7. Accessories RME offers several o
Page 11 and 12: User's Guide HDSP 9632 Driver Insta
Page 13 and 14: 10.4 Firmware Update The Flash Upda
Page 15 and 16: Pref. Sync Ref. Used to pre-select
Page 17: Application examples DDS allows for
Page 21 and 22: 12.3 Low Latency under MME (Buffer
Page 23 and 24: 12.6 Analog Recording For recording
Page 25 and 26: 15. Using more than one Hammerfall
Page 27 and 28: 17.2 Installation Hammerfall DSP is
Page 29 and 30: 18.2 Channel Routing MME at 96 kHz
Page 31 and 32: User's Guide HDSP 9632 Driver Insta
Page 33 and 34: 20. Configuring the HDSP 9632 20.1
Page 35 and 36: 20.2 Settings dialog - DDS Usually
Page 37 and 38: If several digital devices are to b
Page 39 and 40: 21.3 Supported Sample Rates RME's M
Page 41 and 42: 23. Diagram: Channel Routing at 96
Page 43 and 44: User's Guide HDSP 9632 Connections
Page 45 and 46: 24.2 Line Outputs The short circuit
Page 47 and 48: Note: Recordings with (pre-) emphas
Page 49 and 50: 26.2 Technical Description and Usag
Page 51 and 52: 27. TotalMix: Routing and Monitorin
Page 53 and 54: 27.2 The User Interface The visual
Page 55 and 56: As shown it is very easy to set up
Page 57 and 58: 27.7 The Quick Access Panel This se
Page 59 and 60: 27.9 The Monitor Panel The Monitor
Page 61 and 62: 27.12 Hotkeys In many situations To
Page 63 and 64: 27.14 Level Meter The HDSP 9632 cal
Page 65 and 66: 28.4 Advantages of the Matrix The M
Page 67 and 68: 29.5 Recording a Subgroup (Loopback
Page 69 and 70:
Unfortunately, very often it is not
Page 71 and 72:
30.5 Simple MIDI Control The stereo
Page 73 and 74:
User's Guide HDSP 9632 Technical Re
Page 75 and 76:
32. Technical Specifications 32.1 A
Page 77 and 78:
Word Clock • 2 x BNC, separated d
Page 79 and 80:
33.2 Latency and Monitoring The ter
Page 81 and 82:
33.4 QS - Quad Speed Due to the sma
Page 83 and 84:
34. Diagrams 34.1 Block Diagram HDS
Page 85:
34.3 Overview Channels / Expansion
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Hammerfall® DSP System HDSP 9632 - RME

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