![RME HDSPe AIO [21/81] Notes on wdm](/img/pdf.png)
RME HDSPe AIO [21/81] Notes on wdm
![RME HDSPe AIO [21/81] Notes on wdm](/views2/2009490/page21/bg15.png)
User's Guide HDSPe AIO © RME
21
Multichannel
PowerDVD can also operate as software decoder, sending a DVD's multichannel data stream
directly to the analog outputs of the HDSPe AIO. Supported are all modes, from 2 to 8 chan-
nels, at 16 bit resolution and 48 kHz sample rate. Playback via the ADAT output of the HDSPe
AIO is also supported.
For this to work the option Interleaved has to be activated in the Settings dialog, an output wave
device of the HDSP has to be selected in >Control Panel/ Sounds and Audio Devices/ Audio<,
and 'Use only default devices' has to be checked. Additionally the loudspeaker setup, found
under >Volume/ Speaker Settings/ Advanced< has to be changed from Stereo to 5.1 Surround.
PowerDVD's and Win DVD's audio properties now lists several multichannel modes. If one of
these is selected, the software sends the decoded analog multichannel data to the HDSP.
The device selected as Default Sound playback device defines the first playback channel. Note
that this device can not be chosen freely. An interleaved playback with more than 2 channels
can only be done in blocks of eight channels. The first device is channel 1+2 in case an AO4S-
192 is present (8 analog outputs). Else it is ADAT 1+2.
The typical channel assignment for surround playback is:
1 (first chosen playback channel) - Left
2 - Right
3 - Center
4 - LFE (Low Frequency Effects)
5 - SL (Surround Left)
6 - SR (Surround Right)
Note 1
: Setting the card to be used as system playback device is against common sense, as
professional cards are not specialized to play back system sounds, and shouldn't be disturbed
by system events. To prevent this, be sure to re-assign this setting after usage, or to disable
any system sounds (tab Sounds, scheme 'No audio').
Note 2
: The DVD player will be synced backwards from the HDSPe card. So when using Auto-
Sync and/or word clock, the playback speed and pitch follows the incoming clock signal.
12.3 Notes on WDM
The driver offers a WDM streaming device per stereo pair, like AIO Analog (1+2). WDM
streaming is Microsoft's current driver and audio system, directly embedded into the operating
system. WDM streaming is nearly unusable for professional music purposes, as all data is proc-
essed by the so called Kernel Mixer, causing a latency of at least 30 ms. Additionally, WDM can
perform sample rate conversions unnoticed, cause offsets between record and playback data,
block channels unintentionally and much more. Therefore, for general operation, RME recom-
mend not to use WDM devices.
WDM streaming also replaces the former DirectSound. Synthesizers and Samplers, which
achieved latencies below 10 ms using DirectSound, are forced to use WDM in Windows XP,
now operating at high latency. Meanwhile most of these programs support ASIO as low latency
driver interface.
Several programs do not offer any direct device selection. Instead they use the playback device
selected in Windows under <Control Panel/ Sounds and Multimedia/ Audio>. Such software
often requires the special functions provided by WDM, and therefore will operate better when
using a WDM device. Please note that selecting the HDSPe to be used as system playback
device is against our recommendations, as professional interfaces should not be disturbed by
system events.
Содержание
- Dsp system hdspe aio 1
- Hammerfal 1
- User s guide 1
- Driver installation and operation windows 2
- General 2
- Connections and totalmix 3
- Driver installation and operation mac os x 3
- Technical reference 4
- General 5
- Hdspe aio 5
- User s guide 5
- Brief description and characteristics 6
- Introduction 6
- Package contents 6
- System requirements 6
- External connectors 7
- Hardware connectors 7
- Hardware installation 7
- Internal connectors 8
- Accessories 9
- Warranty 9
- Appendix 10
- Ce fcc compliance 11
- Iso 9001 11
- Note on disposal 11
- Driver installation and operation windows 13
- Hdspe aio 13
- User s guide 13
- Deinstalling the drivers 14
- Driver and firmware 14
- Driver installation 14
- Driver update 14
- Configuring the hdspe aio 15
- Firmware update 15
- Settings dialog 15
- Settings dialog dds 17
- Clock modes synchronisation 18
- Dvd playback ac 3 dts under mme 20
- Operation and usage 20
- Playback 20
- Notes on wdm 21
- Channel count under wdm 22
- Multi client operation 23
- Analog recording 24
- Digital recording 24
- Channel count under asio 25
- General 25
- Operation under asio 2 25
- Known problems 26
- Operation under gsif gigasampler interface 26
- Windows 2000 xp 26
- Digicheck 27
- Using more than one hdspe aio 27
- General 28
- Hotline troubleshooting 28
- Installation 29
- Driver installation and operation mac os x 31
- Hdspe aio 31
- User s guide 31
- Driver and flash update 32
- Driver installation 32
- Driver update 32
- Flash update 32
- Configuring the hdspe aio 33
- Settings dialog 33
- Settings dialog dds 34
- Clock modes synchronisation 35
- Mac os x faq 37
- Midi doesn t work 37
- Round about driver installation 37
- Channel count under coreaudio 38
- Repairing disk permissions 38
- Supported sample rates 38
- Hotline troubleshooting 39
- Various information 39
- Connections and totalmix 41
- Hdspe aio 41
- User s guide 41
- Analog connections 42
- Line inputs 42
- Headphones 43
- Line outputs 43
- Aes ebu 44
- Digital connections 44
- Overview 46
- Totalmix routing and monitoring 46
- The user interface 48
- Elements of a channel 49
- Tour de totalmix 49
- Mute und solo 51
- Submix view 51
- Presets 52
- The quick access panel 52
- Preferences 54
- The monitor panel 54
- Editing the names 55
- Hotkeys 56
- Menu options 57
- Level meter 58
- Elements of the matrix view 59
- Operation 59
- Overview 59
- Totalmix the matrix 59
- Advantages of the matrix 60
- Asio direct monitoring windows only 60
- Totalmix super features 60
- Copy routings to other channels 61
- Delete routings 61
- Selection and group based operation 61
- Recording a subgroup loopback 62
- Using external effects devices 63
- Ms processing 64
- Mapping 65
- Overview 65
- Totalmix midi remote control 65
- Operation 66
- Simple midi control 67
- Loopback detection 68
- Hdspe aio 69
- Technical reference 69
- User s guide 69
- Tech info 70
- Analog 71
- Technical specifications 71
- Digital inputs 72
- Digital outputs 72
- Digital 73
- Lock and synccheck 74
- Technical background 74
- Latency and monitoring 75
- Ds double speed 76
- Aes ebu spdif 77
- Qs quad speed 77
- Noise level in ds qs mode 78
- Steadyclock 78
- Block diagram hdspe aio 79
- Diagrams 79
- Connector pinouts 80
- Overview channels expansion boards 81
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