MOTU Audio Express Guide de l'utilisateur Page 45
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- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
CHAPTER
45
9 Reducing Monitoring Latency
OVERVIEW
Monitoring latency is that slight delay you hear
when you run an input signal through your host
audio software. For example, you might hear it
when you drive a live mic input signal through an
amp modeling plug-in running in your audio
sequencer.
This delay is caused by the amount of time it takes
for audio to make the entire round trip through
your computer, from when it first enters an Audio
Express input, passes through the Audio Express
hardware into the computer, through your host
audio software, and then back out to an Audio
Express output.
If you don’t need to process a live input with
plug-ins, the easiest way to avoid monitoring
latency is to use the Audio Express’s CueMix digital
mixer to patch the input directly to your monitor
outs via the Audio Express audio hardware. For
details, see “CueMix hardware monitoring” on
page 48.
If you do need to process a live input with plug-ins,
or if you are playing virtual instruments live
through your Audio Express audio hardware, you
can significantly reduce latency — and even make
it completely inaudible, regardless of what host
audio application software you use. This chapter
explains how.
It is important to note that monitoring delay has no
effect on when audio data is recorded to disk or
played back from disk. Actual recording and
playback is extremely precise.
Monitoring live input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Adjusting the audio I/O buffer . . . . . . . . . . . . . . . . . . . . . . . 47
Lower latency versus higher CPU overhead . . . . . . . . . . 48
Transport responsiveness . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Effects processing and automated mixing . . . . . . . . . . . 48
CueMix hardware monitoring. . . . . . . . . . . . . . . . . . . . . . . . 48
Three methods for controlling CueMix . . . . . . . . . . . . . . . 48
Controlling CueMix from the front panel. . . . . . . . . . . . . 49
Using the CueMix FX application. . . . . . . . . . . . . . . . . . . . . 49
Controlling CueMix from your audio software . . . . . . . 49
- Audio Express 1
- Contents 3
- 2 4 5 6 7 8 9 10 5
- How to access these settings 7
- About the Audio Express 9
- Connection Input Output 10
- Total 6 6 10
- THE AUDIO EXPRESS FRONT PANEL 11
- 16-BIT AND 24-BIT RECORDING 11
- CUEMIX MIXING AND EFFECTS 12
- HOST AUDIO SOFTWARE 12
- Requirements 13
- Software Installer First 15
- Installing the Audio Express 17
- Hardware 17
- FireWire 18
- Input 48V Pad Trim 20
- CONNECT MIDI GEAR 21
- POWER OPTIONS 22
- Voltage Amperage 23
- A TYPICAL AUDIO EXPRESS SETUP 24
- MOTU Audio Console 27
- ‘GENERAL’ TAB SETTINGS 28
- MOTU AUDIO CONSOLE 29
- ‘AUDIO EXPRESS’ TAB SETTINGS 30
- Front Panel Operation 31
- MIXING WITH THE FRONT PANEL 32
- CONTROLS 32
- Do this To do this 33
- METERING AND ACTIVITY LEDS 34
- RESTORING FACTORY DEFAULTS 34
- ASIO Software 35
- CHOOSING THE MOTU ASIO DRIVER 37
- SYNCHRONIZATION 39
- MIDI I/O 39
- 24-BIT OPERATION 39
- SONAR and other WDM Software 41
- SONAR AND OTHER WDM SOFTWARE 42
- AND OUTPUTS 43
- Reducing Monitoring Latency 45
- MONITORING LIVE INPUT 46
- CUEMIX HARDWARE MONITORING 48
- REDUCING MONITORING LATENCY 49
- REDUCING MONITORING LATENCY 50
- CueMix FX 51
- CUEMIX FX 52
- WORKING WITH A MIX 53
- SHORTCUTS 54
- INFO DISPLAY 54
- TALKBACK AND LISTENBACK 54
- CUEMIX FX 55
- SCOPE CHANNEL SELECTION 56
- FILE MENU 56
- EDIT MENU 56
- DEVICES MENU 57
- FFT ANALYSIS / SPECTROGRAM 57
- Pause button 58
- Display options 58
- Silence Full scale 58
- OSCILLOSCOPE 59
- moves the line marking time 60
- moves the line 60
- Trigger indicator 61
- Trigger menu 61
- Criteria check boxes 61
- Trigger mode What it does 62
- Color Status 62
- X-Y PLOT 65
- PHASE ANALYSIS 68
- Figure 10-29: Filters 70
- Polar view 71
- Rectangular 71
- Inverted 71
- CONFIGURATIONS MENU 72
- TALKBACK MENU 73
- PHONES MENU 73
- CONTROL SURFACES MENU 73
- MOTU SMPTE Console 75
- READER SECTION 76
- GENERATOR SECTION 77
- SMPTE TIME CODE 77
- SYNCING TO SMPTE TIME CODE 78
- CUSTOMER SUPPORT 80
- REPLACING DISKS 80
- TECHNICAL SUPPORT 80
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