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Locking the Sample Rate in Windows XP 

 
Locking the sample rate can be very important, since Windows will 
frequently try to set the hardware to the highest supported sample rate.  
Then, Windows sample rate converts between that rate and the rate at which 
you are playing or recording.  For instance, you may be trying to play at 44.1 
kHz, but Windows sets the hardware to 96 kHz and converts between the 
two.  This is undesirable because you may be trying to do a digital transfer at 
a specific rate.  In addition, sample rate conversion will reduce your audio 
quality and consume a great deal of CPU power.  Locking the sample rate 
forces Windows to only use the hardware at the locked rate.  In general, we 
recommend you set the sample rate first in your audio application. Then, 
lock that same rate within the console.  Locking the sample rate is not really 
necessary for applications that do not use the legacy wave/MME interface 
(such as SONAR, Cubase, etc.). 
 

Core Audio Sample Rate in Windows Vista 
 

In Windows Vista, the Console displays the current sample rate in the 
“Sample rate” control group as set by your audio software.  In the figure 
above, the sample rate readout is “48 kHz.” 
 
You can also select the sample rate used by Vista Core Audio by clicking on 
one of the sample rate buttons in the “Core Audio sample rate” control 
group. You will see the buttons briefly turn red as Vista resets the sample 
rate. After you change the Core Audio Sample Rate, you may need to go 
into your Sound panel and reset your default audio device. The sample rate 
you have just set will not actually appear in the “Sample rate” control group 
until an audio application begins to play or record. 
 

Note: Setting the sample rate using the “Core Audio sample rate” 
control group does not affect ASIO. 

 

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Содержание Indigo DJx

Страница 1: ...INDIGO IOx INDIGO DJx...

Страница 2: ...Owner s Manual Version 1 0 for Windows XP and Vista 2...

Страница 3: ...and moisture are detrimental to the continued good health of your Echo product Do not install or operate your Echo product near sources of water or moisture such as sinks damp basements leaky roofs et...

Страница 4: ...in advance by the Echo Service Department Unauthorized service repair or modification will void this warranty To obtain factory service Contact Echo Digital Audio Corporation at 805 684 4593 9AM to 4P...

Страница 5: ...k of Echo Digital Audio Corporation Echo IndigoTM is a trademark of Echo Digital Audio Corporation Windows Windows XP and Windows Vista are registered trademarks of Microsoft Inc SONARTM is a trademar...

Страница 6: ...efault Audio Playback Device 12 Professional Audio Software 14 Virtual Outputs 15 Console4 16 Running the Console 16 The System Tray Icon 16 Console Window 17 Bus Select Indigo DJx Only 18 Master Outp...

Страница 7: ...onize Wave Devices 25 GSIF 25 About 25 Hot Keys 26 Listening to Your Indigo ExpressCard 27 Registration 28 Contacting Echo Customer Service 28 Appendix A Multi client Audio FAQ 29 Appendix B An Introd...

Страница 8: ...s Guide Quick Start guide A six foot audio connection cable Spacer for 54 mm ExpressCard slots This should only be used if your IOx or DJx does not fit firmly into your notebook s ExpressCard slot Sy...

Страница 9: ...for Windows XP and Vista Before you can use your Indigo ExpressCard in your notebook computer you will need to install the driver To install the driver just insert the Echo Indigo ExpressCard CD ROM...

Страница 10: ...Downloads Archived_Drivers php Hardware Installation Once the driver is installed turn off your computer Insert your Indigo ExpressCard into your notebook Simply insert the card into any available Exp...

Страница 11: ...t be disabled To do this double click on the Safely Remove Hardware icon in the tray Select Stop from the dialogue box and then OK to confirm You will get a message when it is safe to remove it Failur...

Страница 12: ...the Echo Indigo IOx but apply to the Indigo DJx as well Simply select Start Control Panel and open the Sounds and Audio Devices control panel Then select the Audio tab If you just installed the hardw...

Страница 13: ...an be accessed from the control panel The default sound device has a green check mark next to it To change this right click on the desired default output and choose Set as Default Device Virtual outpu...

Страница 14: ...g your audio recording editing software with the devices assignable on a per track basis See your software owner s manual for details on how to make these device assignments NOTE Some audio software a...

Страница 15: ...d Indigo DJx appear to software as if they have eight separate outputs These are mixed together with the on board DSP to produce the actual or physical outputs that connect to external equipment witho...

Страница 16: ...le Double click on this to launch Alternatively you can find the console under your Start menu under the group Echo Digital Audio The System Tray Icon When you open the console you will see an icon ad...

Страница 17: ...ks in terms of output busses An output bus is a stereo pair of outputs on your hardware For example analog outputs 1 and 2 are an output bus The console window allows you to control what is mixed and...

Страница 18: ...ently controlling everything mixed to analog outputs 3 and 4 The Indigo IOx only has controls for Analog Outputs 1 and 2 The mute buttons and faders affect everything being mixed to this bus Holding d...

Страница 19: ...There is one strip or input monitor corresponding to each of Indigo IOx s two physical analog inputs The controls for the virtual outputs are in the middle of the Console and are labeled Virtual Outpu...

Страница 20: ...t that when the gang button is engaged the pan knobs will mirror each other when turned The virtual outputs are used to control the level of audio being played by an application The Indigo ExpressCard...

Страница 21: ...or Save button at the top of the Console window You can also use Ctrl s to save or quick save if you already have a session loaded and Ctrl o to load To restore the device to its default state click t...

Страница 22: ...g the Settings tab at the top of the Console gives you a dialog box for changing console settings On the Settings tab you will see four control groups Sample rate Core Audio sample rate Sync wave devi...

Страница 23: ...me rate within the console Locking the sample rate is not really necessary for applications that do not use the legacy wave MME interface such as SONAR Cubase etc Core Audio Sample Rate in Windows Vis...

Страница 24: ...Audio sample rate from the Console will cause the current playback and recording devices to be removed and new ones created in their place this ensures that the sample rate is consistent The downside...

Страница 25: ...od reason to turn it off you should leave this switch on Also if you are running multiple applications on one card and you can t get it to work try un checking this box GSIF This window allows you to...

Страница 26: ...ck a fader to set to 0 dB Ctrl click a pan slider to set to center Ctrl click on a mute button to select all or deselect all You can click on the numerical readout below each fader on the console and...

Страница 27: ...he volume knob is the stereo output The volume for the output is set with the volume knob The jack closest to the volume knob is the line level stereo input which is set to a fixed nominal gain of 10...

Страница 28: ...Echo hardware please go to the support area of our website at www echoaudio com and check out the tutorials troubleshooting FAQ s we have there If you can t find a solution to your problem there you m...

Страница 29: ...e catch The catch is this all the apps using the Echo card at the same time must be set at the same sample rate This is a limitation of the hardware Say that you didn t follow this rule in the previou...

Страница 30: ...internal sound card and play them through that Set the preferred device in the Multimedia control panel to the notebook s internal sound device and check Use preferred devices only Q What are the rule...

Страница 31: ...through a digital to analog converter or DAC which converts the numbers back into an analog signal This signal can then be sent to an amplifier and speakers for listening In computers binary numbers...

Страница 32: ...namic range of the device Moving a binary number one space to the left multiplies the value by two so each additional bit doubles the number of possible values that may be represented Each doubling of...

Страница 33: ...increase of 6dB Therefore a signal of 6dB is twice as big as a 0dB signal and a signal of 12dB is four times as big as a 0dB signal Since digital audio signals are represented by binary data each bit...

Страница 34: ...range downward from there A signal that is 30dB below full scale would simply be referred to as a 30dB signal Dynamic Range Dynamic range represents the difference between the maximum signal that can...

Страница 35: ...compressed or amplified after it is recorded and that some headroom is necessary when recording to avoid clipping The only way that 96dB would be adequate is if all music were recorded so that the pe...

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