User manual M-AUDIO SESSION KEYSTUDIO 25 KEYSTUDIO 25 • QUICK START GUIDE

[. . . ] During the installation process, you will be asked if you would like to install the Session Content on your hard drive. If you do not have 4 GB of disk space available, you may choose not to install the Session Content, but you will then have to place the Session DVD in your DVD-ROM drive whenever you run Session. Accessing Session's content via DVD-ROM results in slightly slower computer performance. If the required hard drive space is available, installing the Session Content on your computer's hard drive is recommended. [. . . ] Go to Options > MIDI Hardware and make sure "USB Audio Device, " "USB O2, " or "USB O2 In" is selected in the Input Port box. KeyStudio will appear as "USB Audio Device" in Windows XP and "USB O2" in Windows Vista if additional drivers have not been installed. If the optional drivers are installed, KeyStudio will appear as "USB O2 In. " Click OK. Figure A: Session MIDI Hardware dialog window without optional drivers installed in Windows XP. Figure B: Session MIDI Hardware dialog window without optional drivers installed in Windows Vista. 12. You should now be able to use your KeyStudio keyboard to play instruments from the Session instrument library. Session KeyStudio 25 Quick Start Guide 5 More Information on Configuring Session To play back and record audio in Session, Session must communicate with your sound card. On first launch, Session attempts to choose the first sound card containing both an audio input and audio output, effectively making this connection automatically. If Session is not able to select audio inputs and outputs automatically, it will open the Audio Hardware dialog. If the process is successful (Session does not open the Audio Hardware dialog automatically), but you cannot play back or record audio with Session, you'll need to open the Audio Hardware dialog by choosing Options>Audio Hardware. English The Audio Hardware dialog contains the following options: ASIO/WDM Switch This control switches the Audio Hardware dialog of Session between ASIO and WDM mode. For best performance in Session, use ASIO mode. Consult the documentation for your sound card to determine if it supports ASIO. Output and Input Device Selectors These controls set the Output Device (sound card) through which Session plays audio, and the Input Device (sound card) from which Session records audio. It is recommended that you select the same sound card for audio input and output. Buffer Size Selector This control sets the latency of Session. See the "About Latency" section found later in this guide for additional information. Use Low Latency Streaming Checkbox When checked, Session attempts to open the selected audio interface in low latency mode (WDM Kernel Streaming). While most sound cards should "open" in this mode, results vary widely based on the sound card in use. See the "About Latency" section of this Quick Start Guide for further information on this. 6 Session KeyStudio 25 Quick Start Guide OK Button After making the desired settings, press the OK button to commit your changes and close the Audio Hardware dialog. Cancel Button Press the Cancel button to discard your changes and close the Audio Hardware dialog. About Latency Latency is loosely defined as the amount of time it takes for a sound made in Session to reach your speakers. For example, with a high latency (Buffer Size) setting, there will be a noticeable delay between the press of a key on KeyStudio 25, and the resultant sound. Smaller Buffer Size settings result in lower latency, but may not function well with slower systems. If you hear clicks and pops, the Buffer Size setting is too low. To adjust this setting of Session, open the Audio Hardware dialog (Options > Audio Hardware), select the desired buffer size from the Buffer Size selector, and then click the OK button. [. . . ] Warranty Registration Immediately registering your new M-Audio product entitles you to full warranty coverage and helps M-Audio develop and manufacture the finest quality products available. Register online at www. m-audio. com/register to receive FREE product updates and for the chance to win M-Audio giveaways. ESD and Fast Transient may cause the unit to temporarily malfunction. Switch off and on again to restore normal operation. WARNING: This product contains chemicals, including lead, known to the State of California to cause cancer, and birth defects or other reproductive harm. [. . . ]