When you set inputs and outputs for recording and playback in Adobe Audition 3, you have a choice of sound card drivers: an ASIO (Audio Stream In/Out) driver, or the Audition 3.0 Windows Sound driver.

• Digigram Sound Cards & Media Devices Driver
• Digigram Sound Cards & Media Devices Drivers

This document describes how to select a driver and how to configure each kind of driver.

Digigram (www.digigram.com) digital audio solutions are key to the success of public address and pro sound installations, as well as broadcast and media production companies worldwide. We develop innovative networked audio devices, computer sound cards, and audio management software. Digigram wave driver for VX version 2.20 or higher (PC) Digigram driver for Sound Manager version 2.0 or higher (Mac) HARDWARE INSTALLATION Check for a free PC Card slot and firmly press the card into the slot. Interrupt request IRQ number is set up at start-up by the PnPBios. Be sure there is one IRQ ressource available.

Audition 3.0 Windows Sound is the default driver, but Adobe recommends that you select an ASIO driver.

ASIO is a multichannel protocol that allows compatible software to use the multichannel capabilities of ASIO-compliant sound cards.

The benefits of ASIO include:

• Lower signal latency.
• More efficient audio processing.
• Higher data throughput.
• More accurate channel synchronization.
• Better extensibility of audio hardware.
• Greater flexibility of sample rates, sample formats, and input/output channel mapping for playback and recording.
• The ability to record from two or more inputs simultaneously.
  

Digigram Sound Cards & Media Devices Driver

If you are using an ASIO-compliant audio device, then you should download and install an ASIO driver that is specifically designed for that device.

Digigram Sound Cards & Media Devices Drivers

If the device manufacturer does not provide an ASIO driver, then you can install a third-party ASIO driver, such as ASIO4ALL; however, a third-party driver may not support all of the device's features.

If you are not able to obtain an ASIO driver, or if you are not using ASIO-compliant audio devices, then use the Audition 3.0 Windows Sound driver.

Audition 3.0 Windows Sound is an emulated driver which uses the system DirectSound driver.

Audition 3.0 Windows Sound provides no additional device functionality beyond what the DirectSound driver offers. For example, the DirectSound driver may be limited to stereo input and output.

Click the Edit View, Multitrack View, or Surround Encoder tab.
Note: The Edit View, Multitrack View, and Surround Encoder each have their own driver settings. You must configure driver settings for each view individually.


In the Audio Driver pop-up menu, choose a driver for the sound card you wish to use.


Choose an ASIO driver if one is listed; otherwise, choose Audition 3.0 Windows Sound.

If you chose an ASIO driver in Step 3, then go to Configuring an ASIO driver.

If you chose Audition 3.0 Windows Sound in Step 3, then go to Configuring the Audition 3.0 Windows Sound driver.

The window that appears after you click Control Panel displays the proprietary settings of the ASIO driver that you selected. These setting vary from driver to driver.

For details about these settings, see your sound card's documentation, contact the cardâs manufacturer, or contact the publisher of the driver.

You will configure the Audition 3.0 Windows Sound driver in the DirectSound Full Duplex Setup window. The options in this window are as follows:

• Device Name

  The Device Name column lists all available DirectSound outputs and inputs. To activate or deactivate a port, click the box next to the port. If the option box contains an 'X', then the port is activated.

• Buffer Size [Samples]

  The Buffer Size [Samples] column displays the number of samples that will be included in the buffer. The audio buffer is used when audio data is transferred between Audition and the sound card. The default Buffer Size is 2048 samples.

  A large buffer ensures that playback occurs without audio dropout or other glitches. However, increasing the buffer size increases the audio data latency which may cause delay between the moment Audition begins sending audio data and the moment it actually reaches the physical output. In general, lowering the buffer size improves playback while increasing it will improve recording, but the goal of setting the buffer should be to find a balance between the two.

  To change the Buffer Size [Samples] value, double-click the field and enter a different number of samples.

  Note the following Buffer Size guidelines:

  • To improve recording performance, lower the buffer size (optimal range is 32 to 256 samples).
  • To improve playback performance, increase the buffer size (optimal range is 512 to 2048 samples).
• Offset [Samples]

  The Offset [Samples] value affects latency of the input or output signal between multiple sound cards.

  To change the Offset [Samples] value, double-click the field and enter a different number of samples.

• Audio Channels, Bits per Sample

  The Audio Channels and Bits per Sample columns provide information about your sound card. The values in these columns cannot be adjusted using the DirectSound Full Duplex Setup. See the documentation for your sound card for more information on how to change these settings.

• Sync Reference

  The Sync Reference setting specifies which sound card clock is used as a reference when you activate multiple sound cards. The sound card in the topmost position is used as the Sync Reference. The DirectSound Output option is selected as the default Sync Reference.

  

  Note: Use Sync Reference to synchronize two or more digital audio devices for sample-accurate recording.

• Port Order

  The Port Order section allows you to click Move Up or Move Down to move the selected sound device up or down in the input/output port order. The active port (indicated by an 'X' next to the device name) should be first in the list of the available ports.

• Card Options

  The Card Options section displays these two options:

  • Full Duplex: Allows recording (input) and playback (output) to occur simultaneously. If the selected sound card supports Full Duplex, the option should appear as activated.
  • Start Input First: Specifies that the input port is initiated first for any audio hardware procedure. If the sound card doesn't seem to work correctly with Full Duplex activated (for example, you cannot play back and record at the same time), try activating this option before deactivating Full Duplex.

Digigram has upgraded its VX442 multichannel sound card by making it 3.3V-PCI bus compatible and started an Open Source Linux driver project.

The upgraded VX442 can now be used in Apple’s PowerMac G5 and its PCI-X architecture. Existing VX442 owners can upgrade their cards free of charge (only shipping charges apply) through Digigram’s special update program.

Digigram’s Open Source Linux driver project for the VX442 is part of the companies’ strategy to make its professional sound cards available to the Linux community. The drivers follow the most advanced audio standard for Linux called ALSA (Advanced Linux Sound Architecture) and are available for download at www.alsa-project.org.

The VX442 offers 4/4 balanced line inputs/outputs, 96kHz 24-bit converters, low-latency architecture and an additional stereo AES/EBU input/output.

The VX442 supports Windows and Mac platforms (98, ME, 2000, XP, Mac OS up to 10.3) with a set of appropriate drivers (DirectSound, .WAV, ASIO-2, GSIF, EASI for Windows, and SoundManager, ASIO-2, CoreAudio for Mac OS). A comprehensive and intelligent control panel provides easy routing and digital mixing of inputs and outputs.

For more information, visit www.digigram.com/products/getinfo.htm?prod_key=11750.

In other company news, Digigram has released a new driver set, Version 2.00g, for its miXart 8 range of multichannel sound cards, which includes miXart 8, miXart 8 AES/EBU and miXart 8 CN. The driver set features an ASIO driver in addition to the existing WAVE and Digigram np drivers; an Open Source Linux driver project for this range of sound cards was launched in September 2003.

The miXart 8 combines Digigram’s onboard processing with comprehensive audio mixing functions. Pro audio apps that require multiple I/Os to distribute, record, route and mix can use miXart’s 8/8 analog mono I/Os, including four mic preamps with phantom power supply.

The miXart 8 AES/EBU features 4/4 additional stereo AES/EBU I/Os, and, due to its synchronization capabilities, can be used to integrate audio with video systems.

The miXart 8 CN offers a CobraNet interface, providing eight channels of CobraNet input and eight channels of CobraNet output, which operate independently of the analog I/Os.

For more information on miXart 8, miXart 8 AES/EBU or mixArt 8 CN, visit www.digigram.com/products/getinfo.htm?prod_key=9400, www.digigram.com/products/getinfo.htm?prod_key=11600 or www.digigram.com/products/getinfo.htm?prod_key=11000, respectively. For more new product information, visit mixonline.com/products_new_products/.