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Author Topic: logic 4.5 updates windows engine, adds ASIO & DirectIO support (Oct 2000)  (Read 1791 times)

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Offline chrisNova777

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Paul White evaluates the latest Logic Audio update and discovers that as well as a host of new features, Windows users also get a brand-new audio engine.

The really gratifying thing about sequencing software is that it is constantly evolving to include new features or better implementation of existing facilities, usually at little or no cost to the user. Emagic's Logic Audio 4.5 is the latest incarnation of a popular, high-quality piece of MIDI + Audio sequencing software and, as usual, the upgrade includes a number of major features plus a far greater number of minor tweaks and bug fixes, and some general tidying up. In this instance, the biggies are the ability to produce surround mixes in a number of formats, plus the addition of live input channels enabling any source to be fed into the mix alongside the existing recorded audio tracks. This latter addition is long overdue.

Windows users may also be pleased to hear that the audio engine has been rewritten to bring it more up-to-date compared with its Mac counterpart, while the Mac version now fully supports the Emagic EASI driver protocol (in effect, Emagic's answer to ASIO). The new Windows audio engine means shorter latency times, faster fader response, improved VST support and an overall improvement in performance. However, the previous Windows audio engine included a number of workarounds needed to get around some third-party incompatibility issues and Emagic say that these couldn't all be implemented in the new engine. This means that it is possible that some soundcards and/or drivers may now be incompatible, in which cases users will have to stick to a pre-4.5 version of Logic Audio or change their soundcard or drivers. Anyone in this situation can send an email direct to support@emagic.de with the subject New Windows Engine. Include a complete description of the problem, including which audio hardware and drivers were used and the Emagic tech support guys will try to come up with an answer.

Windows Hardware Support    
     Previous Logic Audio versions for Windows supported four categories of hardware: PC AV, Roland VS-series digital recorders, Yamaha DS2416 DSP Factory and Audiowerk cards. PC AV included EASI, ASIO, MME and DirectSound drivers, and the DS2416 was handled via an MME driver in PC AV. With Logic Audio for Windows 4.5, this list has been extended to include Direct I/O and ASIO.

The PC AV driver communicates with the audio hardware using EASI and there are now two dedicated drivers called EASI MME and EASI DS. These replace the former MME and DirectSound drivers. Soundcards that have only an MME driver can be used via Logic Audio's EASI MME driver. There are separate drivers for Audiowerk, Direct I/O and ASIO as well as a dedicated driver for the Roland VS880, VS880 EX and VS1680. Direct connection to Digidesign hardware supports Audiomedia III and Digi 001. In order to directly access Digidesign hardware using the Direct I/O interface, a Direct I/O driver has to be installed (for example Wave Driver version 1.6 or higher).

Yamaha's DSP Factory is now supported via the ASIO driver -- the PC AV driver for the DSP factory no longer works. With the ASIO DSP Factory driver, though, it's possible to use virtual instrument plug-ins with the DSP Factory.

system requirements:

System Requirements Windows

    Pentium 200
    Windows 98
    64 MB RAM
    MME compatible sound card


    Pentium II
    128 MB RAM
    Hard disk for audio files only
    Digital audio card
    MIDI interface


System Requirements Mac

    Power Macintosh (120 MHz or better)
    System 7.6.1 (or newer)
    64 MB RAM


    G3 processor
    128 MB RAM
    Hard disk for audio files only
    Digital audio card
    MIDI interface


System Requirements Hard Disk

    Transfer rate >3 MB/s
    Average access time <10 ms
    Sufficient capacity (approx. 5 MB/track minute)
    With IDE-drives the CD-ROM drive should use the other channel
    UW-SCSI-Controller suggested for external hard drives
« Last Edit: April 10, 2015, 10:20:33 AM by chrisNova777 »