Chapter 8 Audio Driver 8.1 Why Audio Drivers? Logic automatically recognizes what audio hardware is available on your computer, and configures itself accordingly. Access to the hardware parameters is carried out using drivers, which are covered in the this chapter.
Chapter 8 Audio Driver Available Drivers ~Any Audio hardware requires an appropriate driver as a communication link to the Logic software. Some of the Drivers support several different types of Audio Hardware. Here is a brief list of the Drivers available. These are described in more detail later: Mac AV The driver for the AV hardware, i.e. the computer’s audio inputs and outputs, is covered in the Installation manual. Please refer to it for the relevant settings in the Sound control panel.
Why Audio Drivers? Lo@ “Direct I/O”. If you use an older PCI card, such as an Audiomedia III or a ProTools System, please be aware that you may control your system with either DAE, or the Direct I/O driver. You’ll find detailed information about DAE in the section DAE on page 8-9, and more about Direct I/O in the section Direct I/O on page 8-38. It’s not possible to use DAE and Direct I/O simultaneously.
Chapter 8 Audio Driver Direct I/O This is the driver for newer Digidesign products like Project II, that can’t be controlled by DAE. Direct I/O may also be used with other Digidesign-PCI-Cards, like Audiomedia III. In comparison to DAE, there are more tracks, there are native Effects and VST-Plug-ins. You also can control a ProTools III Core System and even ProTools 24 (d24) or ProTools 24 MIXSystems via Direct I/O.
Audio Engine 8.2 Audio Engine The features available vary somewhat from driver to driver. The Audio Engine used for Audiowerk, Mac AV, Korg 1212, Direct I/O, Sonorus StudI/O and ASIO offers the most flexibility. This covers the vast majority of available audio hardware: 16 and 24 bit audio files can be played back simultaneously with Logic Audio Platinum. Playback of 24 bit audio files naturally is only possible with 24 bit hardware, and therefore is not possible with the Audiowerk. Windows Wave files (*.
Chapter 8 Audio Driver Common Parameters The drivers mentioned above not only have the audio engine, but therefore also the following parameters in common: Volume Smoothing [ms] This parameter defines the length of the fade between two consecutive volume values for an audio track. When setting this value to 0 you might hear “zipper noise” when moving a volume fader during playback. Higher values soften the volume changes and eliminate the zipper noise. Max.
Audio Engine rates, not only that twice the space on the hard disk will be needed, but also that the Audio Engine will be required to perform twice as fast. Furthermore, you should consider that the improvement in audio quality of 96kHz recordings compared to 44.1 kHz in comparison with the differences between 16 and 24 bit recordings, is little. Many audio engineers consider 44.1 kHz 24-bit recording to be the best balance of sound quality, and efficient use of resources.
Chapter 8 Audio Driver When in doubt - e.g. if you own an older Power Macintosh model but are using a G3 card - experiment. Experiment to find the setting that coaxes the best performance from your system. More friendly Disk Read Handling Activate this setting when using other Audio drivers simultaneously, if you experience playback problems. This gives the other drivers more time for their disk access. The maximum number of audio tracks for this driver may be reduced when this option is enabled.
DAE your tracks have to be switched between DAE/TDM and others, split stereo files should be used. To do so, enable the following switch: Audio > Audio Preferences > Global > Force convert interleaved into split stereo file(s). After changing the Universal Track Mode setting, you have to reboot Logic before the change will take effect. 8.
Chapter 8 Audio Driver You can also check whether there are any communication problems with your hardware-for example if your hardware is not being recognized properly. If you own several pieces of Digidesign hardware, you can select from among them here. Opening the Setup Window You can open the Setup window from within the Audio window by selecting Options > Digidesign Hardware Setup. Select Card Type This is where you select the card whose settings you want to adjust.
DAE can select either 44.1 or 48 kHz This parameter corresponds to the setting in the Audio menu. Sync Mode This is where you select the source for the system’s clock signal (or bit clock-pulses sent out at the sample rate frequency). You have the following options: - Internal The Digidesign hardware’s internal sync signal is used. It runs at the frequency you’ve selected in the Sample Rate box above.
Chapter 8 Audio Driver If you are using an audio interface with more than one pair of digital inputs (e.g. an 888 I/O), you will also be able to select any of the extra input pairs from here.
DAE Session 8 / ProTools Project The first time you start the program with Session 8 or ProTools Project hardware, and DAE Version 2.95 or later, Logic asks which driver mode should be used: Project or Session 8. The Audio > Audio Hardware & Drivers > Use Project Driver Mode for Session 8 System option means you can swap modes later.
Chapter 8 Audio Driver You use this window to set the various Session 8 routing options. For more on these options, please refer to the Session 8 manual. Audio Objects with Session 8 in Internal Mix Mode As with Pro Tools II, additional sends have to be set up individually for each channel. Click on one of the fields under the word Sends. You use the pull-down menu that appears, to set the number of the required send. To the right of this is the control used for setting the aux send level.
CBX Gold version without any disadvantages. Platinum supports TDM system instead. Overviews Session 8 hardware cannot calculate, or display any overviews (the Logic graphic files that represent the waveforms you store) while recording. The overviews are created immediately after recording stops. Once you’ve finished recording, however, the overview calculation is carried out “in the background”, so you can engage other functions while the waveform display is being created-you don’t have to sit and wait.
Chapter 8 Audio Driver happens after booting up LOGIC Audio), the message "Initializing CBX" will appear on the screen. The CBX-D3's sample rate can be calibrated to an external SMPTE signal, or external MTC. Please note that the external clock source should run at the same speed when calibrating, as it will at mixdown The best way to insure this is to calibrate immediately before mixdown. Using a CBX-D3 and -D5 together Please give the CBX-D3 the lower SCSI-ID.
DR 8116 or complete the calculation more quickly by bringing it into the foreground (Finish). If you select this option, you will not be able to perform other tasks while the overview is calculated. Pan CBX-D3 hardware does not have panning facilities. Individual tracks are hardwired to the outputs with the same number as the track.
Chapter 8 Audio Driver This may cause SCSI noise. You can switch off this function under Audio > Audio Hardware & Drivers > Request Levelmeter thru SCSI. The DR has its own disk(s), the contents of which are invisible to the Mac. For this reason, the DR file references are mirrored on the Mac bootdrive in a folder named "(DRFiles)“. This folder is automatically updated to the current state found in the DR everytime Logic Audio Platinum is launched, so you don’t need to be concerned about it.
DR 8/16 Audio window: All DR files used in the Arrange are automatically added and displayed in the Audio window as usual. The Audio window allows all DR Files to be added in one operation, using the menu entry Audio File > Add all DR8/16 Files. New regions can be created, edited and added to the arrange as usual. The DR files can be renamed with the DR limitation of 10 characters. (Note, that sessions created within the DR itself might use these files).
Chapter 8 Audio Driver 8.6 1212 I/O System Requirements You need a PowerMac, or MacOS compatible computer with PCI expansion slots to run a Korg 1212 I/O. Be sure to consult the manufacturer’s documentation to ensure that all equipment is installed and functioning correctly. Please make sure that the System extension "1212 I/O" is in the folder “Extensions ", inside your System folder Please use version 1.1 (or higher). Ask your dealer or Korg distributor an update, if necessary.
1212 I/O De/Reactivating Drivers If you wish to run Logic without the 1212 Extension, or any other audio drivers-in other words, simply as a MIDI program-do the following: Open Audio > Audio Hardware & Drivers Deactivate the check box next to “Korg 1212 I/O”. Quit Logic. The 1212 Extension will be deactivated on the next program start. Less RAM is required when the driver is deactivated. To reactivate any installed driver, simply activate the appropriate check box.
Chapter 8 Audio Driver Output Routing In every Track Object, you can choose the output pair, by using the lower button in the I/O section. Select either the left (odd) or right (even) channel of the output pair, by using the Pan control. 8.7 TDM Hardware Logic Audio Platinum (not Gold) allows you to make use of the TDM functions supported by ProTools III, ProTools 2 4 or Mix Plus.
TDM Hardware However, you should always use a drive from the approved list provided by Digidesign. System Requirements To operate with TDM support, you will need a Macintosh, Power Macintosh, or a MacOS compatible computer with properly installed ProTools III (PCI or NuBus), ProTools 2 4 or ProTools Mix audio hardware. In order to utilize the 24-bit capacity of ProTools 2 4 or ProTools Mix, Logic Audio Version 3.012 (with an installed TDM Extension), or Logic Audio Platinum 3.5 or higher is needed.
Chapter 8 Audio Driver Click on the check box by the word "TDM" (see above). The "x" will disappear, and you can now use your ProTools III hardware like a Session 8 system. You may disable the entire DAE driver, using the same steps, except that you should click on the check box to the left of the word DAE in the line above. After disabling all audio drivers, you can use Logic exlusively as a MIDI program.
TDM Hardware Object Parameters of TDM Audio Objects For general information on the audio object parameters, see the section The Object Parameter Box on page 6-104. Cha The Channel parameters on TDM audio objects have a few extra settings: When this is selected, the audio object becomes a bus fader, for example when in use as part of a subgroup. You could for instance, route several track objects’ outputs to buses 7/8, and then set the Bus-7/8 object to use the physical outputs 1/2.
Chapter 8 Audio Driver You can also use the Aux Object with a bus input as Aux Master Send for an external effects device. Select an output of the audio interface to be used as Aux object output. Then connect the input of the external effects device with this output. Now, you can direct the output of the external effects device back to the virtual mixer. ~Editing Plug-ins Plug-in Key Commands With Logic 3.0 and later versions, you can control Plug-ins with their own key commands.
TDM Hardware In the header line of the Plug-in window, you can open the Setups pull-down menu by clicking on the arrow button: Copy Setup copies all parameters onto its own independent Plug-in clipboard. They remain here, until the next time you select Copy Setup. This does not affect the global Logic clipboard. Paste Setup If you have opened a plug-in of the same type, you can paste the parameter set from the plug-in clipboard.
Chapter 8 Audio Driver Disabled Plug-ins If you haven’t done so, create a folder with the name “Plug-ins (unused)” in your DAE folder (or in any other location). Then move all TDM Plug-ins not used on a daily basis, into this folder. This will speed up the DAE (and Logic) boot process. Support of TDM Plug-in Sidechains Some TDM Plug-ins, such as Noise Gates or compressors, allow Sidechain Signals from other Tracks or Busses. This option is available in Logic Audio.
TDM Hardware one plug-in, in the first position (first slot), you can automate 64 parameters in this location: 64-127. If you insert an additional plug-in on the second slot, controllers 64-79 (16 parameters) will be available for the first plug-in, and 80-127 (48 parameters) will be available for the second plugin. If you use one plug-in in the first slot and one plug-in in the third slot, 32 controllers (64-95 and 96-127) will be available for each of the two plug-ins.
Chapter 8 Audio Driver draw function (which also is available as a key command), Hyperdraw will set itself automatically for the first used controller. Some plug-ins, like the Digidesign Plug-in “Dynamics”, respond to the controllers they receive "from the outside”, but they will not automatically update the operating control display. Therefore, Logic Audio will redraw the complete plug-in after a certain period.
TDM Hardware Special Features of ProTools III with 32 or 48 Tracks Logic Audio supports 32 or 48 track ProTools III systems, with more than one Disk I/O card, and 64 tracks with the ProTools Mix system.. Please remember the following, when operating a ProTools III system with more than 16 tracks: Every Disk I/O card has its own SCSI bus. This means that tracks 1-16 can only play back audio files from hard drives which are connected to card 1, tracks 17-23 only from disks connected to card 2 etc.
Chapter 8 Audio Driver If you operate more than one audio interface (through additional Bridge I/O cards), the additional interfaces are called "b", "c", etc.; for example, “Out 882b 1-2". Special Features of ProTools 24 The most significant new features of PtoTools 24 are: Under Logic you now can also record and playback with 24 bit word length. Provides up to 32 audio tracks. For system requirements, please see the Digidesign documentation.
TDM Hardware The 24-bit mixer requires more DSP capacity than the 16-bit mixer. Therefore, you may get a DAE error message ("DSPs maxed out”), when opening older songs with maximum DSP load, after the upgrade to ProTools24. In this case, you should use the 16-bit mixer plug-in. Changing Global Bit Depth If ProTools 24 hardware is being used, Logic will ask at the initial program start, whether you want to use 16-bit or 24-bit word length.
Chapter 8 Audio Driver After confirming the dialog, the audio files will be copied-the copied files will have the selected word length. Logic now will ask you if the references in the current song should be changed to reflect the copied files, instead of the original files. If you want to work immediately with the current song, you should confirm this dialog. Save the song with a different name by selecting File > Save as... if you want to keep the references to the original files in the original song.
TDM Hardware Corresponding Audio Objects Based on the connected hardware, and the installed extensions, this song will include audio objects that correspond to the currently active audio hardware, in the Audio layer of the Environment. It also includes the audio playback instrument, which you will set as the current track instrument for the recording of fader movements. You may select the complete layer (mm), copy it to the Clipboard (ma), and then insert it into a new layer in your Autoload Song (ma).
Chapter 8 Audio Driver Total Number of Audio Tracks When operating different audio hardware simultaneously, the number of possible tracks cannot be determined by merely adding them up. This is especially true if the connected systems have to use the CPU processor’s power. This is the case primarily in AV mode, but also when using DAE. The simultaneous operation of DAE hardware and AV audio tracks will result in a significant reduction in the number of usable AV tracks.
TDM Hardware Hardware Setup - Interface Options: Interface Port: Each of the two groups of up to eight channels can be individually connected to a Disk I/O or a PCI DSP Farm. The PT24 Disk I/O has two interface sockets. You can select the bridge interface in the Hardware Setup menu.
Chapter 8 Audio Driver Playback Engine Setup 7Playback Engine: -r Interface Options: @ d24 Card: Interface Port: Interface: m flOFlT Bridge B cl-81 I-, Sync Mode: rx$Gq Digital Format: -1 Ch 1-2 Input: [--x$xq Other Options 8.8 Direct I/O Until now, Digidesign hardware has always been addressed via DAE (Digidesign Audio Engine). Digidesign has now released hardware like “Project II”, that is not supported by DAE. The new Audio Engine has been developed to use these cards with Logic Audio.
Direct I/O available. Furthermore, you should only play back audio files from the hard drive attached to SCSI bus of your Power Macintosh, and NOT from any drive attached to the SCSI bus of the Digidesign card when using Direct I/O. Newer and larger ProTools 24 systems can be also be run via Direct I/O, instead of DAE. However, as you then lose all TDM functions, it does not really make sense.
Chapter 8 Audio Driver 8 . 9 Sonorus StudI/O In comparison with the ASIO driver, this direct support of the StudI/O offers the following advantages: Better performance More precise start when recording and playing back. Operating Modes The StudI/O can be operated in 5 different modes. All modes allow 24 bit: 2x ADAT 16 In/Output channelsalways available in ADAT format. ADAT + SPDIF 8 I/O channels in ADAT format, and two channels of S/PDIF I/O.
ASIO (in this case Logic Audio Platinum) to work together. An ASIO driver translates the input data of the hardware into a specific format, and transfers the data to the software (Logic Audio Platinum), which receives it as recording data. In turn, the software (Logic Audio Platinum) transmits the final mixed signals to the ASIO driver, which then transfers it to the hardware. The ASIO driver is generally provided by the manufacturer of the audio hardware.
Chapter 8 Audio Driver panel exists depends on the manufacturer of the hardware being supported. Clock Source This setting allows you to use a digital clock source from an external device, if the hardware and the driver you are using supports this. ASIO Buffer Delay Some ASIO drivers give incorrect information regarding input and output delay. The difference from the actual value may vary between different versions of the driver, therefore it is necessary to allow changes of this setting.
8.11 Yamaha DSP Factory The currently supported components of the Yamaha DSP Factory System include one DS2416 card and, optionally, up to two AX44 extension bays (4 analog ins and outs each) or an AX16T (2 x 8 ADAT Ins and Outs). Furthermore, Logic Audio Platinum is also ready to support up to 8 channels of one SW 1000XG soundcard and future I/O extensions whose specifications are yet unknown. In order to use the card, select Audio > Audio Hardware & Drivers and check DS 2416.
Chapter 8 Audio Driver Mixer The mixer directly reflects the available DSP and routing of the DSP Factory, as long as you use the ASIO Driver DS 2416 as the only driver. It is defined by the feature set of the hardware, and therefore is not completely variable. Please note that Logic does not utilize its own audio driver, but uses Yamaha’s ASIO driver, and the real-time effects of the digital mixer integrated in the DSP Factory.
Yamaha DSP Factory other hand, it might be useful to directly record EQs and dynamics. On the effect return channel, the internal multi-effects devices always use the first insert slot, but EQs and dynamics can be used in the following ones. Sends 0 Track channels (audio tracks) and input channels have up to 8 sends. The sends labeled “Effect 1" and “Effect 2" address the two internal effect busses. In addition, the sends of the available outputs of the installed hardware can also be used; e.g.
Chapter 8 Audio Driver DS2416 + AX16: 8 Inputs and 6 Outputs (2 more Outputs can be used in parallel with the internal effect busses; Recording busses are restricted to a maximum of 8 Inputs. A second AX44 may be used but does not increase the number of outputs you can address simultaneously (max.
Yamaha DSP Factory Logic DS2416 Routing You can open this window with a key command or from the audio window Options > DS2416 Routing.The left half is a sort of digital patchbay for selecting the inputs of the mixer channels 1-24. The right half is basically a patchbay for the outputs of the hardware. The input patches can be configured with certain limitations; e.g.
Chapter 8 Audio Driver this message with USE, the internal sample rate will be set to the detected rate.
