Why does my Pro Tools LE session clip when I open it on TDM hardware?

Why does my Pro Tools LE session clip when I open it on TDM hardware? Pro Tools LE uses the power of your CPU's processor to perform mixing and processing. A side benefit of this technology is its ability to use 32-bit floating point math to scale the level of signals to avoid clipping (which translates to great headroom). Signals in Pro Tools LE can indeed clip, but signal management can be easier... you mostly have to watch output levels for mixed signal busses and bring them down so that they don't clip. Pro Tools TDM systems use HW DSP acceleration that utilize 24-bit fixed point math. (Comparing 24-bit fixed point and 32-bit floating point audio systems is a bit like comparing PowerPC and Intel Pentium processors... properly implemented and designed, you can get a great result out of either one... but comparing the techniques used directly can be difficult!) TDM systems provide 48 bits of precision at the mix bus, which allows a very large degree of headroom as well. However, Plug-In processing in the TDM world is restricted to a 24-bit data path, so as with most any signal processing in the audio world, some attention to level setting is necessary to avoid clipping. For example , if you introduce a signal into a DigiRack EQ that is close to "full code" (the hottest digital level before clipping) and you add a large boost on an EQ, you will likely clip the EQ Plug-In. Just as with any rack mounted device, etc., you can avoid this simply by using the input attenuator control provided. The EQ Plug-In for Pro Tools LE behaves the same way, but because all of the processing is occurring in the host computer, the levels can be scaled for you to avoid most clipping without adjustment (other than mix outputs which require it). Note: Some Plug-Ins use a technique called "double precision arithmetic" to provide 48 bit precision when processing, which results in increased headroom. This is great, but keep in mind that these Plug-In do require roughly twice as much DSP power to do their work. Because of these differences, if you plan on exchanging sessions between Pro Tools LE and TDM systems, it can be prudent to attenuate the input level of a Plug-In like DigiRack EQ if you have applied a large amount of boost to a predominant frequency (like a big booming kick drum). This will avoid the possibility of clipping in the TDM version of the Plug-In, and you'll still get to take advantage of a "24-bit clean signal" when levels are set correctly. [Page View]

My D-Verb plug-in is not functioning properly after installing Pro Tools ...

My D-Verb plug-in is not functioning properly after installing Pro Tools LE 5.1 Mac. D-Verb asks for a key disk authorization, and I only have a serial number. Do I need a key disk? WARNING: FREE D-Verb does not work with Pro Tools FREE. Installing Pro Tools LE 5.1 or the D-Verb Plug-In Demo over previous installs of Pro Tools LE will remove your FREE D-Verb Plug-In. To keep your FREE D-Verb Plug-in from being overwritten by the Pro Tools LE 5.1 and D-Verb Demo Installers, remove both the D-Verb and D-Verb AS Plug-Ins from your Plug-Ins folder.Place the plug-ins in a temporary location other than the Pro Tools Plug-Ins folder and outside of your System Folder, such as on your Desktop. The Plug-Ins folder is located in the following directory:System Folder:DAE Folder:Plug-Ins After removing the D-Verb & D-Verb AS Plug-Ins from the Plug-Ins folder,run the Pro Tools 5.1 LE Installer. Once the Pro Tools 5.1 installation is complete, both the D-Verb and D-Verb AS Plug-Ins can be returned to the Plug-Ins folder. An updated FREE D-Verb Installer for Pro Tools LE users is posted on the Digidesign website in Support/Downloads at http://www.digidesign.com/download Note: If you have already run either the Pro Tools LE 5.1 or D-Verb Demo Installer and fear you have overwritten your FREE D-Verb Plug-Ins,you can still reinstall the FREE D-Verb Plug-In Promotion from the Pro Tools LE 5.0.1 Software CD. If you continue to have problems with your D-Verb authorization, download D-Verb v1.8.1 from http://www.digidesign.com/download/dverb. This version of D-Verb (v1.8.1) does not require authorization. [Page View]

DAE error -9113 when launching Pro Tools LE on Windows 98 or Windows ME. ...

DAE error -9113 when launching Pro Tools LE on Windows 98 or Windows ME. This error occurs if the WIN 98 WaveDriver is not installed, is disabled, or is installed incorrectly. Resources must be assigned to the hardware before Pro Tools is installed. Therefore, it is imperative that you follow the installation procedure documented in Chapter 3 (specifically, pages 18 and 19) of the Digi 001 or Toolbox XP Quick Start Guides. These guides are available for download at http://www.digidesign.com and are shipped with their respective products. [Page View]

When I try to launch Pro Tools LE for Windows the message "Missing cfd.dll" ...

When I try to launch Pro Tools LE for Windows the message "Missing cfd.dll" or "Cannot find cfd.dll" appears on the screen. These errors can occur if you install Pro Tools before installing the WaveDriver, or have an incorrect driver installation. Resources must be assigned to the hardware before Pro Tools is installed. Therefore, it is imperative that you follow the installation procedure documented in Chapter 3 (specifically, pages 19-21) of the Getting Started with Digi 001 Guide. This guide is available for download at http://www.digidesign.com/support/documents.html [Page View]

How do I get the WaveDriver to install If I installed it with the add ...

How do I get the WaveDriver to install If I installed it with the add new hardware control panel. There are two ways: 1) Remove your Digi 001 or Audiomedia III from the Device Manager, and then delete the digidesigndalwdm.inf file in directory path of C:\Windows\inf\other\digidesigndalwdm.inf Then restart the computer. After the computer restarts, windows will detect the Digi hardware again. After Windows detects the hardware, choose specify location and browse to the folder where the WaveDriver is on the Pro Tools disc. 2) You can also use the update driver option under the driver tab for the Digi 001\Audiomedia III in Device Manager. (This will only work if the user had installed using the add new hardware control panel to install the driver). [Page View]

Can I use an earlier OS other than OS 8.6 for Digi 001? What about OS ...

Can I use an earlier OS other than OS 8.6 for Digi 001? What about OS 9? The first Digi 001 systems shipped with Pro Tools LE 5.0 and were supported under os 8.6 or OS 9.0. Earlier operating systems are not supported. [Page View]

All of the input and output choice pop-ups reference a different interface ...

All of the input and output choice pop-ups reference a different interface (888) other than the Digi 001. How do I fix this? Select I/O labels under the Setups menu. Select Inputs from the Display section of the I/O Labels window. Hit Factory Reset. Repeat this procedure for the outputs and all other I/O labels available. [Page View]

How do I record a MIDI track as an audio track in Pro Tools?

How do I record a MIDI track as an audio track in Pro Tools? 1) Create an audio track(s). If a stereo recording is desired, create a stereo track or make two audio channels and pan each hard (100) left and right. 2) Connect the outputs of your MIDI device (keyboard, drum machine, etc.) into available inputs of your Digidesign Hardware. 3) Set the input of the audio track(s) to the Digidesign Hardware input(s) you have connected to the outputs of your MIDI device. 4) If you are not actually recording yet but want to monitor the signal through an audio track(s), make sure that Pro Tools LE is set to Input Monitor only under the Operations menu. 5) Record enable your audio channel(s) and hit play/record. [Page View]

When I overdub audio with prerecorded MIDI the two are slightly out of ...

When I overdub audio with prerecorded MIDI the two are slightly out of sync in Pro Tools LE or TDM. You need to set the Negative MIDI Playback Offset in the Preferences menu. Choose Setups>Preferences>MIDI. This capability is provided to compensate for the audio monitoring latency. If you are monitoring the output from your midi devices thru a mixer, there is no latencey. If however, you are monitoring the devices thru the Digi 001 the midi tracks will play slightly later that the audio tracks. The larger the setting for the Hardware Buffer size, the larger the latency. By configuring a Midi offset, you can get your Midi tracks to play back slightly earlier by a specified number of samples, thereby compensating for the latency in monitoring qudio within Pro Tools LE. [Page View]

I'm unable to get MIDI signal into Pro Tools LE via the Digi 001 on OS ...

I'm unable to get MIDI signal into Pro Tools LE via the Digi 001 on OS 9.x. * Make sure that the Digi 001 OMS driver is in the OMS folder, located in the System folder, and that the 001 is recognized by the OMS Studio Setup. * Make sure the "Use Apple SerialDMA when available" is unchecked in the OMS preferences which are located under the Edit menu of OMS. If you uncheck it, you must restart the CPU for the change to take affect. * Make sure that you have defined an input device in the OMS Studio Setup for your MIDI. * Make sure that your MIDI device is checked in the Input Devices menu located under the MIDI menu in Pro Tools LE. * Make sure that you have the appropriate filters selected in the Input Filters menu located under the MIDI menu in Pro Tools LE. * Make sure that "Run MIDI in background" is checked in the OMS MIDI setup window located under the Setups menu in Pro Tools LE. * Make sure that you have the correct MIDI channel selected and that the MIDI track is in record enabled. * If you are not actually recording yet but want to monitor the signal through an auxiliary, make sure that Pro Tools LE is set to Input Monitor only under the Operations menu. * Try restarting the Mac again after confirming the previous steps to make sure that the serial ports get reset. [Page View]

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