V6 User Manual 1.00.book - Studio General

totally fixed the PCI latency problems on a Dell Inspiron 8000 and installing a “Signed” graphic card driver did thesame for an Asus Dual PIII workstation.Audio Engine Drops WarningThis message informs users about possible CPU delays leading to potential audio errors in record or playback.Mykerinos sends or requests audio data to or from the CPU in “frames” of 26ms. If one of these frames is not givento, or taken from, the Mykerinos driver in time, this will result in a loss of audio data, and the Audio Engine DropsWarning will be shown.Playback Stalls WarningPlayback Stall messages are triggered by access delays impacting either the VS3, resulting in audio drops whilepreserving the synchronization of the tracks or the Mykerinos driver. In the latter case the stall may also endangerthe integrity of the synchronization between tracks being recorded.MassCore DropsPlease see MassCore Overload Diagnosis and Cures on page 33Multi-channel Audio FilesWave, Broadcast Wave, AIFF or SDII multi-channel files are seen as mono files by the Pyramix Media Managerunless their file names conform to Pyramix requirements.Audio File FormatsSome audio file formats (like Pyramix native format, PMF and OMF) embed the track/channel number(s) in the fileitself. In this case, Pyramix recognizes the track as mono, stereo or multi-channel without problem even if the differentaudio tracks/channels of these files are actually stored in separate files.Some other formats (like Wave, Broadcast Wave Format, AIFF or MacIntosh SDII) do not keep this information inthe file itself but in the filename. Unless the correct naming convention is followed, Pyramix will see files in theseformats as individual mono, regardless of whether they are part of a stereo pair or multi-channel recording.Broadcast WAV FilesBWF-P means polyphonic. I.e. multitracks within the same fileBWF-M means monophonic. I.e. one file per trackPyramix RequirementsIn order for Pyramix to recognize that separate audio files in these formats are actually part of a stereo or multichannelrecording, Pyramix requires the following naming convention:The filename of the different tracks/channels must be the same except for one section containing the tracks/channelsnumber as 3 digits surrounded by _## and ##_. For example: MyStereoSound_##001##_.wav andMyStereoSound_##002##_.wav are seen by Pyramix as a single two track media named MyStereoSound.Other systems, the Zaxcom DEVA portable recorder for example, do not use the same convention. They may namethe files they produce in this fashion: MyStereoSound-1.bwf and MyStereoSound-2.bwf. These files will be recognizedby Pyramix as two mono media files.SolutionMultiFileFixer is a small ‘tool’ application that automatically renames all files in a given folder and sub-folders,that fit selected parameters, to follow the Pyramix convention.In a normal Pyramix installation the MultiFileFixer application can be found on the Windows Start menu:Start > Programs > Pyramix > MultiFileFixerTroubleshooting : Multi-channel Audio Files 28 - 551