Adobe 22011292 User Guide - Page 64

50 CHAPTER 5 File Menu - Edit View Interface Options Two main options are provided: Generic Win32 and ASPI/SPTI. Under normal circumstances, ASPI/SPTI should be selected. (ASPI, developed by Adaptec, stands for Advance SCSI Programming Interface. SPTI is an acronym for SCSI Pass Through Interface, and was implemented by Microsoft as an Operating System-supported way of sending SCSI commands; at this writing it's only available on Windows NT, Windows 2000, and Windows XP.) Generic Win32 should only be used if the ASPI/SPTI setting doesn't produce satisfactory results. (The Generic Win32 option causes the Extract Audio From CD feature to use Input/Output control codes instead of SCSI commands.) When the ASPI/SPTI button is pushed, several additional options are available: • Read Method is a drop-down menu that lets you choose the way Adobe Audition reads CD audio. Several methods are provided, many of them developed before the SCSI 3 specifications were published. (The SCSI 2 specs made no accommodations for CD ripping.) • MMC - Read CD: This is the SCSI 3 specific command, and it's the command that most all recent drives will work with. If you have a newer CD-ROM drive, try this setting first. • SBC - Read10: This is a standard SCSI read command that uses a 10-byte SRB (SCSI Request Block). All SCSI devices are required to support this command. • SBC - Read6: This is a standard SCSI read command that uses a 6-byte SRB (SCSI Request Block). Many SCSI devices support this command, but since it's optional, not all do. • Plextor (D8): Use this setting with older Plextor CD-ROM drives. It sends the D8 SCSI Op Code to the CD-ROM drive. • D5: This command sends the D5 SCSI Op Code to the CD-ROM drive. • NEC (D4): Use this setting with older NEC CD-ROM drives. • CD Speed: This drop-down control lists all extraction speeds that your selected CD-ROM drive supports, and lets you choose the speed you want to use. Many people will find satisfactory results with the Max (Maximum) Speed option. However, if extraction at maximum speed produces errors, try choosing a slower speed. • Buffer Size: The figure in the Buffer Size box specifies the amount of data Adobe Audition calls into the CD Extraction module to fetch, which therefore determines how much data is pulled from the CD in each call to the read command. The default is 16 KB, but you're welcome to experiment with the other sizes (which range all the way to the highest buffer size your CD-ROM drive supports). While higher sizes mean faster ripping, they could introduce errors into the ripped file. • Swap Byte Order: Some CD-ROM drives designed to work only with other types of computers (like DEC and Macintosh systems) report data using the Little Endian byte order, while PCs need data reported using the Big Endian method. Checking this box changes the byte order from Little Endian to Big Endian or vice-versa. You would normally leave this box unchecked; check it only if the extraction process seems to work fine but the audio results are "garbage". • Swap Channels: When this box is checked, the left channel of the CD's audio is placed in the right channel of Adobe Audition's Wave Display, while the CD's right channel audio is placed in the Wave Display's left channel.