有一些原因，请参考:

- 需要用Cymatic Audio的机器格式化硬盘，而不是电脑

- 录音一定要用USB硬盘，不要用U盘，SSD U盘

- USB硬盘线尽可能短

- 有些硬盘有保护功能，当音乐声特大，震动，它会不正常。在硬盘底下垫防震材料

There are a few reasons that could be causing dropouts. Please check that you are avoiding the following:

- Do not use a thumb drive or SSD drive. Instead always use a USB2.0 hard disk for your recording. The reasons for this are explained in the section above "What USB Thumb Drives work well"

- Before using the USB drive, format the drive with the Cymatic Audio device's format option. Cymatic devices use the FAT32 file system with a default cluster size that is optimized for the device performance. When formatting a drive in FAT32 with other systems like Windows, the cluster size may vary depending on the disk size. This may cause dropouts.

- Avoid using long cables for the hard disk drive. Due to power loss on long cables, some of the hard disks go into a power saving mode and the read/write speed slow down, causing dropouts. Our USB storage connectors supply power to run external USB hard disks, but depending on the hard disk's power consumption an additional power supply for the hard disk might be needed.

- Some hard disk drives have internal protection for damage when there is a lot of movement. When the music is too loud (especially with low frequencies) the vibrations to the hard drive may cause the drive to move its head to a parking position for a while. In this case the data transfers are stalled for a while causing dropouts. Please put a soft material under the hard drive to prevent the problems with vibrations.