Dear Sirs, sorry for troubling you. I bought the Studio 68c to use in my home studio, after the previous sound card.
It happens that in a very random period of time, usually not before an hour, the audio (both from Logic Pro, and through any music player) degrades until it becomes inaudible. I state preliminary that the iMac is being used only for music production.
I open Logic Pro, load any music file (the files reside on the main SSD of the iMac) – just a few tracks (normally MIDI and audio) – and the CPU varies from low percentages. Note that the various settings are the same as when I had the previous sound card.
The buffer is normally set to 512 samples. Same problem with different frequencies.
The problem seems to emerge randomly; sometimes within about 30 minutes when listening to songs with player; when working on Logic, more or less an hour. It also happens when changing music files, or listening to any music on a player. However, it happens that, opening any file, the audio is intact again. I tried to connect the card to a Mac Pro (early 2009 - El Capitan): no problem with the audio when listening with the player. I don't have Logic installed on the Mac Pro.
The audio chain is configured as follows: iMac to which two external USB HDs (a USB2 for general files - USB3 for the Samples) are connected.
iMac (21.5, end 2009, Intel Core 2 Duo - 3.06 GHz - Ram: 16 GB -1.07 GHz) (Logic Pro 10.4.3, Persons studio 68c)
SAMSUNG SSD 500 GB
Thank you for the kind attention. Best regards, Roberto Formia