I was having to edit on the go yesterday and was editing on a little portable Western Digital drive (USB 2 and 5400 RPM). Obviously not the best situation, but it was all I had with me and I needed to pass it off to someone. I was recording a voice over in FCP X and every time the recording failed. It would appear to be recording, but when I would stop, no waveform would generate and nothing I had just recorded was there. I was just getting empty audio clips in the timeline and browser .I realized that the write speed of the drive must be too slow to record a voice over in FCP X. I also tested the drive on my Mac Pro tower with the same results, just to make sure it was the drive. I ended up recording straight to my CPU and it worked fine. Just a heads if you find yourself in a similar situation.
On a related note I've noticed some drop out on recording VO - second or so being cut out in the middle at different places - which is obviously not good. Recording to USB3. No warning either. This coincided with recording through an h5n on a new Retina iMac which I hadn't done before so tricky to isolate. My Scarlet Solo I used to use doesn't work via the new mac which is a bit of a bummer.
I do tons of voice work, daily, and I've never had drop outs. I'm using an Apogee Quartet.
As for the H5n, you're using that as an I/O device? I know the newest version has an audio USB I/O mode, but I've also ready things about the preamps not being very good. Anyway, can you verify you're not overloading or underloading the signal? Most important, what drive type/connection are you recording to? Could be more than the I/O, or it could just be that. Are your drivers for the H5n up to date?
HHHmmm... OK, so both are on the USB bus. Problem is, I believe the H5n is recognized as a USB 2 device, which will cause your Mac's USB port to gear down to that USB 2 speed. Thus, your USB 3 hard drive is performing at USB 2 speeds. I don't know your specific setup, but could that be an issue?
The Scarlet wasn't even recognised. It's a new retina iMac with Yosemite and at the time I was in need of fixing the VO problem so I jumped n the h5n. I have some downtime next week so I may do a few tests. I'll post results here so others may benefit if I work out anything. Thanks for the link - I'll see if I can get the Scarlet running as well.
I was in the middle of doing several ADR recordings for a film project, when suddenly the red button would no longer respond when I clicked on it. I checked all the I/O settings, rebooted, etc., to no avail. Is there a cache that could have gotten full somewhere? Any ideas what the problem is?