Thursday, September 28, 2006
First interviews done with new recording setup
I just completed two very short telephone interviews (both for Oracle OpenWorld) using the recording setup. The system definitely needs refining: both recordings have problems (but thank goodness, they're usable).
The first interview, about ten minutes long, has an annoying hum for about seven minutes, right in the middle of the call. It's the same hum that the Ground Loop Isolator is supposed to eliminate; why it stopped working, I'm not sure. The conversation is there, but the hum almost overwhelms the voices. I hope I can filter the noise out somehow before transcribing the call.
On the second interview, my voice is loud and clear but the person I'm speaking with is barely audible. The interviewee was speaking quietly on the phone, but not so quietly as the recording seems to indicate.
I'm not sure how to troubleshoot either of these problems. For the hum, I tried plugging in the Ground Loop Isolator in the opposite direction, even though it doesn't have ends labeled input or output. I also tried turning off my Bluetooth keyboard in case its radio signals were interfering somehow. Neither seemed to be the culprit.
The first interview, about ten minutes long, has an annoying hum for about seven minutes, right in the middle of the call. It's the same hum that the Ground Loop Isolator is supposed to eliminate; why it stopped working, I'm not sure. The conversation is there, but the hum almost overwhelms the voices. I hope I can filter the noise out somehow before transcribing the call.
On the second interview, my voice is loud and clear but the person I'm speaking with is barely audible. The interviewee was speaking quietly on the phone, but not so quietly as the recording seems to indicate.
I'm not sure how to troubleshoot either of these problems. For the hum, I tried plugging in the Ground Loop Isolator in the opposite direction, even though it doesn't have ends labeled input or output. I also tried turning off my Bluetooth keyboard in case its radio signals were interfering somehow. Neither seemed to be the culprit.
