The device options dialog is mostly relevant if you have more than one soundcard installed. Here you can select the soundcards for recording and playback and adjust the format of the recorded data.
Recording
Wave Input Device
This is the sound card from which to record data. You only have to change this if your system has more than one sound card, for example when you are using a USB device.
Sampling Rate
This is the same setting found on the Analyzer Settings dialog.
Sample Size
The sample size influences the quality but also the storage requirements of the recorded sound. The default setting of 16 bit per sample corresponds to the quality of standard audio CDs and should be sufficient for most purposes. A higher bit depth of 24 or 32 bit can be useful when the dynamic range of the recorded signal is very high, and when it contains very quiet passages that should later be amplified.
Channel Format
The channel format allows to select between stereo and mono recordings. It is also possible to extract only the left or right channel of a stereo signal and save the resulting recording into a mono file. This can be useful with certain soundcards that do not properly support mono recordings.
Note: A stereo recording requires twice as much storage space as a mono recording.
Temp Folder
This is the folder where Overtone Analyzer will store data as you are recording it. Make sure that you have enough hard drive space left. A mono recording with 44100 samples per second requires about 300 MB (half a CD) per hour.
Playback
Wave Output Device
This is the device for playing back the recorded sound. This can be different from the input device.
Midi Output Device
This is the device for playing the sounds from the piano keyboard and the overtones (except for the "Pure Sine Wave" overtone sound, which is played through the wave output device).
