If set to ITEM the capture device is opened and closed for each recording, if set to SESSION it is hold open during one recording session. SESSION is the default over ITEM for new projects starting with Speechrecorder version 3.0.x. We experienced recording problems with some capture devices, when they are openend for each recording: Some notebook audio chips switch the auto gain control on/off, which causes low frequency ampltitudes at the begining of the recording. Some devices show a delay from openning the device to actually streaming audio data. And we have seen devices which do not deliver any data in rare cases.
Klaus Jaensch
2016-04-01
