Output Format: Choose the format for your created file. Click 'Option' button and active the option windows, then you can set parameters by yourself.

Filter:
· Notch Filter: Enable/disable Notch Filter. Varies from 40 to 200.
· HighPass Filter: Enable/disable HighPass Filter. Varies from 200 to 44100.
· LawPass Filter: Enable/disable LawPass Filter. Varies from 200 to 44100.

Set record-time: Set the time by your need. Then recording progress will stop automatically by the time.

Record when silence: Check 'Record when Silence', the created file will include the silent part. Uncheck 'Record when Silence', our software will automatically delete the part which lower than the level you have set. By default, 'Record when Silence' is checked.
Option:
AttackTime: Sets the sounding time for the starting point of recording. This is time for non-silence detection. Time is in ms.
ReleaseTime: Sets the silence time for the ending point of recording. This is time for silence detection. Time is in ms.
Level: Sets the level of loudness for the ending point and starting point of recording. This is a level for silence detection. Its value depends on your Sound Card. In general, if record from microphone, range the value from -21 to -25, if from other device, range the value from -1 to -5.