2. ASIO Buffer Size Use the slider to adjust the ASIO buffer size for the device currently highlighted. Smaller buffer size means lower latency. Once you hear crackles or audio becomes distorted, you need to increase the buffer size. ASIO buffer size directly relates to audio latency. Thus, you want to get a rather small value here. 3. Load Default Settings Pressing this button will reset all configuration options to their initial defaults. Use when audio initially worked and you later got lost in the configuration process.