The SM-57 is not known as a very sensitive microphone. Without knowing my guess is the Polsen doesn't have enough clean gain to create a strong analog signal into the computer when used with a dynamic microphone like the Shure SM-57. Generic Windows drivers are not optimized for audio production and it is always recommended to use a dedicated audio interface with ASIO drivers if possible.Where are you cranking the volume up, on the Polsen or the track input gain? If you lower the setting too much you will get poor playback performance. Try the different drivers and lower their buffer settings to see what works best on your system.

If you are not using an audio interface you'll choose between the generic Windows media drivers. There will be audio buffer settings there as well. While Macs use Core Audio drivers, if you are using an audio interface on a Windows system, you'll want to select ASIO as the driver type within your playback software as it is the most efficient and best performing. The example below is from a Roland Quad Capture audio interface and Ableton Live software. You’ll need to find a setting that provides the best balance between real-time playback and system stability.

A lower buffer setting means less delay, at the expense of system performance. Note: the Buffer Setting manages the delay that you are hearing. With both of these devices you can select their buffer settings from within your audio playback or interface software. For superior audio quality, try using an audio interface. Computers have built-in soundcards that allow you to playback audio from your computer. It is delay created from the audio playback device driver. This is not generally a fault of the midi controller itself. Sometimes, when you trigger MIDI notes on a keyboard or pad controller, you may find a delay between the time you play and what you hear.

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