This article addresses concerns raised by some about 16 bit and 24 bit in Windows systems.
When using the WDM driver, only 16 bit modes are seen as an option in the Advanced section of the interface's Properties. However, this setting has absolutely no effect when recording using the ASIO driver, which users should always use in DAWs, due it's its low latency and increased peformance over WDM (Windows' own audio driver).
The audio stream captured from our USB 2.0 hardware is always 24-bit samples. These samples are not altered or processed in any way by the driver when recording via the ASIO driver. Windows audio control panel may say the device is in 16 bit mode, but the ASIO driver bypasses the Windows audio system, and is therefore not affected by this setting.
Therefore, using 24 bit depth in your recording software, while using the ASIO driver, is still 24 bit when recording/creating, where 24 bit actually matters.
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