USB Audio Recorder PRO is a specialized audio recording and playback application designed for users who require high-quality audio processing directly through their USB audio interface. The app offers an extensive range of features including mono, stereo, and multichannel recording options, with support for 16-, 24-, and 32-bit resolutions depending on the connected device. It also supports sample rates up to 384 kHz, ensuring professional-grade audio capture.

One of the key strengths of this app is its custom-built USB audio driver, which bypasses the limitations of Android's native audio support. This allows users to achieve superior audio quality without needing to root their devices. However, it is important to note that the app functions as a standalone solution and does not enable USB audio functionality across other apps. Additionally, your USB audio device must be class-compliant to ensure compatibility.

This app is particularly useful for musicians, podcasters, and audio engineers who need reliable tools for capturing and monitoring audio in real-time. With functionalities like input/output selection, buffer size adjustments, and level meters with peak hold, users can fine-tune their recording setups to meet specific project requirements.

USB Audio Recorder PRO stands out due to its comprehensive feature set tailored for both amateur and professional audio enthusiasts. The app provides versatile recording formats such as WAV, FLAC, OGG, and AIFF, catering to various post-production needs while avoiding patented formats like MP3. Its ability to handle multichannel recording and playback makes it suitable for complex audio projects, although stereo playback is limited to the first two outputs on multichannel devices.

Another notable feature is the internal mixer screen, which grants access to controls like gain, volume, and mute if supported by the connected device. Users can customize their experience further by selecting recording folders, such as external SD cards, and adjusting buffer sizes between 1024 and 16384 frames to optimize performance. The inclusion of basic playlist functionality addresses user demand for directory-based playback, albeit without advanced graphics or MP3 support.

The app also integrates practical sharing options, allowing users to distribute recordings via platforms like GMail or SoundCloud. While it emphasizes recording capabilities over playback frills, the ability to monitor levels before recording and play through Android's internal speakers ensures flexibility for input-only devices like USB microphones. These features collectively make USB Audio Recorder PRO a robust tool for anyone seeking precision in mobile audio workflows.