Quantum Audio Time Stretch is a dedicated stand-alone application designed exclusively for time stretching audio files. It supports a wide range of audio formats including WAV, AIFF, AU, FLAC, OGG, OPUS, MP3, and M4A, handling sample rates from 32 kHz up to 192 kHz. The software preserves stereo and spatial fields across mono, stereo, and multi-channel formats such as 5.1 and 7.1, ensuring the original audio's integrity remains intact throughout the process.

Users can stretch audio anywhere from four times slower to four times faster with five selectable quality settings tailored to different needs. Lower settings offer quick previews suitable for speech or rapid adjustments, while higher settings focus on delivering superior audio quality, suitable for offline processing when real-time performance is less critical. The application uses a modern time stretching algorithm with transient detection and adjustable sensitivity, enabling precise and natural-sounding results. Additionally, Quantum includes a mini player for immediate previewing before finalizing transformations.

Quantum Audio Time Stretch operates faster than real-time on most computers, leveraging multi-core processing to handle multiple files simultaneously. It maintains common metadata such as title, artist, and album, making it convenient for batch processing and catalog management. Compared to more complex reference implementations, Quantum achieves near-equal quality with significantly less processing load, making it an efficient choice for users seeking high-quality time stretching without sacrificing speed. Versions are available for Windows ARM64, Windows 32-bit, and Linux platforms, ensuring broad compatibility.