audiostreamer — MATLAB Audio Device I/O (R2025a+)

audiostreamer is the unified replacement for audioDeviceWriter, audioDeviceReader, and audioPlayerRecorder. It provides player-only, recorder-only, or full-duplex modes with callbacks, pre-buffering, transport control, and measurement helpers.

Version requirements: audiostreamer requires Audio Toolbox R2025a or later. The start and write methods were added in R2026a.

When to Use

• Playing audio through a sound card or USB audio device
• Recording audio from a microphone or audio interface
• Full-duplex playback + recording (e.g., acoustic measurements, loopback tests)
• Listing or selecting audio devices and drivers
• Any workflow that involves audio hardware I/O in MATLAB

When NOT to Use