Use OpenIV to browse the internal folders. Look for files labeled with character names or mission prefixes. Right-click the desired .ivaud file and select Extract .

Launch OpenIV, select GTA IV for Windows, and navigate to pc/audio/sfx/resident.rpf or speech.rpf .

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Go to the tab, click your primary audio device, and click Configure . Change the audio channel from 5.1 Surround to Stereo . Apply changes and restart the game.

The Ultimate Guide to GTA 4 Cutscene Audio Files: Modding, Extraction, and Downloads

To read and extract data from GTA 4's proprietary formats, you need specialized community tools.