What to change for Rock Band 3 under the CPU tab in RPCS3's Custom Configuration.

A screenshot of Rock Band 3's Audio custom settings, highlighting Enable Buffering in green with a dashed outline, Audio Buffer and Audio Out highlighted in blue with a dotted outline, and Microphone Settings, Microphone Type (Standard), Mic1, Mic2, Mic3, and Mic4 highlighted in tan with a solid outline.

  • A blue square with a dotted outline. Tweak depending on audio hardware and CPU:
    • Adjust “Audio Buffer Duration” depending on system.
      • Lower values give you less audio latency but use more CPU.
      • Higher values give you more audio latency but use less CPU.
      • Vocalists are affected the most by this, as a higher latency creates a distracting echo. Instrument players can use calibration to compensate regardless of audio buffer setting.
      • You can change this while the game is running, but it will require re-calibrating in Rock Band 3’s system settings.
    • Change “Audio Out” to “XAudio2” - While most users should stay on Cubeb, a couple of people have experienced better performance with XAudio2. Your milage may vary.
  • A tan square with a solid outline. For Vocalists:
    • Set Microphone type to Standard or Rocksmith.
    • Select an input device in “Mic1”, “Mic2”, and “Mic3” for vocals. If not playing vocals, Mic1 will be used for voice chat.
    • Once again, keep in mind that playing with framerates higher than 60 may cause issues with vocal detection.