Different voices and engines produce noticeably different loudness levels, which makes blended output and audiobooks uneven.
Request: Optional loudness normalization (e.g. RMS/EBU R128 target) applied after synthesis, controllable from settings.
Acceptance criteria: enabling normalization produces clips with consistent perceived loudness; disabled keeps current behavior.
Different voices and engines produce noticeably different loudness levels, which makes blended output and audiobooks uneven.
Request: Optional loudness normalization (e.g. RMS/EBU R128 target) applied after synthesis, controllable from settings.
Acceptance criteria: enabling normalization produces clips with consistent perceived loudness; disabled keeps current behavior.