interface GeneratedAudioConfig {
    path: string;
    durationSeconds: number;
    frequencyHz: number;
    sampleRate: number;
}
/** Generate a deterministic mono PCM WAV without relying on ffmpeg. */
export declare function generateToneWav(config: Omit<GeneratedAudioConfig, "path">): Buffer;
/** Deterministic xorshift bytes that do not collapse into a tiny gzip. */
export declare function generatePressureBytes(bytes: number, seed: number): Buffer;
/**
 * Copy a checked-in fixture into a driver-owned project directory and
 * materialize its generated binary assets. Source fixtures stay small and
 * reviewable; size-pressure tests can vary their v1 cap without allocating
 * multi-gigabyte files.
 */
export declare function preparePlanParityFixture(sourceDir: string, projectDir: string): void;
export {};
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