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Express"],"published-print":{"date-parts":[[2026,6,15]]},"abstract":"<jats:p>Dual-comb distance metrology combines sub-\u00b5m precision with absolute distance measurement over meter-scale non-ambiguity ranges. The most common interferometric implementation requires sophisticated approaches to achieve continuous streaming due to the need for digitization at near-gigasample\/s rates. Here, we exploit the naturally low data burden of two-photon dual-comb LiDAR to demonstrate continuously-streamed distance metrology at up to 20 kHz, reaching a precision of nearly 1\u2005\u00b5m in an averaging time of 10\u2005ms. Using free-running 500\u2005MHz Er,Yb:glass femtosecond lasers, we achieve sampling rates sufficient to demonstrate the capture of a four-minute audio track from the displacement of a loudspeaker-mounted mirror. 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Further distribution of this work must maintain attribution to the author(s) and the published article\u2019s title, journal citation, and DOI.","name":"copyright","label":"Copyright"}]}}