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OM System says the DS2 format supports better sound quality, which it says improves speech recognition results.

Checked against its source on October 16, 2026

In the source's own words

“The DS2 format also supports better sound quality which in turn improves the speech recognition results.”

The Digital Speech Standard (DSS & DSS Pro), OM System Professional Audio Support, 2026, Section on DS2 encryption and sound quality.

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What it measures
OM System describes DS2 as a further development of the DSS format that uses the same compression and adds file encryption at 128-bit or 256-bit AES.
What it does not show
The page gives no measured accuracy figures for DS2 or DSS, so treat the claim as the vendor's expectation until you test your own files.

Source

Cited on

DS2 format is claimed to improve speech recognition | Yap