CREATE TABLE table_name_63 (release_date INT, sampling_rate VARCHAR)

Around what time frame release a Sampling Rate of 12-bit 40khz?
SELECT SUM(release_date) FROM table_name_63 WHERE sampling_rate = "12-bit 40khz"
SELECT SUM("release_date") FROM "table_name_63" WHERE "12-bit 40khz" = "sampling_rate"