Lots of ways of hearing it.

Considering that we're dealing with a verse from Song of Songs, which is a book of the Bible, it shouldn't surprise us that, accurate or not, the phrase gets used quite a bit. I didn't expect that searching for "voice of the turtle" crossed with, for instance "Ariel and Chana Bloch" would bring me to their translation - though it might perhaps have shown up as part of a comparison of other versions/translations. But there was no reason not to try, and I was already curious - who might be using the phrase. It turned out that quite a few people were.

I was pleasantly reminded, for instance, that a great acoustic guitarist of the '60s whom I enjoyed listening to back then, John Fahey, had released an album in 1968 with the apparently intentional reference to Song of Songs in the title: Voice of the Turtle. I hadn't heard Fahey in years, and stumbling onto the album raised the obvious question of "whatever happened to him?". So, a side-trip to Wikipedia was a good way to catch up with him - and to learn that he'd died in 2001. I doubt his music is heard very often today, though it certainly can serendipitously happen.

Still along musical lines, Voice of the Turtle is the name of a long-standing musical ensemble devoted to Sephardic music. The members of Voice of the Turtle knew quite well that the turtle in their name actually referred to a bird, but still found meaning in the name. From their website:

The "Turtle" is actually a turtledove--the symbol of exile, the harbinger of spring and of peace. It is familiar to English speakers as a "turtle" from the King James Bible. (The Hebrew word is tor. Whether a mistranslation, or simply the poetic form of the word, the "turtle" is able to encompass a vast array of images. Our logo--an ancient lyre with a tortoise shell as its resonating box--is decorated by the Star of David and the Islamic crescent, both ancient symbols. Their juxtaposition evokes a significant part of Sephardic history.
The group has recorded numerous albums and performs to critical acclaim.

In The Song of Songs the turtle's voice signifies the start of Spring and in that way love. Spring, however, doesn't only signify love. For many Americans it's also the start of Spring Training, and the baseball season. Among other references to this particular verse I discovered, perhaps the strangest was the fact that Ernie Harwell, the radio announcer of the Detroit Tigers baseball team for over 40 years, would open each Spring Training season by reciting the verse.

And those were only the obvious (to me) references.

Go to: On finding a turtle's voice.