Kiwi software firm Booktrack - which adds music and other ambient audio to e-books - has raised US$2 million from investors and is now being backed by Warehouse founder Sir Stephen Tindall.
Booktrack says it offers readers a "movie-like sound experience" by mixing audio with novels or short stories being read on a computer or tablet device and counts Facebook billionaire Peter Thiel among its investors.
The company just closed its latest round of capital raising and took in around $2 million, said chief executive Paul Cameron.
Cameron said the company continued to receive support from the likes of Thiel, and the New Zealand Venture Investment Fund as well as new investment from Tindall's K1W1 fund and Park Road Post Productions, which produced the sound from the Hobbit and Lord of the Rings films.
A Japanese company, efu investment, also put money into the firm as did Phil Veal, the chairman of Kiwi expats association KEA.