Sharp Moves 1-Bit Amplifier into Lower Price Points
By David Dritsas
Sharp Electronics wants 1-bit digital audio—an high definition amplification technology—to inspire the audio market. The company has been shipping 1-bit audio products in the U.S. but recently announced several lower priced products.
1-bit audio technology was developed by Sharp in 1990's. The amplification technology employs seventh-order delta-sigma modulation as well as other circuitry to produce higher quality sound. For example, when used with SACD, the sampling rate—how much information is conveyed in a second—is 64 times higher than conventional CD. 1-bit can, however, also provide improvement to CD-based material as well. Ultimately Sharp hopes that other companies will license one-bit technology and will start building it into products. Helping to spur interest, a 1-bit Audio Consortium was formed last February and currently has 38 members, mostly Asian in origin.