Author Archives: Hifime

Send and receive 5.1 DTS/AC3 signal via Optical SPDIF

The UT23 USB to optical converter and DACs with an optical out (UAE23, UAE23HD, UH1) can send 5.1 Dolby digital DTS and AC3 audio. It’s important to understand that 5.1 audio sent over optical is always sent as an encoded and compressed stereo track. This is not only the case for Hifime devices, it’s the [read more]

Record SPDIF optical audio with UR23/S2 Digi optical to USB converters

UR23 is an optical to USB converter (32kHz-96kHz) while the S2 Digi does both optical to USB and USB to optical (44.1kHz-192kHz). Both units shows up as audio devices in Mac, Windows and can be selected as the input/output device in audio programs. Here is a guide on how to record and/or play through optical [read more]