- Extension
- .dsf
- .rm
- Format
- Binary
- Binary
- Category
- Audio
- Video
- Developer
- Sony
- RealNetworks
- Description
- DSD uses pulse-density modulation encoding - a technology to store audio signals on digital storage media which are used for the SACD. The signal is stored as delta-sigma modulated digital audio, a sequence of single-bit values at a sampling rate of 2.8224 MHz (64 times the CD audio sampling rate of 44.1 kHz, but only at 1⁄32768 of its 16-bit resolution). Noise shaping occurs by use of the 64-times oversampled signal to reduce noise and distortion caused by the inaccuracy of quantization of the audio signal to a single bit. Therefore, it is a topic of discussion whether it is possible to eliminate distortion in one-bit delta-sigma conversion.
- An RM file is a multimedia file used by RealPlayer, an audio and video playback and streaming program. It contains audio or video data or a link to a streaming media file, which is played back as it is downloaded. RM files are commonly used for streaming content over the Internet such as video and Internet radio.
- MIME Type
- audio/x-dsf
- audio/x-pn-realaudio
