- Extension
- .dsf
- .mpa
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- Sony
- MPEG
- 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.
- The MPA file format, standing for MPEG-2 Audio File, is designed to store audio data compressed using the MPEG-2 Audio coding standard. This format is a successor to the MPEG-1 standard, offering enhancements like improved audio quality and support for multiple audio channels, thus enabling surround sound experiences. MPA files are commonly used for both music and video soundtracks due to their efficient compression, which preserves sound quality while reducing file size significantly.
- MIME Type
- audio/x-dsf
- audio/mpeg
