- Extension
- .dsf
- .amv
- Format
- Binary
- Binary
- Category
- Audio
- Video
- Developer
- Sony
- MPEG4IP
- 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 AMV file is a video saved in the Actions Media Video file format, which is used by some Chinese portable media players. It contains a compressed, low-resolution (96x96 to 320x240 pixel) video.
- MIME Type
- audio/x-dsf
- video/x-amv
