This term refers to sound arriving on a direct acoustical path from the source to the listener in an enclosed space (i.e. with no intervening reflections from boundaries). The direct sound is the desired signal for a speech reinforcement system. (See also direct-to-reverberant ratio, reverberation, signal-to-noise ratio, masking.) Return to
Sound that reaches the listener location by direct line-of-sight, without being reflected off any surface or transmitted through any material, and thus is unaffected by the room conditions.
The sound that's heard straight from the source and has not been reflected off another surface. Direct sound is clearer than reflected sound.
Sound that arrives at a listener's ear (or a microphone) directly from the sound source, without reflection.
Sound directly from the subject to microphone.
Low-latency mixing, hardware acceleration, and direct access to sound devices. It provides this functionality while maintaining compatibility with existing device drivers.
Sound which travels by a straight path from a sound source to a microphone or listener.
The sound that you hear directly from the source.
A sound reaching the ears in a straight line from its source. The direct sounds are always the first sounds heard. The "critical distance" from a soundsource is when the spl of the direct sound is equal to that of the reverberant field. See "far field," "near field," "precedence effect." Compare "reflected sound," "reverberation."
Sound that arrives at the listeners ear first.. Sound reaching the listening location without reflections, i.e., sound that travels in the most direct path from the source to the listener.
DirectSound is a software component of the Direct X library, supplied by Microsoft, that resides on a computer with the Windows operating system. It provides the interface between applications and the sound card, enabling applications to produce sounds and music. Besides providing the essential service of passing audio data to the sound card, it provides many needed capabilities.