Pre-echo
id:
pre-echo-318-5477681
title:
Pre-echo
text:
In audio signal processing, pre-echo, sometimes called a forward echo, is a digital audio compression artifact where a sound is heard before it occurs. It is most noticeable in impulsive sounds from percussion instruments such as castanets or cymbals. It occurs in transform-based audio compression algorithms – typically based on the modified discrete cosine transform (MDCT) – such as MP3, MPEG-4 AAC, and Vorbis, and is due to quantization noise being spread over the entire transform-window of th
brand slug:
wiki
category slug:
encyclopedia
description:
Digital audio compression artifact
original url:
https://en.wikipedia.org/wiki/Pre-echo
date created:
date modified:
2022-12-01T02:29:48Z
main entity:
{"identifier":"Q4894905","url":"https://www.wikidata.org/entity/Q4894905"}
image:
fields total:
13
integrity:
14