Talk:Pre-echo

Untitled
This page needs review. To the uninitiated, it is a load of gobble-de-gook!

Seconded. Jackiespeel 16:58, 23 February 2007 (UTC)

Can someone explain the specific relation to the Gibbs phenomenon? The article is written asif Gibbs is 'the' cause for pre-echo, while intuitivly, it has to do more with: The specific algorith (ie, freq domain algo's might enjoy preëcho due to their packetbased nature), quantisation errors, and length of impulse respenses used. Oyd11 16:29, 6 July 2007 (UTC)

Audio special effects
Pre-echo is not always an artifact. It can also be added to soumd recording by some programs which can add normal echo. As in, optionall special sound effects of echo and pre-echo. If I'm talking about something else, at least there would need to be a disambiguation page, to not confuse the two. —Preceding unsigned comment added by 213.7.94.114 (talk) 21:55, 25 December 2008 (UTC)

Gibbs
This article is full of shit. Pre-echo has nothing to do with the Gibbs pheomenon. It is caused by quantization noise being spread over the transform window (Gibbs is about truncation of the spectrum, not quantisation). That's why it eventually goes away as the bit-rate increases. Jmvalin (talk) 13:50, 14 July 2009 (UTC)

Audio file
The audio file provided in this article is helpful, but maybe it should be more explicit about what it's trying to demonstrate. Is it showing mitigation of pre-echo (it is in the "Mitigation" section after all), or is just demonstrating pre-echo?

Monsterman222 (talk) 23:41, 4 February 2013 (UTC)


 * That might not be a digital artifact at all. It's probably just the analog print-through of the magnetic tape from which the LP was mastered. 217.238.150.202 (talk) 22:29, 29 March 2014 (UTC)

It is confusing that pre-echo is explained as a digital phenomenon, and then the audio example is of an LP record. Intellec7 (talk) 18:00, 9 January 2015 (UTC)