Talk:Mel scale

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
WikiProject Psychology (Rated Start-class)
WikiProject iconThis article is within the scope of WikiProject Psychology, a collaborative effort to improve the coverage of Psychology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
Start-Class article Start  This article has been rated as Start-Class on the project's quality scale.
 ???  This article has not yet received a rating on the project's importance scale.
 

Mel and Hz[edit]

How can mel and Hz coincide below 500 Hz, and not above, when 1000 mel is defined as 1000 Hz? Maybe it is meant that below 500 Hz the relationship is linear? Guaka 17:49, 20 Aug 2003 (UTC)

2595 and 1227[edit]

Many authors say: Mel = 2595*log (1+f/700) .. where does this 1227.something in this article come from??

1127.01048 is for natural logarithms (see below). 2595.03753 is for logarithms to base 10. --Zundark 15:33, 21 Sep 2004 (UTC)

1127.01048[edit]

Where does 1127.01048 come from? (Maybe that's what the previous poster to this page meant?) Michael Hardy 01:40, 21 Sep 2004 (UTC)

It's supposed to be 1000/log(17/7), so that m = 1000 corresponds to f = 1000. --Zundark 15:33, 21 Sep 2004 (UTC)

"Mel"?[edit]

What does 'mel' stand for? Shoud imho be mentioned in the article. Sipalius 13:07, 5 Mar 2005 (UTC)

Mel is a short from word melody.

In other words...[edit]

"In other words," ... what? Is this an accidental deletion?

I don't get it[edit]

What does it mean that two pairs of pitches are judged by listeners to be equal in distance from one another? For me C and C# are always a half-tone apart, no matter in what octave. Is this about the granularity of hearing, ie how small a pitch difference we can recognize?--87.162.56.49 (talk) 00:08, 23 September 2008 (UTC)

The psychoacoustics article implies that you are right. It implies that the mel scale is calibrated such that the number of mels between one tone and another tone with a just-noticeable difference in frequency (in a typical human ear) is constant throughout the audible frequency spectrum. But how many mels is just noticeable? 10 mel? 1 mel? 0.01 mel? --68.0.124.33 (talk) 13:46, 15 October 2009 (UTC)
We had a long discussion, with sources, about the mel scale on the auditory list. You can jump into the middle and get some answers here. Dicklyon (talk) 15:52, 15 October 2009 (UTC)

Incorrect Link[edit]

The link to Newman in the first sentence is to the wrong Newman. I'm assuming (but not with complete certainty) that the correct Newman is Robert Newman who with Bolt and Beranek, founded Bolt, Beranek and Newman, latterly known as BBN. There is no wiki entry on Robert Newman but there is one for BBN.

Wawrom (talk) 22:21, 18 January 2013 (UTC)

The paper says E. B. Newman, so not Robert. Just unlink it. Dicklyon (talk) 23:25, 18 January 2013 (UTC)
I verified the name and middle initial, Edwin B. Newman, of Swarthmore College, removed the link and updated the URL. Dicklyon (talk) 23:32, 18 January 2013 (UTC)

External links modified (January 2018)[edit]

Hello fellow Wikipedians,

I have just modified one external link on Mel scale. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

As of February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete the "External links modified" sections if they want, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{sourcecheck}} (last update: 15 July 2018).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.


Cheers.—InternetArchiveBot (Report bug) 01:48, 25 January 2018 (UTC)