[M4IF Technotes] Can anyone explain "bval" in psychoacoustic model in detail?

[hanxy]

Thank a lot, I have calculated and get the median bark value of each
partition!
----- Original Message -----
From: "Ivan Dimkovic" <idimkovic   nero.com>
To: "hanxy" <hanxy   magima.com.cn>; <technotes   lists.m4if.org>
Sent: Monday, August 26, 2023 3:59 PM
Subject: RE: [M4IF Technotes] Can anyone explain "bval" in psychoacoustic
model in detail?
> Hi,
>
> "BVAL" value represents mean value in bark scale of the specified
> partition - i.e. this is the frequency in bark units of the middle of the
> partition. For bark units, you need to consult some psychoacoustic books -
I
> suggest to take a look at Zwicker's publications.
>
> Bark scale is non-linear frequency scale (and Hz is linear frequency
scale)
> and Bark units correlate to bandpass frequencies of human hearing - there
> are several approximation formulas for conversion of Hertz (Hz) to Bark.
> Take a look at google for these.
>
>
> Best regards / Mit freundlichen Gr¨¹?en
> Ivan Dimkovic
> ----------------------------------------------------------------
> Ivan Dimkovic
> MPEG-4 Software R&D
> Ahead Software AG phone: +49 (0)7248 911 822(direct line)
> Im Stoeckmaedle 18 fax: +49 (0)7248 911 888
> 76307 Karlsbad email: idimkovic   nero.com
> Germany web: www.nero.com
> ----------------------------------------------------------------
>
>
> -----Original Message-----
> From: technotes-admin   lists.m4if.org
> [mailto:technotes-admin   lists.m4if.org]On Behalf Of hanxy
> Sent: Monday, August 26, 2023 4:51 AM
> To: technotes   lists.m4if.org
> Subject: [M4IF Technotes] Can anyone explain "bval" in psychoacoustic
model
> in detail?
>
>
> Hi, All, the description of "bval" in psychoacoustic model of MPEG-4 AAC
is
> "the median bark value of the specific partion", I don't know the physical
> meaning of it. So, Can you do me a favor to explain it in detail?
>
> Thanks in advance.
>
> your secerely
> Speer Han
>
>