Hi,
This formula is meant to calculate the threshold for MDCT from the threshold
for FFT. It indeed only works when that threshold is calculated for every
frequency bin.
>
> Hi,
>
> Tmdct(i) can be calculated directly from Tdft(i) with this formula:
>
> Tmdct(i) = (2/M) * Tdft(i) * (cos( 2*Pi*n
>
> I am not major in psychoacoustic effect but I am wondering the way
> LAME's(and ISO dist10's) psychoacoustic noise threshold calculation.
>
> it is calculated by the way like this.
>
> E(i) : energy of bark i
> T(i) : threshold of bark i
> R(i) : ratio of bark i
> E'(i) : energy of band(sca
the full explanation, please let me know.
Bye, Menno
- Original Message -
From: "Takehiro Tominaga" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, June 07, 2000 1:51 PM
Subject: [MP3 ENCODER] psymodel ?
> Hi all
>
> I am not major in
Hi all
I am not major in psychoacoustic effect but I am wondering the way
LAME's(and ISO dist10's) psychoacoustic noise threshold calculation.
it is calculated by the way like this.
E(i) : energy of bark i
T(i) : threshold of bark i
R(i) : ratio of bark i
E'(i) : energy of band(scalefactor band
