Hello Brent,
Thursday, May 02, 2002, 9:31:40 PM, you wrote:
WB> Is there a documented list of lowpass frequency defaults chosen by LAME for
WB> each bit-rate and mono/stereo/joint stereo options?
Afaik, there is no such doc. But take a look at its sources and it's
clear.
For example, if you favor --alt-preset the following table from
"parse.c" is used:
+---- here is the bitrate in kbps
|
v
{ 80, 1, 1, 13500, 0, 0 , -3, 0.85 }, // 80
{ 96, 1, 1, 15300, 0, 0 , -4, 0.85 }, // 96
{ 112, 1, 1, 16000, 0, 0 , -5, 0.87 }, // 112
{ 128, 1, 1, 17500, 0, 0 , -6, 0.93 }, // 128
{ 160, 1, 1, 18000, 0, 0 , -4, 0.95 }, // 160
{ 192, 1, 1, 19500, 1, 1.7 , -2, 0.97 }, // 192
{ 224, 1, 1, 20000, 1, 1.25, 0, 0.98 }, // 224
{ 256, 0, 3, 20500, 1, 0 , 0, 1.00 }, // 256
{ 320, 0, 3, 21000, 1, 0 , 0, 1.00 } // 320
^
|
+----- and this one is lowpass freq
--
Constantin Bryzgalin
Project Manager
Streamware Development
http://www.streamware-dev.com
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