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Topic: Could you tell me about lame mdct algorithm? (Read 3780 times) previous topic - next topic
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Could you tell me about lame mdct algorithm?

Now I am studying lame's algorithm.I want to improve lame speed ,because we want more speed in encoding .But I can not know the algorithm.Could you tell me about lame mdct algorithm?Or tell the way to improve lame speed?

Thanks!

Could you tell me about lame mdct algorithm?

Reply #1 –
Look for gogo-no-coda if all you want is a fast LAME...

Could you tell me about lame mdct algorithm?

Reply #2 –
Quote
Look for gogo-no-coda if all you want is a fast LAME...
[a href="index.php?act=findpost&pid=239818"][{POST_SNAPBACK}][/a]


First ,thank you!
But now my time is limited,I hope that someone can help me and tell me about some things of lame .So I can quickly master lame's algorithm.
Thanks!

Could you tell me about lame mdct algorithm?

Reply #3 –
Quote
Look for gogo-no-coda if all you want is a fast LAME...
[a href="index.php?act=findpost&pid=239818"][{POST_SNAPBACK}][/a]

or lame 3.97 alpha which i heard is pretty fast.

Could you tell me about lame mdct algorithm?

Reply #4 –
Quote
Quote
Look for gogo-no-coda if all you want is a fast LAME...
[a href="index.php?act=findpost&pid=239818"][{POST_SNAPBACK}][/a]

or lame 3.97 alpha which i heard is pretty fast.
[a href="index.php?act=findpost&pid=239896"][{POST_SNAPBACK}][/a]


I know lame 3.97.But it has no linux version.If you have linux version you could give me ?Thanks!

Could you tell me about lame mdct algorithm?

Reply #5 –
You can use Lame 3.96.1 which was recently released (I would not advise to use alpha versions).

Extract the source code, ./configure --enable-nasm, make

Could you tell me about lame mdct algorithm?

Reply #6 –
Btw if you wan to improve Lame speed, MDCT is clearly not the part to optimize.
What you should do is to vectorise the quantize_xrpow and calc-noise functions.
 

Could you tell me about lame mdct algorithm?

Reply #7 –
Quote
Btw if you wan to improve Lame speed, MDCT is clearly not the part to optimize.
What you should do is to vectorise the quantize_xrpow and calc-noise functions.
[a href="index.php?act=findpost&pid=240024"][{POST_SNAPBACK}][/a]



Thank you for telling me!
I will to try to modify the parts of lame.
And I hope you could often help me in your spare time.Thanks!

At same time ,I thank top all friends.