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wavpack.exe VBR Settings
Didjeridoo
post Jun 8 2010, 15:10
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Hello))
I want to ask a question about the settings wavpack.exe
Why can raise only a nominal bitrate mode hybrid, why is not quality mode?

I need to encode the set of wav files with different bit depth and sampling rate. I need to set settings for each sample?

Thank you


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MPC --quality 10 --tmn 20 --nmt 20 - %d || WV -miqhnb5x3 - %d
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shadowking
post Jun 8 2010, 16:16
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You can still use BPS instead of bitrate: -b 2.0 to 23.9 bits/sample . The bitrate will then adjust automatically and even work for mono. It wont measure the audibility of noise though as VBR isn't yet implemented . For 44.1khz of more i think you can use the same BPS rate for cd audio. For low rez, you have to be more conservative as there is less masking .

Example :

-b4x = 350k for 44.1khz 16bit or 760k for 96khz 24bit


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Wavpack -b450x1
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Didjeridoo
post Jun 8 2010, 17:30
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Thank shadowking, you helped me a lot)))


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MPC --quality 10 --tmn 20 --nmt 20 - %d || WV -miqhnb5x3 - %d
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Didjeridoo
post Jun 9 2010, 16:24
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-miqhhb4.5j1 --use-dns
This parameters gives me normal quality?

This post has been edited by Didjeridoo: Jun 9 2010, 16:30


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MPC --quality 10 --tmn 20 --nmt 20 - %d || WV -miqhnb5x3 - %d
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shadowking
post Jun 10 2010, 14:22
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QUOTE (Didjeridoo @ Jun 10 2010, 01:24) *
-miqhhb4.5j1 --use-dns
This parameters gives me normal quality?



It will give high transparent quality for almost any situation. You can drop -j1 as it is already default. It may be good idea to include at least -x(1) for high-rez audio. For something much lighter to decode or transcode consider the normal or fast mode in conjunction with -x :

-b384hh >> -b415fx3






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Wavpack -b450x1
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bryant
post Jun 10 2010, 17:43
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QUOTE (Didjeridoo @ Jun 9 2010, 08:24) *
-miqhhb4.5j1 --use-dns
This parameters gives me normal quality?

I would agree with shadowking that -hh is probably overkill at that bitrate, and is slower to decode. I would drop it to -h and add at least -x. I generally recommend the highest -x argument that you are willing to wait for (up to -x6) because it does not affect decode speed.

Note that --use-dns is also enabled by default at normal sampling rates (under 64 KHz). At high sampling rates the default is for the noise to be shaped up into inaudible frequencies (-s1) which I think is better than the dynamic shaping (which tries to put the noise under the music).

David
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