Volume decreases in MPC

[Marcus Halberstam]

hello,

this is my very first posting in this forum, so i hope, you guys can help me! ;)

i use media player classic 6.4.7.6 for divx playback, and something very odd happens with the audio: it always starts with normal volume, but soon it decreases. this happens very subtly, but is very audible when i perform a jump in the timeline, which brings the volume back to normal. it is no problem with my speakers, because i tested that with recording the wave output internally with adobe audition, and it is clearly visible.

this whole thing started when i reinstalled my windows xp system. oh, and this doesn't happen at all with normal audio applications like winamp...

any clue?

thanks for help!

marcus

[mage]

I was starting to get annoyed by this as well. Stopd posted the solution in the sourceforge forums. Uncheck normalize in options. Link (http://sourceforge.net/forum/forum.php?thread_id=1027040&forum_id=281015)

[chros]

Originally posted by mage
I was starting to get annoyed by this as well. Stopd posted the solution in the sourceforge forums. Uncheck normalize in options. Link (http://sourceforge.net/forum/forum.php?thread_id=1027040&forum_id=281015)

I have visited this link, and perhaps I'm misunderstanding something, but the Normalize option is required to get always the same level ...

Another approach is using the DeDynamic 0.2 directshow filter (U can dowload from Doom9 software archives), or its successor the DynEQ 1.02 directshow filter from: http://zahodi.o5.ru/files/dyneq.rar (The difference between the two is the Equalizer, so I suggest to use the latter.) It's excelent !!!

The problem with it is that it only works with movies with 2 channel audio tracks (mp3, 2ch AC3, 2ch ogg, etc) ... So U must (!) use the AC3filter v0.70 (and not the built in AC3 decoder of the MPC) to not get playing troubles with 5.1 AC3 audio ...
So in this case this movies will lower its sound further too ... :(

The new TCMP (4.0 beta5, www.tcmp.org) has a newer version of this DynEQ filter, which can connect to 5.1ch audio ! So if U want to get the same effect with these movies U have to stick to TCMP ...
(That's why I have asked Gabest to integrate this newer DynEQ into MPC ... (http://forum.doom9.org/showthread.php?s=&threadid=29798&perpage=20&pagenumber=81 at the bottom of the page) If more people ask him perhaps He will sooner do it ... :) )

I'm hoping I have helped ... :)

[nightrhyme]

So frustrating this normalizing thing.
Every movie you watch you are turning the volume up louder and louder to hear whats going on.

Why does a otherwise perfect player like this contain such a devastating bug ?

It's killing me :scared:

[chros]

So frustrating this normalizing thing.
Every movie you watch you are turning the volume up louder and louder to hear whats going on.

Why does a otherwise perfect player like this contain such a devastating bug ?

It's killing me :scared:

It's not the player bug ! It's an ac3filter 'feature' ...
Like 'mage' had said uncheck the normalize checkbox on the ac3filter panel.
Today or tomorrow I'll post a reply about sound , it will be interesting ... :)

[Leak]

So frustrating this normalizing thing.
Every movie you watch you are turning the volume up louder and louder to hear whats going on.

Why does a otherwise perfect player like this contain such a devastating bug?

Bug? What bug? :confused:

If you don't like normalization, just turn it off. The only other way to implement this would be to decode all audio when you start playing a file, find the loudest part and scale according to that - which of course means it would take ages for the video to begin playing...

np: Underworld - Eight Ball (Underworld 1992-2002 (Disc 2))

[nightrhyme]

Thanx for reply.
You see I'm asking because I don't understand.

I have of course turned normalization off.
Strange you say it's a ac3filter bug because I'm experiencing the same behavior with mp3 sound.

This doesn't happen in for instance WMP 10.

[chros]

OK. check this thread:

Use DeDynamic/DynEQ filter to increase the audio quality !
http://forum.doom9.org/showthread.php?p=688713#post688713

[nightrhyme]

Thanx for reply.

Hmm where do I download these filters ?

[chros]

Thanx for reply.

Hmm where do I download these filters ?

It's in my 1st post on this page !!!! GGrrrr ! :)

[nightrhyme]

Thanx for reply.
Sorry was looking for the link in the thread you linked to.
I thought you were talking about something new that would fix both 2ch and multichannel audio.

I did read all I could find about this problem before posting in this thread and therefor also read about these filters.

I wish the developer of MPC would just fix this problem. It's the coolest player around except for this.

I found another user complaining about the same (http://www.videohelp.com/tools?tool=Media_Player_Classic):
I have made this comment before but I would like to make users aware of it again. The louder the volume gets in a video, the lower the volume will go down to "normalize" it with the rest of the audio. After the loudness goes down, the volume will not automatically return to the previous audio level. I think you will find that if you watch a movie and simply click the timeline at the current duration you are at, you will notice the volume increases. MPC has had this problem for several versions and needs to be fixed.


It's still killing me :scared: But I guess I'll have to live with it :rolleyes:

[yaz]

khm ... and what about using ffdshow for audio decoding a/o postprocessing. normalization is ok there.

btw ... there is an option on the audio setup panel called 'dynamic range control'. is that what u're blaming ? (just to make me understand :) )

and what version of mpc do u use ? (6.4.8.4 is the very last i know) does the problem still exist in that ?

the bests
y

[nightrhyme]

Yes I use the latest MPC.

I use FFDShow 20041012 and it doesn't decode audio as far as i understand. I have tried just about every newer FFDshow version and I refuse to use them since they crash when presented with weird filetypes :p

My codecs are: XviD decodes XviD Nero decodes AVC and FFDshow handles the rest.

I cant find this Dynamic Range Control you are talking about. It isn't in MPC. Where you talking about some recent FFDshow ?

If you don't know what I'm talking about. Then just watch a movie for ½ an hour and the drag the seek slider a minut back and experience the sound suddently boost :-(

[chros]

I cant find this Dynamic Range Control you are talking about. It isn't in MPC. (

It's in there, but I don't use it (since I use ac3filter):
Options -> Filters -> Audio Decoders -> AC3 decoder settings and here is the checkbox ...

Try it, and post the results (as I recall it didn't work for me much).

[yaz]

@nightrhyme
try this (http://www.aziendeassociate.it/cd.asp?dir=/ffdshow) or this (http://m17n.cool.ne.jp/freeware/mpc/) or this (http://esby.free.fr/CelticDruid/) or ... follow the development of ffdshow here (http://forum.doom9.org/showthread.php?t=80256). the latest ffdshow compile was released 2 weeks ago. milan himself releases very rarely (if at all), it's always left to 'volunteers', so , don't expect too much from the development site in this regard.

yesterday evening i tried drc in mpc on a dvd and i hadn't noticed any level drop. however, i just watched it only for 30-35 mins.

the bests
y

[nightrhyme]

I found this filter called: TFM_Audio_Filter. It works pretty well as a replacement for AC3 filter. Haven't testet a lot yet. But please try it out. No more decrease of volume level.

Download: http://www.free-codecs.com/download/TFM_Audio_Filter.htm

[chros]

I found this filter called: TFM_Audio_Filter. It works pretty well as a replacement for AC3 filter. Haven't testet a lot yet. But please try it out. No more decrease of volume level.

Download: http://www.free-codecs.com/download/TFM_Audio_Filter.htm

http://www.tfm.ro/audiofilter/audiofilter.html

It's rather old filter, I don't know if it supports multichannel audio ...

[nightrhyme]

Yeah probably not. I don't have a multichannel speaker setup. Only stereo. So it doesn't matter too much to me.
I love the filter though :cool:

[Freakazoidalmaniac]

I had the very same problem. Here's my details & Fix for the volume problem when moving the slider anywhere along the timeline and have it jump in volume no matter what you do.

I have an Audigy 2 Soundcard ( don't think this has a bearing really because I believe this to be a codec issue)

1. Uninstall Soundcard.

2. Driver Cleaner Pro ( driverheaven.net ) <-- Clean any trace of old soundcard drivers from your machine.

3. JVPower tools ( search for the free version ) or you can use any quality registry cleaner ( be careful! ) <-- Remove any trace / relative entry that has your soundcards name

4. Remove all audio codecs / codec packs ( install and uninstall if you have to )

5. Download up to date drivers for your soundcard.

6. Reboot.

7. Reinstall soundcard drivers and codec packs.

8. Issue resolved.

[nightrhyme]

I had the very same problem. Here's my details & Fix for the volume problem when moving the slider anywhere along the timeline and have it jump in volume no matter what you do.

I have an Audigy 2 Soundcard ( don't think this has a bearing really because I believe this to be a codec issue)

1. Uninstall Soundcard.

2. Driver Cleaner Pro ( driverheaven.net ) <-- Clean any trace of old soundcard drivers from your machine.

3. JVPower tools ( search for the free version ) or you can use any quality registry cleaner ( be careful! ) <-- Remove any trace / relative entry that has your soundcards name

4. Remove all audio codecs / codec packs ( install and uninstall if you have to )

5. Download up to date drivers for your soundcard.

6. Reboot.

7. Reinstall soundcard drivers and codec packs.

8. Issue resolved.

Happy to hear you fixed your problem but believe me, if the issue was that easily fixed this thread wouldn't exist ;)

However the problem seems to lie with AC3filter and NOT MPC

[chros]

Happy to hear you fixed your problem but believe me, if the issue was that easily fixed this thread wouldn't exist ;)

However the problem seems to lie with AC3filter and NOT MPC

nightrhyme is right !