Some wav files will not play (in some applications) after installing latest codec pack

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Some wav files will not play (in some applications) after installing latest codec pack

Post by Arcone on Wed Feb 18, 2015 12:34 am

Might be that I messed up some settings so I tried resetting and clean installing a couple of times. One thing I do notice is that the wav files that DO play have a higher bit rate.

E.g. 705kbps plays but 112kbps doesn't.

What I also found out is that Audacity does play these files but mpc-hc and Fruity Loops (where the sound effects are from) do not.

What I also just found out is that if I save the wav file from audacity both mpc and Fruity Loops can handle it again. Audacity encodes it with vorbis and saves it in a higher bit rate. It would however be very impractical if I had to open and re-save my entire effects library with audacity Wink.

Any advice would be appreciated.

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Re: Some wav files will not play (in some applications) after installing latest codec pack

Post by Admin on Wed Feb 18, 2015 1:52 am

The difference between those files is probably not just the bitrate, but also the audio format. The WAV container supports a large number of audio formats.

Can you post MediaInfo logs for files that do not play?

Are you sure that those same files played before installing the codec pack? Because the pack doesn't install a splitter for WAV. So splitting is still done by standard filters from Windows. Only audio decoding itself is handled by the pack (for some formats).

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Re: Some wav files will not play (in some applications) after installing latest codec pack

Post by Arcone on Wed Feb 18, 2015 6:00 am

Aaah I see that all files that do not play in MPC-HC use 0x674f (Ogg Vorbis 1) which is listed as "not installed". I bet that is the info you would need the MediaInfo logs for? Now I just need to find that codec I guess... I tried installing the latest direct show filters from http://xiph.org/dshow/ but that did not prove to be effective :/

It may well be that this issue was not caused as a direct result of me installing the latest K-lite pack but it was the last change I could think of that I made to my system.

I just found my solution on a Fruity Loops forum if anyone else even needs the solution. Apparently I had to install the codec from somewhere within the Fruity Loops install directory.


To help anyone who has the same issue I'll quote the post:
" Sometimes Windows can disable .ogg vorbis codec which is necessary to play FLS samples. The Vorbis codec decompresses the samples.

1. go to the folder System\Installers\VorbisACM under the FL Studio folder
2. right-click on the file called "vorbisacm.inf"
3. choose the option "Install" in the menu that appears.

If the Ogg Vorbis codec IS installed, follow these steps to turn it on again:

1. Go to Start -> Settings -> Control Panel. Then select "Sounds and Audio Devices".
2. In the window that opens, go to the Hardware tab and select the entry "Audio codecs". Then click on the button labeled "Properties".
3. A new window opens. Go to the "Properties" tab and select "Ogg Vorbis Audio CODEC". Then click on the button labeled "Properties".
4. In the window that opens, make sure that "Use this audio codec" is selected. Then press OK and close the other two windows as well. "

(The first part worked for me and also lets me play them in MPC-HC again)

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Re: Some wav files will not play (in some applications) after installing latest codec pack

Post by Admin on Thu Feb 19, 2015 2:28 am

The codec pack only supports "normal" Vorbis audio. Same for Xiph codec and players like VLC.

Your files are a bit special and were created by that same VORBIS.ACM codec. It basically uses a hack to fit Vorbis inside the WAV container. WAV does not support variable frame size, which Vorbis uses, so the codec stores the Vorbis into an Ogg container and then puts that in the WAV. Real messy. That's the reason why it can only be decoded by the same ACM codec. Same applies for Vorbis audio stored in AVI container.

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Re: Some wav files will not play (in some applications) after installing latest codec pack

Post by Arcone on Thu Feb 19, 2015 2:48 am

Wow cool insight, that does sound messy indeed. Thanks again for all the info!

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Re: Some wav files will not play (in some applications) after installing latest codec pack

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