Audio quality issue

Tuplica · Post by **Tuplica** » Mon Mar 13, 2006 5:27 am

I've already taken a look through the guides, but I couldn't find anything that precisely referred to my problem... but if someone knows of one, please point me at it and I'll get out of your way.

My problem is this. I'm working on a vid using an audio file ripped from a CD at 320kbps, 44100 Hz. The mp3 itself sounds quite good, but when I put it into the video and export at full quality/44100 Hz 16 bit (the maximum my copy of Premiere will allow in quality that doesn't surpass the original file in terms of Hz), it sounds... well, flat. I'm using a rather ambient sound that has a lot of different sounds going on at the same time, and whereas with the mp3 they all sound distinctly seperate, the quality of the song played in the video just doesn't seem as good.

I'm pretty befuddled at this point... if there's a way I can redub the entire video with the mp3, that'd be great... and if I need to convert it back into a WAV for full quality, that's doable as well. Just don't know what to do at this point and I could use a few pointers.

Thanks.

maciko · Post by **maciko** » Mon Mar 13, 2006 6:55 am

Mixing different sounds together is not only about it's placement in the mix using level (volume) but it pays to also look at it's stereo or multichannel atributes. EG, if you try to stick a fairly centred sound over a mice wide ambient sound, the centred (mono) component will always sound dominant.
Also...
MPG lops quite a lot of the high end frequency spectrum, if you would like to see the proof play a cd through windows media player use the bars and waves dodgy spectrum analyzer I think it's called ocean mist you will find that at the right side of the spectrum the high end frequency looks normal. But after you MPG it you will find that the high end gets chopped out a fair bit. this usually occurs at a high frequency range, and goes mostly unnoticed. But sometimes it sticks out like dogs balls! This usually has the same effect as you described.

Solution...

Dont use compressed files.

Scintilla · Post by **Scintilla** » Mon Mar 13, 2006 11:01 am

Tuplica wrote:... and if I need to convert it back into a WAV for full quality, that's doable as well.

Your best bet is rather to re-rip the track as an uncompressed WAV in the first place; not just for reasons of audio quality, but also because Premiere generally handles uncompressed files better.

gangstaj8 · Post by **gangstaj8** » Mon Mar 13, 2006 10:22 pm

Tuplica wrote:...but when I put it into the video and export at full quality/44100 Hz 16 bit (the maximum my copy of Premiere will allow in quality that doesn't surpass the original file in terms of Hz), it sounds... well, flat.

Re-rip the song as a WAV as suggested, then make sure it's being exported as uncompressed audio as well. You want to keep it uncompressed until the final step of distribution compression, which won't be through Premiere.

Rozard · Post by **Rozard** » Mon Mar 13, 2006 10:57 pm

Your best bet would to not even export the audio from Premiere in the first place. Edit the audio however you're going to use it in an audio editing program, then import the WAV into Premiere to edit with. Once you've finished the video, export it, and combine/compress the audio in VDub.

Tuplica · Post by **Tuplica** » Tue Mar 14, 2006 1:01 am

Thank you all very much! That's exactly the information I was looking for... Shouldn't be a problem now.

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Audio quality issue

Audio quality issue

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