![]() I'm wondering how you're playing these files. I'm assuming that because I do normalize movie audio but never with music, but I think that's a safe assumption. Any computer software player I know of has built in normalization. Ironically if you normalize a highly compressed recording (like most all popular music in the last 15 years or so) it'll play less loudly than a recording using the same normalization which asn't compressed so much, which is the norm with older recordings. It depends on the levels in the input file. You also cannot apply global normalization and expect all the files to play at exactly the same volume. it won't make much difference.īut that assumes that normalization isn't causing signal clipping, as mentioned. This is easy in L:inux.īut if you can't tell. When I'm playing media on my laptop I use a Beringer USB DAC and just tell the playback software to send the audio stream straight to that device, no resampling or conversion. Well, yes, it will definitely decrease quality. I cant tell, but does this process degrade the quality of the music?. This method may be a little slow if you are looking for a large batch conversion process but your problem sounded similar to one I had when converting a few videos at a time or creating a DVD and it worked well for me. The nice thing about this meter is that is measures the active level of the sound card and does not need a microphone like some. This level meter also adjusts for 0 decibel level corresponding to the gauge and has a marker that you can set to freeze at peak audio or allow the marker to reset after a delay which is very handy to measure peak volume. If the sound is low, then I just note the reading on the meter and adjust accordingly. I just set my player to mid scale and Windows audio to 35. Level Meter with Digital readout for accurate steady state measurements version because it is simple and is adjustable as well as having bars as well as digital readout in 1/10th of decibels.īear in mind that the level displayed also depends on what your volume level is set to, but then again, I am trying to adjust the level to MY needs so it too is not a problem. has many digital meters to use for this process but I use the I use a manual method that unfortunately needs to have each video tested separately, at least a portion of it but This is not much of a problem for me since I just test the next file while another is converting. The methods mentioned above are all good, but I have run into problems where Media monkey, audacity, etc when measuring volume of the audio portion of some VIDEO files. I use it on all my MP3s before transferring them to my MP3 player. MP3Gain is also a handy program to have for adjusting MP3 volume without re-encoding. ![]() Foobar2000 can change MP3 volume losslessly but you'll need to extract it from the video files first. ![]() It's the only audio format which can have it's audio changed without needing to re-encode. The one exception to the "re-encoding" rule is MP3 audio. If it can save the ReplayGain info to tags, you can set up foobar2000's converter to use the info when re-encoding and it'll automatically adjust the volume as it encodes. It's an audio player/converter but it'll also play the audio inside common video containers (MKV/MP4/AVI etc). ![]() If I'm going to run a ReplayGain scan I generally do it using foobar2000. Some software players might, but I'd be astounded if any hardware players do. The ReplayGain info can also be saved to tags in the audio/video files and in theory the player should read them and adjust the volume on playback so there's no need to re-encode it, but unfortunately I don't know of any video players which support ReplayGain tags. once you've run a ReplayGain scan on the audio you'll probably need to re-encode it while adjusting the volume accordingly. the peaks are above 0db using lossy audio but as I said they're not actually "clipped".Īnyway. A few db of "clipping" is no big deal though. It'll also tell you if adjusting the volume according to the ReplayGain result will cause "clipping". The ReplayGain scan result should also tell you if the peaks are greater than 0db (lossy audio can contain peaks above 0db so while they're louder they're not actually clipped in the audio file itself). Ideally you'd probably want to use 83db or 84db for video soundtrack audio as it tends to have a little more dynamic range than "music" tracks. Most programs capable of ReplayGain scanning are designed to scan music files and base the result on a "target volume" of 89db. It works pretty well for stereo tracks but I haven't used it on multichannel audio myself.
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