![]() the "source client" generates the actual stream from the source material, and transfers it to the icecast server via a TCP socket connection.So re-encoding is required.īroadcasting is split into 2 responsibilities: MP3/AAC/OGG/FLAC files in all possible bitrates plus mixer/soundcard output for the live parts plus crossfades and effects applied. At the other hand the source material from which the stream is created can be heterogenous, that is e.g. The stream relayed to the listeners has a fixed encoding and bitrate, e.g. How does that work if you broadcast with Icecast, is it streaming the MP3 as is, or does it re-encode MP3 again? įormat and semantics of the 4 gain tags is described here:īorewit: Copied this suggestion to issue #258 Normalizing all tags to ID3v2.4 and/or replacing all MP3/AAC by FLAC is not an option at the moment for practical reasons. Now music-metadata allows me to read that information and I'm happy :-) '+004,+004,N' I know the applied gain was -4 dB (or is it -6dB? I've read something about a factor of 1.5). To my understanding I can tell the gain applied by mp3gain through the MP3GAIN_UNDO tag. (To me it's quite a step to dismiss the manual adjustments I've meticulously applied over the course of many years, in favor of an automatic solution.) Besides the actual listening experience I also want compare the applied gain values with my manual adjustments. Now I want examine if mp3gain did a good job. Now I've decided to give ReplayGain a try and have applied it to the entire source material (by the means of mp3gain via MP3Gain Express GUI). After some recent experiments with icecast and several tools I got the impression generating an icecast stream that respects my manual volume adjustments will become quite a challenge. (Over the years iTunes changed its storage approach several times, so the entire collection is not uniform). iTunes stores the manual adjustments mainly (but not only) as ID3v2 RVAD tags. ![]() Over the course of several years I've applied per-track volume adjustments manually to the entire source material (mainly MP3 and AAC) by the means of iTunes. ![]() One crucial requirement is pleasant perceived volume for every track. The trial version only allows you to tag a limited number of songs.I'm about to set up an icecast stream.If you want all your music library's files to contain all the relevant data so that they are easier to identify and order, download MP3 Tag Express. One of the program's best functions is the batch tagging option, which means that we can select various songs simultaneously so that we can add the album or artist's name to all the tags at the same time, something that can save us a lot of time. The program has a very plain interface, but it shows the data corresponding to each song very clearly, which will make the tagging process a lot more dynamic, it also includes an audio player so that we can identify a track in the case that it doesn't have a name nor a tag. If we want to have all our music library's songs properly tagged and sorted, we will require a tool like MP3 Tag Express, that will allow us to move through all the folders in which we have music files stored to be able to tag them.
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