![]() ![]() ![]() The option of just using one compression algorithm and keeping it fixed results in very poor compression / quality output. But if you install the latest version of Audacity (2.3.2) it’s already built-in. You can open MP3s without it, and you can export to WAV or several other formats without it. This means using buffers to do the processing which causes a delay in the output. You need to install LAME if you want to export-to (create) MP3s. This can't be done in real time because you have to know what the future wave is going to be. So for decoding you just do what you are told by the stream.Įncoding is another matter, you have to examine the waveform and make a decision on lots of things, not only the algorithm to use but what compression factors to use. However that algorithm will change very quickly maybe after 100 mS or so. To decode is relatively easy, you just use the algorithm that is signaled. Just to explain for those who don't know MP3 is a sort of tool kit of of encoding algorithms. In fact I think the MP3 patents have run out by now but the encoding bit has always been a bit of a black art. It makes no business sense to charge the same to decode a package as it does to decode it. Yes but there are different licensing conditions and fees involved. About the patents and algorithms, they apply to the decoders just as well, no? ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |