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MP3 - General / Re: Resurrecting/Preserving the Helix MP3 encoder
Last post by Kraeved -I took the liberty of writing something regarding the -TX parameter over at https://wiki.hydrogenaud.io/index.php?title=Helix_MP3_Encoder#Magical_Mystery_Switch_-TX
Thank you, @maikmerten.
a) Wiki says that -TX6 is used by default, but -H screen is missing the word default next to TX6 and -EC screen shows ec->test1 = 0 instead of 6 when no number is specified and -1 instead of 6 when -TX is not used at all. I believe the word should be added, but what do to with the number?
b) The last TX setting (eighth in a row) has no specific number on -H screen, it just says “v5.1 2005.08.09 (see CVS log for details)”. Have you found anything interesting there?
c) When Helix is called with -TX# -EC, we see “ec->test1 = #”. It accepts 0, positive and negative integers with no validation. Since we'll probably never know the essence of the experiments of the previous team associated with this flag and the default setting (-TX6) is recommended, maybe it makes sense to put it at the bottom of -H screen within a separate section like “--- Mysterious legacy (Read wiki for details) ---” to avoid potential questions from users?
Also, I noticed that you told the user which Helix settings (-V115 -HF2 -F19000) might resemble LAME -V2. Let me clarify, which transition band does Helix use in this case? For LAME 3.99.5o and 3.101 beta 3, it is 18000 Hz - 18581 Hz.