Handbrake Passthru Uncover the Power of AC3 vs. Auto

AC3 Passthrough of a 5.1 audio track. Both these appear as options ... Now when I change the order in Handbrake, or remove the stereo ... If you have more than one audio track, how do you select one or the other? Such as if I have AC3 passthru and AAC 6 channel on one encode. Just going through the menu on the TV and notice these settings , Auto, PCM,Pass through, Dolby Audio, which setting should it be on as I have a Sonos beam gen ... I normal do passthrough for movies where I care about the audio. RomCom's or movies that I may only watch when I'm incredibly bored or whatever ... mov files created with QT 7.3 or 7.4 are still affected by this bug. Note 3: Perian 1.1.4 contains a bug in which DTS passthrough fails to work. Je dois manuellement changer en ac3 passthru. Dans l'onglet audio -> configure defaults, j'ai bien coché Auto passthru : ac3. Mais cela ne ... Passthru options. HandBrake supports passthru for a limited number of popular source formats. These are: AC3, DTS, DTS-HD, TrueHD, MP3 or ... However, when I used Handbrake, I selected "Auto Passthrough." I ... AC3 and being seen as "Lossy" with a bitrate of only 640kb/s. Does ... ... Auto Passthru" : "copy", "auto" : "copy", "MP3 (lame)" : "lame ... AC3 Passthru" ... xmixval = { # Audio mixdowns "Mono" : "mono ... ... Handbrake, WinFF and MkvMergeGui. ... On a completely separate note, can your program (or ffmpeg alone) convert both m2v & ac3 files to MP4?