FSAC

FSAC (FS Audio Converter) is a Frameserver based CLI tool for audio encoding. You need an installed AviSynth+ frameserver to be able to use this tool.
Encoding engine is FFmpeg. For Atmos files, Dolby Reference Player is needed additionally.

Supported output codecs:

• PCM (WAV)
• LPCM (WAVE 64 / CAF)
• FLAC
• AC3 (Dolby Digital)
• E-AC3 (Dolby Digital Plus ⚠️ UNSIGNED)
• AAC

Supported input:

• all FFmpeg compatible audio codecs
• the following containers: MKV MKA M2TS TS AVI EVO VOB

❗REQUIRED 3RD PARTY TOOLS MUST BE DOWNLOAD HERE:❗

FSAC_Options.cmd

A script for setting the general options of FSAC.

Category	Option	Description
FOLDERS	O T R	Set the local paths for: Outputs of the tool, its Temp folder, and the installed Dolby Reference Player.
SETTINGS: Mono WAVs Layout	L	Channel naming of splitted mono WAV files. DTS-HD Master Audio Suite renames all files correctly for that DTS Suite.
BITRATES menu: 1	WAV: Bitdepth / Auto Bitdepth	Set the standard Bit depth for PCM files. If Auto Bitdepth is set, the tool will use the bit depth found in the source file.
	other codecs	Set bit depths, bit rates or quality for a variety of common audio codecs.
MISC menu: 2	Dolby Atmos Demuxing	ENABLED supports demuxing of Atmos files with following Layouts: 9.1.6 7.1.4 7.1.2 5.1.4 5.1.2. ⚠️For Atmos demuxing, you need Dolby Reference Player installed on your system❗
	Dolby Atmos Priority	When ENABLED, FSAC automatically changes the preselected channel layout to 9.1.6 [ATMOS] when demuxing a file (and only if Dolby Atmos Demuxing is also ENABLED). Channel layout can still be changed afterwards.
	Dolby Atmos Nameset	Nameset for the Channel Layouts for Atmos demuxing to Mono WAVs. Example Templates: * FFmpeg preset: FL FR FC LFE SL SR BL BR WL WR TFL TFR TSL TSR TBL TBR * shebdabe preset: L R C LFE SL SR BL BR WL WR T_FL T_FR T_SL T_SR T_BL T_BR * Numeric preset: 01_FL 02_FR 03_FC 04_LFE 05_SL 06_SR 07_BL 08_BR 09_WL 10_WR 11_TFL 12_TFR 13_TSL 14_TSR 15_TBL 16_TBR
	LPCM Container	Set the container for Multichannel LPCM encoding to WAV (WAVE 64 Container) or CAF.
	Standard Loudness	ORIGINAL: no changes NORMALIZED: raise volume until highest peak reaches −1 dB DIALNORM -31dB: Analyze DialNorm of source file, then raise volume (dB) until DialNorm −31 dB is reached.
	Short Filenames	ENABLED: Removes all additional info from output filenames for shorter output file names. Helpful if path is too long or file names get confusing.
	Logfile	ENABLED: Writes an additional log file next to the output file (identical naming).
Shell Extensions	Create (3) / Delete (4)	Create system-wide right click context menu items for files to use FSAC. ⚠️With activated Windows UAC, start the script as administrator, otherwhise the registry settings cannot be written❗

FSAC.cmd

The main FSAC script.

Usage with CLI Gui

• Open a file/container with this script (FS_Audio_Converter.cmd MyMovie.mkv)
• OR drag and drop a file over this script
• OR use Shell Extension menu

Settings

Setting	Options
Stream	If the input is a container with multiple streams, select the stream you want to encode.
DRC	Remove Dynamic range compression (DRC) from files. Default OFF ≙ removes DRC.
Codec	Choose your output codec.
Channel Layout	Can only be changed when demuxing Atmos. Sets the Atmos Channel Layout..
Sample Rate	Sample rate in kHz for output files. Default ORIGINAL. Options 48000 44100 22050.
Tempo	Change the tempo of the output file. Supported framerates: Slow-down or speed-up between 25 24 23,976 fps.
Pitch Correction	Along with the tempo change, you can opt to use pitch correction: YES: resulting pitch will be identical with source, but the tempo is changed NO: resulting pitch will be higher/lower than source file (depending on the tempo change). If no tempo change is applied above, you can still change the pitch without tempo change. Supported framerates (fps): 25 24 23,976 slow-down or speed-up.
Delay	Set a Delay in Milliseconds for output file. Just type the number without "ms". For negative delay use - before the number.
Amplify	Set amplification in dB for output file. Just type the number without "dB". For negative amplification, use - before the number. There are also some predefined options: ORIGINAL: No changes (same result as Amplify 0). DIALNORM: Analyze DialNorm of source file, then raise volume (dB) until DialNorm −31 dB is reached. NORMALIZED: raise volume until highest peak reaches −1 dB.
Save Settings	Saves all settings. This is helpful e.g. for TV shows where you have to encode many files with the same adjusted settings.

Usage with Command Lines (v0.70 and higher).

• Open a file/container with this script (FSAC.cmd MyMovie.mkv) and the switch(es) behind.
• Open this script (FSAC.cmd) and see all available switches.
• For Multindexing and start from a own batch file, take a look at the file multiindex_example.cmd.

Example:

• FSAC.cmd MyMovie.mkv --index-1 --DRC-off --Tempo-25to23976p --Dir-C:\MyAudio

Settings

Command	Switches	Options
--Index-	NUMBER	Number of Index in container you would decode. Leave empty for the first valid audio stream. ⚠️SELECT ONLY ONE INDEX❗
--DRC-	ON OFF	Remove Dynamic range compression (DRC) from files. Default OFF ≙ removes DRC.
--Tempo-	25to23976 p 25to24 p 24to23976 p 23976to25 p 24to25 p 23976to24 p	Change the tempo of the output file. Supported framerates: Slow-down or speed-up between 25 24 23,976 fps. p means with Pitch correction.
--Pitch-	25to23976 25to24 23976to25 24to25	Change pitch without speed changes. ⚠️DO NOT USE THE SWITCH --Tempo and --Pitch TOGETHER❗
--Codec-	LPCM MONOWAVs FLAC AC3 EAC3 AAC Atmos-LPCM Atmos-MONOWAVs	Choose your output codec. ⚠️The codecs Atmos-LPCM and Atmos-MONOWAVs only available with installed Dolby Reference Player❗
--Delay-	ms	Set a Delay in Milliseconds for output file. Just type the number without "ms". For negative delay use - before the number.
--Amplify-	dB ORIGINAL DIALNORM NORMALIZED	Set amplification in dB for output file. Just type the number without "dB". For negative amplification, use - before the number. There are also some predefined options: ORIGINAL: No changes (same result as Amplify 0). DIALNORM: Analyze DialNorm of source file, then raise volume (dB) until DialNorm −31 dB is reached. NORMALIZED: raise volume until highest peak reaches −1 dB.
--Dir-	<Path>	Set output directory ⚠️WITHOUT ""❗