TAK

Tom's lossless Audio Kompressor
(T)om's verlustfreier (A)udio(k)ompressor
Developer(s)	Thomas Becker
Release	TAK v2.3.1 (2021-03)
Type	Lossless
Recommended encoder	[[{{{recommended_encoder}}}|{{{recommended_encoder}}}]]
Website	ThBeck.de/Tak/Tak.html (German)

Tom's lossless Audio Kompressor (TAK) is a lossless audio codec. It comes with a freeware (closed-source) encoder/decoder as both a command-line executable and a GUI, as well as a decoding library and an SDK to use in other applications, and a Winamp plugin - all for the Windows operating systems (known to work with Wine).

TAK has gained recognition for its performance figures, achieving compression like Monkey's Audio “High” at same encoding time, and ditto for the even higher-compressing OptimFrog “Normal” - and while also decoding at speed (CPU load) second only to FLAC. TAK could beat every FLAC setting simultaneously on size and encoding time. (All performance figures in this article are taken from the 4th revision of Martijn van Beurden's comprehensive lossless comparison for CDDA audio, TAK version tested: 2.3.0.)

Features

For an end-user considering TAK as a an audio format - likely due to its performance - the following features are quite common among lossless codecs. Some competing formats are lacking certain of these features, and some are free from certain of the limitations listed; some support more input formats and some support fewer. To compare TAK with other lossless codecs, see HA Wiki's Lossless Codec Comparison.

• Streaming support (necessary headers for decompressing the audio are written to the stream every 2 seconds)
• Seeking without seek table
• Error handling: each frame protected by a 24-bit checksum for detection (also optional MD5 audio checksum for the entire file). According to the README, the decoder can decode through errors, and a single bit error will never affect more than 250 ms.
• High-resolution audio support: up to 192 kHz sampling rate and 24 bits/channel
• Support for up to six channels. Channel mask in WAVEFORMATEXTENSIBLE.
• Piping support for encoding
• Tagging: APEv2 tags at end of file.
• RIFF chunks supported for recreating also non-audio chunks of the original .wav files. See the "Wave file meta data" section in the README.
• Multi-core support (encoding only; the README warns that you will likely only benefit from physical CPU cores).

Even if the bit depth must be 8 or 16 or 24 bits, TAK is known to employ a "wasted bits" strategy that treat a a (say!) 20 bit signal in a 24 bit container by detecting that 21 to 24 are "wasted" and compress the 20-bit signal without compression size penalty: see van Beurden's lossless comparison, section 2.3.

Limitations

For an end-user considering TAK to compress common lossless audio files like found on CDs or DVDs, the main limitation is the first of the following bullet items, namely support. On a platform that supports TAK, the other items listed are either common to several if not most codecs, or can (but not necessarily will) be circumvented by external applications.

• Currently there is no hardware supporting the format and software support is limited. The official encoder/decoder is closed-source (but a decoding library can be used in third-party applications); ffmpeg offers an open-source decoder.
• Does not support floating-point PCM (for that, use WavPack or OptimFrog).
• No Unicode support as of version 2.3.1. External applications can circumvent this (foobar2000 does, CUETools does not).
• The encoder can read no other input files than standard-compliant .wav; but, using piped stdin (like external applications might do) rather than file input, one can convert from other lossless formats and in particular, circumvent the WAVE standard's 4 GB limitation.

For a hybrid lossless/lossy mode, it is possible to use TAK with lossyWAV. This is arguably an option for advanced users; others who want hybrid solutions will probably consider those formats which support it natively (WavPack/OptimFrog).

Software support

ffmpeg can decode TAK files on several platforms, and both the GUI (Tak.exe) and the command-line program (Takc.exe) work with Wine. Some of the Windows applications given below use ffmpeg for decoding, others use the official decoding library.

The MusicBrainz Picard tagger (multi-platform) supports TAK since version 0.11. The VLC Media Player (multi-platform) can play (and transcode from) TAK since at least version 2.2.0.

Windows-specific

• TAK 2.3.1 download link - Official release which consists of a CLI, a GUI, the decoding library, the SDK, and a Winamp plugin.
• TAK Decoder 0.5.4 - Plugin for foobar2000 (supports tagging and ReplayGain, uses the current (2.3.1) decoding library).
• dsfTAKSource 0.0.1.6 - DirectShow source filter which uses the 2.2.0 decoding library to play TAK-files in Windows Media Player, Media Player Classic - Home Cinema, Zoom Player and alike.
• DC-Bass Source Mod - DirectShow source filter which uses the 2.3.0 decoding library to play TAK-files, amongst many others, in any DirectShow media player (as mentioned above).
• LAV Filters - Set of open-source DirectShow filters which uses FFMpeg's reverse-engineered decoder to play TAK-files in any DirectShow media player.
• Media Player Classic - BE - DirectShow media player with an internal TAK source filter which uses FFMpeg's reverse-engineered decoder to play TAK-files. The internal TAK source filter also supports embedded cue-sheets.
• Mp3tag – universal tag editor with support for TAK
• shntool (since version 3.0.6)

Using TAK

For encoding/decoding through other software, see heading below; you can pass command-line options to those applications.

More exhaustive instructions are found in the README.html included in the official TAK distribution.

Encoding, decoding, test and verification

The following command-line parameters (and more!) are accessed through buttons and checkboxes in the GUI:

• -e encodes, -d decodes; also, it can run test encoding/decoding by -te resp. -t.
• -v verifies upon encoding; -md5 adds audio MD5 checksum for later verification.

Compression parameters and performance

The compression options are displayed by name in the GUI. The compression options range from -p0 to -p4, with each of the having an optional “e” (for “extra”) or “m” (“maximum”) modifier for additional compression at the expense of encoding (but not decoding) time, making for fifteen in total: -p0, -p0e, -p0m etc. The number (0 to 4) does affect decoding CPU load, but only modestly (van Beurden, figure 1.2.)

• -p2 is the current default option. It is measured to compress on par with Monkey's “Normal”, but encoding at speeds between WavPack and FLAC default options.
• -p0 is the fastest option, encoding around WavPack default and FLAC -6, but 2-3 times faster.
• -p4m is the slowest option for highest compression (though at very small improvement over -p4e). The README promises compression size "on par with Monkey's Audio High and OptimFrog Normal", and van Beurden's lossless comparison confirms this - sizes even measure to between Monkey's “High” and “Extra high”, while decoding at 10-15 percent Monkey's/OptimFrog's CPU load.

Command-line examples, including pipe redirection

Basic encoding resp. decoding commands are

Takc -e input.wav
Takc -d input.tak

Example with more parameters: The following will encode input.wav to output.tak using compression level “p3e”, write an MD5 checksum, and afterwards verify the encoded file:

Takc -e -p3e -md5 -v input.wav output.tak

Examples decoding TAK with pipe to .mp3/.opus/.flac/.wv:

Takc.exe -d input.tak - | lame.exe -V 6 - output.mp3
Takc.exe -d input.tak - | opusenc.exe --bitrate 64 - output.opus
Takc.exe -d input.tak - | flac.exe -8 - -o output.flac
Takc.exe -d input.tak - | wavpack.exe -hhx - output.wv

Examples encoding TAK from FLAC, WavPack resp. arbitrary ffmpeg-supported (16-bit) format:

flac.exe -dc input.flac | Takc.exe -e -p1e - output.tak
wvunpack.exe input.wv - | Takc.exe -e -p4m - output.tak
ffmpeg.exe -i input.xxx -f wav - | Takc.exe -e -p0 -ihs - output.tak

Using TAK in other applications

Ripping CDs to TAK with Exact Audio Copy

wiki guide details how to rip CDs to TAK with EAC.

Playing and converting to/from TAK with foobar2000

For decoding, use the foo_input_tak component (current version using the 2.3.1 decoding library).

For encoding:

• Select files, right-click, select Convert and the “...”
• Under Output format, click Add New and set it up as shown below (note: replace -p2 with the desired compression level).
• Upon first conversion, foobar2000 will ask you to navigate to locate Takc.exe .

Screenshot of foobar 0.9.5 Converter settings for TAK 1.0.3 choosing -p2 compression level.

TAK in CUETools

CUETools supports TAK out of the box if Takc.exe is in your PATH - or if a copy of Takc.exe is in in the CUETools folder. Otherwise, one has to give the path to the exe in Settings, under the Encoders tab and the Decoders tab, for each profile (or edit the settings file). Due to TAK not supporting Unicode, consider the "Force ANSI filenames" checkbox and make sure that also directory names are ANSI.

Links

• [1] – Official Website (German)
• TAK 2.3.1 Discussion Thread on HA
• TAK 2.3.0 Discussion Thread on HA
• TAK 2.2.0 Discussion Thread on HA
• HA thread where name change from Yet another lossless audio compressor was brainstormed and announced
• First HA discussion thread
• HA Wiki's Lossless Codec Comparison originally by Rjamorim
• [2] Martijn van Beurden's lossless performance tests.