Convert THD to M4A

THD to M4A Converter converts THD files to M4A. The software is an ALL-IN-ONE audio converter that supports more than 110 audio and video files.

THD to M4A Converter supports batch conversion and is full compatible with Windows 10/8/7/Vista/XP/2000.

1. Free Download THD to M4A Converter and then install the software by instructions
2. Launch THD to M4A Converter
3. Choose THD Files


Click on "Add Files" button to choose THD files and add them to conversion list.


Choose one or more THD files you want to convert and then click Open.


4. Choose "to M4A"




5. Convert THD to M4A


Click on button "Convert" to convert THD files to M4A format.


Alternatively, you could click "Convert to One" to convert and combine/join/merge multiple THD files to one M4A.


The software is converting THD files to M4A format.


6. Play & Browse


Right-click converted item and choose "Play Destination" to play the destination file, choose "Browse Destination Folder" to open Windows Explorer to browse the destination file.


7. Done

Free Download THD to M4A Converter

What is THD?
Dolby TrueHD, it is an advanced lossless multi-channel audio codec developed by Dolby Laboratories which is intended primarily for high-definition home-entertainment equipment such as Blu-ray Disc and HD DVD. It is the successor to the AC-3 Dolby Digital surround sound codec which was used as the audio standard for DVD discs. In this application, Dolby TrueHD competes with DTS-HD Master Audio, another lossless codec from Digital Theater System.

Dolby TrueHD uses Meridian Lossless Packing (MLP) as its mathematical basis for compressing audio samples. MLP was used on the earlier DVD-Audio format, but details of Dolby TrueHD and DVD-Audio differ substantially. A Dolby TrueHD bitstream can carry up to 14 discrete sound channels. Sample depths up to 24 bits/sample and audio sample rates up to 192 kHz are supported. Like the more common legacy codec Dolby Digital, Dolby TrueHD bitstreams carry program metadata. Metadata is separate from the coding format and compressed audio samples, but stores relevant information about the audio waveform. For example, dialog normalization and Dynamic range compression are controlled by metadata embedded in the TrueHD bitstream.

In the Blu-ray specification, Dolby TrueHD is an optional codec. Dolby TrueHD audiotracks may carry up to 24 bit audio in up to 8 discrete audio channels at 96 kHz or up to 2 channels at 192 kHz. The maximum encoded bitrate is 18 Mbit/s (the same as the uncompressed rate). Since TrueHD is an optional codec, a separate (primary) AC-3 audiotrack must be present on Blu-ray discs that contain a TrueHD track.

What is M4A?
M4A stands for MPEG 4 Audio. Since MPEG-4 Part 14 is a container format, MPEG-4 files may contain any number of audio, video, and even subtitle streams, making it impossible to determine the type of streams in an MPEG-4 file based on its filename extension alone. In response, Apple Inc. started using and popularizing the .m4a file extension. Software capable of audio/video playback should recognize files with either .m4a or .mp4 file extensions, as would be expected, as there are no file format differences between the two. Most software capable of creating MPEG-4 audio will allow the user to choose the filename extension of the created MPEG-4 files.

Because of its exceptional performance and quality, Advanced Audio Coding (AAC) is at the core of the MPEG-4, 3GPP and 3GPP2 specifications and is the audio codec of choice for Internet, wireless and digital broadcast arenas. AAC provides audio encoding that compresses much more efficiently than older formats, such as MP3, yet delivers quality rivaling that of uncompressed CD audio.

Convert THD to M4A Related Topics: NSV to M4A, MPP to M4A, F4V to M4A, VMD to M4A, TS to M4A, M4V to M4A, MPE to M4A, NSA to M4A, DXA to M4A, MTS to M4A, OGM to M4A, H264 to M4A, SOL to M4A, GXF to M4A, M2TS to M4A, EVOB to M4A, M2T to M4A, MTV to M4A, EVO to M4A, XA to M4A, DVR-MS to M4A, M1V to M4A, KAR to M4A, SDP to M4A, F4A to M4A, NUT to M4A, OGX to M4A, QCP to M4A, MLP to M4A, MJ2 to M4A, DIVX to M4A, SMK to M4A, ALAC to M4A, VID to M4A, ULAW to M4A, M4R to M4A, NUV to M4A, THD to M4A, MXF to M4A, ROQ to M4A