Convert ADX to SPX (Speex)

FLV MP3 Converter converts ADX to SPX (Speex) easily and quickly. Speex is an Open Source/Free codec patent-free audio compression format designed for speech. The Speex codec aims to lower the barrier of entry for voice applications by providing a free alternative to expensive proprietary speech codecs. Moreover, Speex is well-adapted to Internet applications and provides useful features that are not present in most other codecs.

FLV MP3 Converter is also a professional audio conversion software. The software supports almost any video and audio formats such as MKA, AAC for iPod/iPhone/iPad/iTunes/DSi, CAF (Core Audio Format), MP2, MPA, AIFF, SPX, MMF, ALAC (Apple Lossless), AMR, etc. It could convert FLAC to OGG, M4A to WMA, AMR to M4B (MPEG-4 audiobook), MKV to AC3, MKA to CAF (Core Audio Format), MOV to AC3, QCP to SPX, DVD to AIFF, and so on.

FLV MP3 Converter supports batch conversion and, is full compatible with 32-bit and 64-bit editions of Vista and Windows 7.

What is ADX?
ADX is a lossy proprietary audio storage and compression format developed by CRI Middleware specifically for use in video games, it is derived from ADPCM. Its most notable feature is a looping function that has proved useful for background music in various games that have adopted the format, such as the Dreamcast and later generation Sonic the Hedgehog games from SEGA, as well as many PlayStation 2 and GameCube games. There is also a sibling format, AHX, which uses a variant of MPEG-2 audio and is intended specifically for voice recordings. A packaging archive, AFS, is also included for bundling individual ADX and AHX files into a single container.

What is SPX?
Speex is a patent-free audio compression format designed for speech and also a free software speech codec that may be used on VoIP applications and podcasts. It is based on the CELP speech coding algorithm. Speex claims to be free of any patent restrictions and is licensed under the revised (3-clause) BSD license. It may be used with the Ogg container format or directly transmitted over UDP/RTP. The Speex designers see their project as complementary to the Vorbis general-purpose audio compression project. Speex is a lossy format, meaning quality is permanently degraded to reduce file size. Speex is based on CELP and is designed to compress voice at bitrates ranging from 2 to 44 kbps. Some of Speex's features include:

• Narrowband (8 kHz), wideband (16 kHz), and ultra-wideband (32 kHz) compression in the same bitstream
• Intensity stereo encoding
• Packet loss concealment
• Variable bitrate operation (VBR)
• Voice Activity Detection (VAD)
• Discontinuous Transmission (DTX)
• Fixed-point port
• Acoustic echo canceller
• Noise suppression

Note that Speex has a number of features that are not present in other codecs, such as intensity stereo encoding, integration of multiple sampling rates in the same bitstream (embedded coding), and a VBR mode.

Step-by-Step Instructions to Convert ADX to SPX (Speex):

1. Click Here to Download FLV MP3 Converter
2. Install the Software by Instructions
3. Launch FLV MP3 Converter by Clicking Start -> All Programs -> FLV MP3 Converter -> FLV MP3 Converter
4. Choose ADX Files


Click "Add Files" to choose ADX files.


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

FLV MP3 Converter will open ADX files and get file information of the file such as duration, bit rate, sample rate, and channels, and then show the information of ADX file at conversion list.



5. Choose Output Format


Choose "to SPX (Speex)" at Output Format combo-box.


6. [Optional, for advanced user] Set SPX Encoding Parameters


If you want to change SPX encoding parameters such as bit rate, sample rate, channels, or volume, please click "Options".


And then, switch to tab "Audio" and choose "SPX (Speex) (*.spx)" at "Output Format", and then set encoding parameters.


7. Convert ADX to SPX (Speex)


Click "Convert" to convert ADX files to SPX (Speex).


FLV MP3 Converter is converting ADX files to SPX (Speex).


8. Play and Browse SPX File


When conversion completes, you can right-click converted item and choose "Play Destination" to play the outputted SPX file; or choose "Browse Destination Folder" to open Windows Explorer to browse the outputted SPX file.


9. Done

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ADX to SPX Conversion Software is 100% clean and safe to install. It's certified by major download sites.

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