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Ogg Speex Audio Format - loc.gov
https://www.loc.gov/preservation/digital/formats/fdd/fdd000260.shtml#:~:text=Identification%20and%20description%20%20%20Full%20name%20,Ogg%20File%20Format%20%202%20more%20rows%20
Ogg Speex Audio Format - loc.gov
https://www.loc.gov/preservation/digital/formats/fdd/fdd000260.shtml
Speex: a free codec for free speech
Speex is an Open Source/Free Software patent-free audio compression format designed for speech. The Speex Project 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.
Formats and standards - speex.org
https://speex.org/docs/manual/speex-manual/node8.html
Speex Audio Codec, Version 1.2
https://www.loc.gov/preservation/digital/formats/fdd/fdd000259.shtml
Format Description for SPX_1_2 -- Speech codec designed for packet networks and voice over IP (VoIP) application but not for mobile phones. File-based compression is also supported. The flexible codec is based on Code Excited Linear Prediction (CELP) and supports a wide range of speech quality and bit-rates.
What is SPX? SPX Audio File Format Description
https://www.coolutils.com/Formats/SPX
Speex is an Open Source/Free Software patent-free audio compression format specially designed for speech. It is based on CELP and is designed to compress voice at bitrates ranging from 2 to 44 kbps. Speex provides a free alternative to expensive proprietary speech codecs thus lowering the barrier of entry for voice applications.
speex,speex audio format,speex converter - ease audio ...
http://easeaudioconverter.com/speex.htm
speex audio format: 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.
Speex Converter: Convert Speex to MP3, FLAC, WAV, WMA, AIFF
https://www.cicever.com/audios/speex-converter.html
Convert Speex to MP3, WAV, FLAC, AIFF, M4A, WMA, AAC etc. Speex Converter for Windows and Mac. Step 1 Import Speex Audio to Speex Converter. Click “Add File” button to load Speex audios. Step 2 Choose the Output Format. Click “Profile” drop down button and choose the format you want. Step 3 Convert ...
What is SPX File and How to Open It Easily
https://www.videoconverterfactory.com/tips/spx-file.html
Speex is an Open Source/Free Software patent-free audio compression format designed for speech, and the audio file is saved in the .spx extension. But now, the Speex codec is deprecated and has been replaced by the superior Opus codec. However, if you still have some audio files with an .spx extension, there are a few media players that can directly open and play …
SPX File Extension - What is an .spx file and how do I ...
https://fileinfo.com/extension/spx
An SPX file is an audio file saved in the Ogg Vorbis container format and encoded with the Speex Audio codec. It supports voice compression at 2 to 44 kbps and supports 8 kHz, 16 kHz, and 32 kHz compression in the same bitstream.
ios - How to record speex format audio file? - Stack …
https://stackoverflow.com/questions/22761082/how-to-record-speex-format-audio-file
For OGG Speex audio Recording, I once used this library OGGSpeex. If u need further info for implementing it or anything else feel free to ask.. To Really reduce the size of audio recording you can use AudioFormat : MPEG4AAC which creates a 135KB file for 60 seconds recording.. Sure.. Code for AAC Recording
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