G.711 codec for pc download

Package contents Read about the SDK package contents. On-line manual Read our on-line manual on VoIP technologies. Developers guide Read our developers guide on using the SDK.

Softphone development Read about VoIP softphone development. Webphone development Read about VoIP webphone development. Course 1 How to develop a softphone in C. Request support Request technical support. On-line chat Ask for live help. E-mail Write us an email. Telephone Contact us on phone. Office address Office location. Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems.

If something happens to a shared AX file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when gcodc.

Some of the most common gcodc. Your gcodc. Furthermore, gcodc. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly. If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your gcodc.

These troubleshooting steps are listed in the recommended order of execution. System File Checker is a utility included with every Windows version that allows you scan and restore corrupted system files. Use the SFC tool to fix missing or corrupt gcodc. When the first two steps haven't solved your issue, it might be a good idea to run Windows Update.

Many gcodc. To run Windows Update, please follow these easy steps:. If Windows Update failed to resolve the gcodc. Please note that this final step is recommended for advanced PC users only. If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach Note: Not recommended for amateur PC users by downloading and replacing your appropriate gcodc.

Please follow the steps below to download and properly replace you file:. If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process.

If you are not currently backing up your data, you need to do so immediately. Microsoft typically does not release Windows AX files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing gcodc.

An incorrectly installed AX file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution. You are downloading trial software. The Encode overloads:. The last takes an array of bytes in Little-Endian order. Thus, it is special, and gets to be displayed. By default, this trap is disabled. Normally, the zero trap is a boolean, but here, there is no need. Since the unsigned PCM value maps to 0x00, we know that if the table reads 0x00, the zero trap is off.

When the zero trap is assigned, the program will go through the table and assign either 0x00 or 0x02 to all of the places that map to 0x00 normally. These are the values in the range [, ]. In yet another major surprise, this is done in the MuLawDecoder class.

This uses the same table lookup technique as the above, but has an array of type short , since the values are bit signed PCM values. The out parameters are used because otherwise there would be no way to separate the two MuLawDecode functions that both take a byte array.

And again, the Little-Endian byte order is displayed. The implementations are even worse in terms of commenting, so this took a bit longer to figure out.

There is no zero trap, and the ALawEncode overloads are identical to the MuLawEncode overloads, so the only difference is the encode short i method, and that the MAX is 0x7fff instead of 0x7fff-0x84 like in MuLawEncoder. Even this has only subtle differences. The mask, lack of bias, and the zero exponent weirdness are the key differences. The only difference between this and MuLawDecoder is the decode short i method. The program included in the source package runs the ALawEncoder and MuLawEncoder on a random series of data, and averages the percent errors.

It then displays the average errors for each codec for the full range. I hope this is useful. After all, G. At 8KHz sampling, that turns a Kbps stream into a 64Kbps stream. This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves.

If in doubt please contact the author via the discussion board below. Sign in Email. Forgot your password? Search within: Articles Quick Answers Messages. Tagged as. Stats K views. Using the G standard.

Marc Sweetgall Rate me:. Please Sign up or sign in to vote. Download source files - 8. The Code The project is arranged into five C files. Copy Code. A list of licenses authors might use can be found here. Marc Sweetgall. J provided a good stepping stone into.

NET, and now he uses primarily Java and C. Member Jan Parhs Jul Member Apr Andreas Niedermair 2-Jan Member 1-Sep Adam Tauno Williams Aug LiorO Feb KenLars99 7-Jun Marc Sweetgall Jun Go to top. Layout: fixed fluid. United States. First Prev Next. Marc you saved my life Member May Member Thanks a lot for this nice piece of code. NAudio just doesn't work well with Unity piece of crap and NSpeex was a good choice very high compression rate, 4 times powerful than muLaw but unfortunately was very slow and sometimes threw exceptions at random.