Transcoder test method
AssigneeMotorola, Inc.
InventorMayank Kapadia
Life of this patent
Estimating the term…
Abstract
A method of testing a speech transcoder is provided for testing a speech transcoder including at least a speech decoder module connected to a PCM format conversion module where the method of testing includes inputting a standard input vector into an input of the decoder module and outputting a reference vector from the PCM format conversion module. In an alternate embodiment, the method of testing a speech transcoder having a first PCM format conversion module connected to a speech coder module includes inputting a reference vector into the first PCM format conversion module and outputting a new vector from the speech coder that is equivalent to standard speech coder output or equivalent to a vector that was generated by inputting standard speech coder input into a combination of two PCM conversion modules and a reference speech coder.
Claims7
A method of testing a speech transcoder including at least a speech decoder module connected to a PCM format conversion module, the method of testing comprising the steps of:
- inputting a standard input vector into an input of the decoder module;
- and
- outputting a reference vector from the PCM format conversion module.
A method of testing a speech transcoder including a first PCM format conversion module connected to a speech coder module, the method comprising the steps of:
- inputting a reference vector into the first PCM format conversion module;
- and
- outputting a new vector from the speech coder that is equivalent to standard speech coder output or equivalent to a vector that was generated by inputting standard speech coder input into a combination of two PCM conversion modules and a reference speech coder.
A method of testing a speech transcoder including at least a speech decoder module connected to a first PCM format conversion module and a second PCM format conversion module connected to a speech coder module, the method of testing comprising the steps of:
- inputting a standard input vector into an input of the decoder module;
- outputting a reference vector from the first PCM format conversion module, while simultaneously;
- inputting a second reference vector into the second PCM format conversion module;
- and
- outputting a new vector from the speech coder that is equivalent to standard speech coder output or equivalent to a vector that was generated by inputting standard speech coder input into a combination of two PCM conversion modules and a reference speech coder.
The method of any of the above claims wherein the PCM format conversion modules are either a linear to Alaw PCM conversion module or a Alaw to linear PCM conversion module.
Dependencies are inferred from the claim text.