This paper presents the development of speech recognition platform, which main area of use is the evaluation of different new and improved algorithms for speech recognition (noise reduction, feature extraction, language model generation, training of acoustic models, ...). To enable wide use of the platform, different test configurations were added - from alphabet spelling to large vocabulary continuous speech recognition. At the moment, the speech recognition platform was implemented and evaluated with a studio (SNABI) and a fixed telephone (SpeechDat(II)) speech database.