Loquendo ASR Tuning Tools provides users with a suite of tuning tools that automatically analyze data collected in the field to improve service performance, including: Phonetic Learning, able to improve speech recognition grammars by automatically analyzing application data to identify frequently-used formulations that have not been covered, as well as additional pronunciation variants; Acoustic Model Adaptation, which uses audio material recorded in the field (environment, speaker, channel adaptation) to further enhance recognition performance where a voice application is used in a particular context.