13. A system for processing acoustic data in accordance with a speech recognition system, the system comprising: at least one memory for storing executable instructions; at least one processor programmed by the executable instructions to: record acoustic data in at least one recording medium; detect, at a first time, an indication to start speech recognition processing, the first time corresponding to a first location of the recorded acoustic data recorded in the at least one recording medium; determine whether the acoustic data recorded at the first time at which the indication to start speech recognition processing was detected is likely to be in a silence region or a speech region; if it is determined that the acoustic data recorded at the first time is likely to be in a speech region, analyze at least some of the recorded acoustic data before the first location to determine a starting location for speech recognition processing; and if it is determined that the acoustic data recorded at the first time is likely to be in a silence region, analyze the recorded acoustic data only after the first location to determine a starting location for speech recognition processing.
13. A system for processing acoustic data in accordance with a speech recognition system, the system comprising: at least one memory for storing executable instructions; at least one processor programmed by the executable instructions to: record acoustic data in at least one recording medium; detect, at a first time, an indication to start speech recognition processing, the first time corresponding to a first location of the recorded acoustic data recorded in the at least one recording medium; determine whether the acoustic data recorded at the first time at which the indication to start speech recognition processing was detected is likely to be in a silence region or a speech region; if it is determined that the acoustic data recorded at the first time is likely to be in a speech region, analyze at least some of the recorded acoustic data before the first location to determine a starting location for speech recognition processing; and if it is determined that the acoustic data recorded at the first time is likely to be in a silence region, analyze the recorded acoustic data only after the first location to determine a starting location for speech recognition processing. 14. The system of claim 13 , wherein the at least one processor is further programmed to: start speech recognition processing of the recorded acoustic data at the first location without accessing the recorded acoustic data before the first location to determine a starting location for speech recognition processing, when it is determined that the acoustic data recorded at the first time is likely to be in a silence region.