13. A system, comprising: at least one processor; a memory device including instructions operable to be executed by the at least one processor to configure the system to: receive audio data; identify a first representation of a first finite state transducer (FST) for automatic speech recognition (ASR), the FST configured to be traversed using input words and to output words, the first representation including: a first table representing states of the first FST, the first table including a first record representing a first state, the first record comprising: a first representation of a weight of the first state, and a reference to a second record in a second table, the second record representing a first arc; the second table representing arcs of the first FST, the second table including the second record, the second record comprising: a second representation of a weight of the first arc, a 12 bit representation of the weight of the first arc, a third representation of an input/output label pair, and an identifier of a destination state of the first arc; and identify a second representation of a second FST, wherein the second FST is an FST configured to be traversed using acoustic unit data and to output words; load the first representation of the first FST into a memory; load the second representation of the second FST into the memory; perform ASR on a first portion of the audio data using the first record and the second record; determine an output label using the third representation of the input/output label pair; and determine ASR output using the output label.
13. A system, comprising: at least one processor; a memory device including instructions operable to be executed by the at least one processor to configure the system to: receive audio data; identify a first representation of a first finite state transducer (FST) for automatic speech recognition (ASR), the FST configured to be traversed using input words and to output words, the first representation including: a first table representing states of the first FST, the first table including a first record representing a first state, the first record comprising: a first representation of a weight of the first state, and a reference to a second record in a second table, the second record representing a first arc; the second table representing arcs of the first FST, the second table including the second record, the second record comprising: a second representation of a weight of the first arc, a 12 bit representation of the weight of the first arc, a third representation of an input/output label pair, and an identifier of a destination state of the first arc; and identify a second representation of a second FST, wherein the second FST is an FST configured to be traversed using acoustic unit data and to output words; load the first representation of the first FST into a memory; load the second representation of the second FST into the memory; perform ASR on a first portion of the audio data using the first record and the second record; determine an output label using the third representation of the input/output label pair; and determine ASR output using the output label. 15. The system of claim 13 , wherein the memory device further comprises instructions that further configure the system to load the 12 bit representation of the weight of the first state into memory after receiving the indication but prior to receiving the audio data.