User-perceived latency while maintaining accuracy

A system for speech recognition, the system comprising:

• a processor;
• and
• a computer-readable medium storing instructions that are operative upon execution by the processor to:
• receive an audio stream, in parallel, by a primary speech recognition engine (SRE) and a secondary SRE;
• generate, with the primary SRE, a primary result;
• generate, with the secondary SRE, a secondary result;
• append the secondary result to a word list;
• and
• merge the primary result into the secondary result in the word list, wherein the merging comprises:
• synchronizing the primary result with the secondary result;
• determining, within the primary result or the secondary result, whether at least some words belong to a class model;
• based on at least the synchronizing, determining a word in the primary result that corresponds with a corresponding word in the secondary result;
• and
• based on at least determining that the corresponding word in the secondary result does not belong to a class model, replacing the corresponding word in the secondary result with the word in the primary result.

A computing device having computer-executable instructions stored thereon, which, on execution by a computer, cause the computer to perform operations comprising:

• receiving an audio stream by a secondary speech recognition engine (SRE) on the computing device;
• transmitting the audio stream to a remote node for processing by a primary SRE;
• receiving, from the remote node, a primary result;
• generating, with the secondary SRE, a secondary result;
• appending the secondary result to a word list;
• and
• merging the primary result into the secondary result in the word list, wherein the merging comprises:
• synchronizing the primary result with the secondary result;
• determining, within the primary result or the secondary result, whether at least some words belong to a class model;
• based on at least the synchronizing, determining a word in the primary result that corresponds with a corresponding word in the secondary result;
• and
• based on at least determining that the corresponding word in the secondary result does not belong to a class model, replacing the corresponding word in the secondary result with the word in the primary result.