Answer:
The left hemisphere Right hemisphere
Explanation:
The left hemisphere is a superior part of the processing of the auditory part of the brain. For example, people when hearing a song and one-syllable "da" and "ba" is there. People recognize that they only have the right syllable that processed in the left hemisphere. Many studies reveal that our brain left hemisphere processed the auditory speech very rapidly.
The nerve cells related to the auditory speech, more synapses found in the left hemisphere than the right hemisphere. Thus Dex dog commands his dog, his dog processed this information in the left hemisphere. Dex itself processed his tone of voice in his right hemisphere.