Usage patterns
〈物〉の音声が聞こえるto be able to hear the audio/sound of something
I can't hear the TV's audio.
音声を消すto mute the audio/sound
Please mute your audio during the meeting.
音声で〈事〉を案内するto announce/guide something by voice
The train's arrival is announced by voice.
音声を認識するto recognize speech/voice
This system recognizes speech and converts it into text.