v1.4.0

What's Changed

• Create and integrate AudioTracer by @pragmatrix in #46
• Prefix audio trace files with the current timestamp by @pragmatrix in #47
• Speech gate by @pragmatrix in #48
• Support recognizing from wav files in azure-transcribe, make speech g… by @pragmatrix in #49

Full Changelog: v1.2.0...v1.4.0