Voice Analytics Coach

Voice Analytics Coach (Python + GCP)

We built a voice analytics platform that listens to sales and support calls at scale, turning raw audio into actionable coaching signals. Every conversation is transcribed, analyzed, and summarized so leaders can focus on high-impact calls instead of sampling a tiny fraction of the queue.

Using diarization, ASR, sentiment, and intent tagging, the system detects objections, risk phrases, compliance issues, and coaching moments. Recommendations are pushed directly into the CRM timeline, where reps already work.

Diarization & ASR Sentiment & emotions Intent & topic tagging Coaching tips in CRM
Impact at a glance

80%+

Calls auto-scored

−60%

QA review time

↑ CSAT

Better customer experience

↑ Win rate

Guided sales conversations

Quality teams get full coverage on conversations, while managers and reps receive focused insights: which calls to listen to, what went well, and where to improve.

Problem

Traditional QA and coaching had clear limitations:

  • Only a small % of calls were manually reviewed.
  • Feedback was slow, subjective, and inconsistent.
  • Critical moments (churn risk, upsell signals) were easy to miss.
Solution

We introduced an AI-first voice analytics layer:

  • Automatic speech-to-text and speaker diarization for all calls.
  • Sentiment and “emotional curve” across the conversation timeline.
  • Intent, topic, and objection tagging with QA scorecards.
  • Short summaries and next-best-action hints for reps.
Outcome

The Voice Analytics Coach delivered:

  • Richer, data-backed coaching for every rep, not just top/bottom performers.
  • Earlier detection of churn risk and compliance issues.
  • Stronger alignment between QA, RevOps, and frontline teams.

Architecture overview

The platform ingests call recordings from the telephony stack, runs analysis in a Python + GCP pipeline, and pushes results back into the CRM and QA tools that teams already use.

  • Ingestion – Call recordings and metadata (agent, customer, queue, outcome) are streamed or batch-synced from the dialer/contact center platform.
  • Diarization & ASR – GCP-based speech-to-text and speaker diarization split the call into speaker turns with accurate transcripts.
  • NLU & analytics – Python services run sentiment, intent, topic, and risk phrase detection, plus talk ratios, dead-air, and interruption metrics.
  • Summaries & scoring – Each call gets a high-level summary, key moments, QA score, and recommended coaching callouts.
  • CRM & QA integration – Results are written back to the CRM timeline, QA dashboards, and analytics warehouse for reporting.
Key features in production
Full-call visibility

Every call gets transcribed and scored automatically, so QA and managers are no longer blind to the “middle of the pack”.

Rep-friendly insights

Instead of generic feedback, reps see concrete examples – timestamps where they interrupted, missed a buying signal, or handled an objection well.

Risk & compliance flags

The system highlights calls with aggressive sentiment, cancellation language, or missing required disclosures, helping compliance and retention teams react quickly.

Team & playbook analytics

Aggregated reports show which talk tracks correlate with higher CSAT, better NPS, and stronger win rates across teams and segments.

The architecture is built to extend: new languages, new sentiment models, or new CRM fields can be added without changing the core ingestion and scoring pipeline.

AI & speech capabilities
  • Automatic speech recognition (ASR) on multi-speaker calls.
  • Speaker diarization and turn-taking analysis.
  • Sentiment and emotion trajectory over the call.
  • Intent, topic, and keyword/phrase spotting for QA rules.
Engineering & data platform
  • Python microservices orchestrating ASR, NLU, and scoring.
  • GCP speech APIs and data storage for scalable processing.
  • Event-driven ingestion from telephony and contact-center tools.
  • Exports to CRM, QA dashboards, and analytics warehouse.
Typical use cases
  • Sales teams analyzing discovery, demo, and negotiation calls.
  • Support and success teams monitoring churn-risk conversations.
  • Contact centers scaling QA reviews across large call volumes.
  • Any organization that wants coaching insights surfaced from voice, not just text.