Authors :
Harikaran G.; Vishwash C.; Pavan Kumar Reddy; Sudha S.; Samson Swaroop Paturi; Bharani Kumar Depuru
Volume/Issue :
Volume 10 - 2025, Issue 12 - December
Google Scholar :
https://tinyurl.com/2ns6ujad
Scribd :
https://tinyurl.com/nd3zx9z5
DOI :
https://doi.org/10.38124/ijisrt/25dec1539
Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.
Abstract :
The evaluation and enhancement of sales communication skills represent a critical yet challenging aspect of
corporate training and development. Traditional methods, which rely on manual observation and subjective feedback, are
often inconsistent, time-consuming, and difficult to scale across large sales teams. This research presents an advanced, AI-
driven system designed to automate the analysis of sales pitches and provide objective, data-driven recommendations for
performance improvement. Our system integrates a suite of sophisticated, self-hosted machine learning models to perform
comprehensive speech and behavioral analysis, ensuring data privacy and operational independence from third-party
APIs. Key components include a high-accuracy Speech-to-Text (STT) engine based on OpenAI's Whisper model for
transcription, a deep learning model for nuanced tone and emotion recognition, and algorithmic detectors for identifying
speech patterns such as pause frequency, filler word usage, and speaking pace. The system evaluates sales pitches against a
robust set of performance metrics, benchmarking individual performance against data from top-quartile
sales professionals. It then generates a detailed report with quantitative scores and qualitative, actionable feedback
tailored to the individual. The core contributions of this work include: (1) a fully automated pipeline for multi-modal
analysis of sales communications using self-hosted models; (2) a novel scoring mechanism that correlates speech analytics
with successful sales outcomes; and (3) a dual-mode recommendation engine that provides both automated improvement
plans and a flexible, user-driven interface for manual exploration. Our evaluation demonstrates that the system achieves
high accuracy in its analytical components and that its recommendations correlate strongly with performance
improvements observed in real-world scenarios. This technology offers a transformative solution for scaling personalized
sales coaching, accelerating employee onboarding, and fostering a culture of continuous, data-informed improvement.
References :
- Bauman, K. (2019). Automated Speech Recognition: Performance Metrics and Applications. IEEE Transactions on Audio, Speech, and Language Processing, 27(11), 1892-1903.
https://doi.org/10.1109/TASLP.2019.2931221
- Radford, A., et al. (2022). Robust Speech Recognition via Large-Scale Weak Supervision. OpenAI.
https://cdn.openai.com/papers/whisper.pdf
- Busso, C., Bulut, M., Lee, C. M., Kazemzadeh, A., Mower, E., Kim, S., ... & Narayanan, S. S. (2008). IEMOCAP: Interactive emotional dyadic motion capture database. Language Resources and Evaluation, 42(4), 335–359.
https://doi.org/10.1007/s10579-008-9076-6
- Fayek, H. M., Lech, M., & Cavedon, L. (2017). Evaluating deep learning architectures for Speech Emotion Recognition. Neural Networks, 92, 60-68.
https://doi.org/10.1016/j.neunet.2017.02.013
- Ramakrishna, A., Malandrakis, N., & Narayanan, S. (2017). An NLP framework for modeling job interview dialogue dynamics. Proceedings of the 55th Annual Meeting of the Association for Computational Linguistics (Volume 1), 844-854.
https://aclanthology.org/P17-1078/
- Weninger, F., Eyben, F., Schuller, B. (2013). On-line continuous-time music mood regression with deep recurrent neural networks. In Proceedings of ICASSP, 5412–5416.
https://doi.org/10.1109/ICASSP.2013.6638473
- Ko, T., Peddinti, V., Povey, D., & Khudanpur, S. (2015). Audio augmentation for speech recognition. In Proceedings of INTERSPEECH, 3586–3589.
https://www.danielpovey.com/files/2015_interspeech_augmentation.pdf
- Nguyen, T. T., Nguyen, T. T., & Vu, N. T. (2021). Enhancing Whisper ASR for Domain-Specific Jargon Using Transfer Learning. arXiv preprint.
https://arxiv.org/abs/2105.11063
- Kim, J., Lee, S., & Provost, E. M. (2013). Deep Learning for Robust Feature Generation in Audiovisual Emotion Recognition. In ICASSP 2013, 3687-3691.
https://doi.org/10.1109/ICASSP.2013.6638289
- Chen, L., Mao, X., Xue, Y., & Cheng, L. (2012). Speech emotion recognition: Features and classification models. Digital Signal Processing, 22(6), 1154–1160.
https://doi.org/10.1016/j.dsp.2012.05.007
- D’Mello, S. K., & Kory, J. (2015). A Review and Meta-Analysis of Multimodal Affect Detection Systems. ACM Computing Surveys, 47(3), 43.
https://doi.org/10.1145/2682899
The evaluation and enhancement of sales communication skills represent a critical yet challenging aspect of
corporate training and development. Traditional methods, which rely on manual observation and subjective feedback, are
often inconsistent, time-consuming, and difficult to scale across large sales teams. This research presents an advanced, AI-
driven system designed to automate the analysis of sales pitches and provide objective, data-driven recommendations for
performance improvement. Our system integrates a suite of sophisticated, self-hosted machine learning models to perform
comprehensive speech and behavioral analysis, ensuring data privacy and operational independence from third-party
APIs. Key components include a high-accuracy Speech-to-Text (STT) engine based on OpenAI's Whisper model for
transcription, a deep learning model for nuanced tone and emotion recognition, and algorithmic detectors for identifying
speech patterns such as pause frequency, filler word usage, and speaking pace. The system evaluates sales pitches against a
robust set of performance metrics, benchmarking individual performance against data from top-quartile
sales professionals. It then generates a detailed report with quantitative scores and qualitative, actionable feedback
tailored to the individual. The core contributions of this work include: (1) a fully automated pipeline for multi-modal
analysis of sales communications using self-hosted models; (2) a novel scoring mechanism that correlates speech analytics
with successful sales outcomes; and (3) a dual-mode recommendation engine that provides both automated improvement
plans and a flexible, user-driven interface for manual exploration. Our evaluation demonstrates that the system achieves
high accuracy in its analytical components and that its recommendations correlate strongly with performance
improvements observed in real-world scenarios. This technology offers a transformative solution for scaling personalized
sales coaching, accelerating employee onboarding, and fostering a culture of continuous, data-informed improvement.