Mark TellezMark Tellez

Automatic Speech Recognition: Building Advanced Speech-to-Text Systems

My expertise in Automatic Speech Recognition (ASR) spans from implementing state-of-the-art models to developing custom solutions for specialized domains. I've built systems that achieve exceptional accuracy across diverse accents, languages, and acoustic environments, delivering reliable speech-to-text capabilities for critical applications.

Technical Expertise and Innovation

My approach to ASR combines cutting-edge deep learning techniques with practical engineering solutions. At VoxBird AI, I implemented sophisticated speech recognition systems that worked in tandem with our voice synthesis technology, creating a comprehensive audio AI ecosystem. This experience has given me deep insights into the challenges and opportunities in modern speech recognition.

Key Capabilities

Implementation of OpenAI's Whisper and other state-of-the-art ASR models
Fine-tuning ASR models for specialized domains and industry-specific terminology
Building real-time transcription systems with low latency for interactive applications
Developing multilingual ASR solutions supporting English, Spanish, and other languages
Creating custom audio preprocessing pipelines for noise reduction and signal enhancement

Open-Source ASR Technologies

I have extensive experience with leading open-source ASR frameworks and models, allowing me to build cost-effective solutions that don't compromise on quality:

OpenAI Whisper

Implementing and fine-tuning Whisper models for robust transcription across diverse acoustic environments and languages with exceptional accuracy.

Mozilla DeepSpeech

Building speech recognition systems using TensorFlow-based DeepSpeech for applications requiring on-device processing and privacy-focused solutions.

Kaldi ASR

Leveraging the flexibility of Kaldi for specialized ASR applications requiring custom acoustic and language models with fine-grained control.

Real-World Applications

My ASR implementations have powered a variety of practical applications across different industries:

  • Automated transcription systems for meeting notes and interviews
  • Voice-controlled interfaces for applications and smart devices
  • Accessibility tools for hearing-impaired users
  • Content analysis systems for audio and video archives

Integration with Voice Synthesis

My experience with both voice synthesis and speech recognition has allowed me to build comprehensive voice AI systems. At VoxBird AI, I developed integrated solutions where ASR and TTS technologies worked together seamlessly, creating natural voice interfaces for applications ranging from virtual assistants to interactive voice response systems.

This dual expertise enables me to understand the complete voice technology pipeline, from capturing and processing speech to generating natural-sounding responses, resulting in more cohesive and effective voice-based applications.

Technical Implementation Approach

My implementation strategy for ASR systems focuses on balancing accuracy, performance, and practical usability:

  • Model selection based on specific use case requirements and constraints
  • Custom dataset creation for domain-specific vocabulary and terminology
  • Optimization for deployment environments (cloud, edge, or on-device)
  • Integration with post-processing pipelines for enhanced accuracy

Let's Build Your Next Speech Recognition Solution

Looking for an expert who can implement reliable, high-accuracy speech recognition for your application? I'm ready to help you develop custom ASR solutions that meet your specific requirements and integrate seamlessly with your existing systems.