# Transcription Speed Analysis: Garchen Rinpoche

**URL:** <https://forum.webuddhist.com/t/transcription-speed-analysis-garchen-rinpoche/405>\
**Category:** Garchen Rinpoche Speech SIG\
**Created:** [July 21, 2025, 11:46am UTC](https://forum.webuddhist.com/t/transcription-speed-analysis-garchen-rinpoche/405 "2025-07-21T11:46:38Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Ganga\_Gyatso](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.webuddhist.com/ganga_gyatso/32/166_2.png) [@Ganga\_Gyatso](https://forum.webuddhist.com/u/Ganga_Gyatso)\
**Post date:** [July 21, 2025, 11:46am UTC](https://forum.webuddhist.com/t/transcription-speed-analysis-garchen-rinpoche/405/1 "2025-07-21T11:46:39Z")

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# Evaluating STT Model-Assisted Transcription Speed: A Case Study with Garchen Rinpoche’s Teachings

## Introduction

In the realm of Tibetan Buddhist teachings preservation, transcription of oral teachings plays a crucial role. We conducted a comprehensive study to evaluate whether Speech-to-Text (STT) models could significantly improve transcription speed. Our study focused on Garchen Rinpoche’s teachings, comparing three transcription methods: manual transcription, base STT model-assisted transcription, and fine-tuned model-assisted transcription. While our initial hypothesis suggested that both STT-assisted methods would consistently improve transcription speed, our findings revealed a more nuanced reality.

## Background

Traditional manual transcription of Buddhist teachings is time-consuming and resource-intensive. Modern STT technology promises to streamline this process, but its effectiveness in real-world scenarios needed validation. We hypothesized that providing transcribers with machine-generated transcripts would significantly reduce transcription time, with fine-tuned models offering superior performance over base models.

## Methodology

### Dataset Preparation and Standardization

#### 1. Initial Selection and Filtering

- Selected segments from Garchen Rinpoche’s Benchmark
- Carefully filtered for segments ≥30 characters
- Grouped by original audio ID and character length

#### 2. Strategic Distribution Design

**a. Character Length Standardization**

- Segments in corresponding rows across all three test sets have similar character lengths
- **Why This Matters** :
  - Ensures fair comparison of transcription speeds
  - Longer segments might naturally take more time to transcribe
  - Similar character lengths provide a standardized basis for measuring speed improvements
  - Eliminates bias from varying text complexity

**b. Audio Source Management**

- Different segments from the same original audio used across test conditions
- **Why This Matters** :
  - Prevents transcriber memorization bias
  - If same segment appeared in multiple tests, transcribers might remember content
  - Memory advantage would artificially improve transcription speed
  - Using different segments ensures genuine speed measurement

**c. Distribution Balance**

- Similar total character counts across all three test sets
- Equal representation of audio sources
- **Why This Matters** :
  - Maintains consistent workload across all three conditions
  - Ensures fair comparison between manual, base, and fine-tuned approaches
  - Controls for variations in audio quality and speaker patterns

### Test Design

1. **Manual Transcription** : No reference transcript provided
2. **Base Model Assisted** : Base STT model transcript provided
3. **Fine-tuned Model Assisted** : Fine-tuned model transcript provided

### Test Execution

- Four experienced transcribers participated
- Three transcribers processed 25 segments per method one transcriber 18 segments per method due to lack of test data.
- Time measurements captured using specialized Google Sheets script
- Character counts and accuracy metrics recorded

## Results

### Key Metrics Visualization

```auto
Transcription Speed (characters/minute)

Manual: 47.86 ┤████████████████████
Base: 49.85 ┤█████████████████████
Fine-tuned: 77.67 ┤████████████████████████████████

Total Time Savings vs Manual (minutes)

Base: 3.52 ┤█
Fine-tuned: 40.60 ┤████████████████

Speed Improvement Percentage

Base: 3.31% ┤█
Fine-tuned: 38.25% ┤███████████████

```

### Individual Transcriber Performance

#### Speed Metrics by Transcriber

| Transcriber | Manual (chars/min) | Base Model (chars/min) | Fine-tuned (chars/min) |
| --- | --- | --- | --- |
| Transcriber 1 | 55.40 | 54.69 (-6.64%) | 94.57 (+34.42%) |
| Transcriber 2 | 37.70 | 42.27 (+35.69%) | 57.79 (+47.11%) |
| Transcriber 3 | 78.63 | 69.87 (-18.02%) | 183.56 (+45.44%) |
| Transcriber 4 | 56.99 | 56.47 (-36.20%) | 73.92 (+12.73%) |

_Note: Percentages in parentheses show speed improvement vs manual transcription. Negative values indicate slower performance._

### Overall Performance (Across All Transcribers)

| Metric | Manual | Base Model | Fine-tuned Model |
| --- | --- | --- | --- |
| Total Time (minutes) | 106.15 | 102.63 | 65.55 |
| Total Characters | 5,080 | 5,116 | 5,091 |
| Segments Count | 93 | 93 | 93 |
| Average Speed (chars/min) | 47.86 | 49.85 | 77.67 |
| Time Saved vs Manual (min) | - | 3.52 | 40.60 |
| Speed Improvement | - | 3.31% | 38.25% |

### Individual Transcriber Variations

#### Key Findings

1. **Most Significant Improvements** :

2. **Base Model Performance Variance** :

3. **Fine-tuned Model Consistency** :

## Analysis of Individual Performance Patterns

### Transcriber Experience Patterns

1. **High Performers with Fine-tuned Model**

2. **Base Model Challenges**

3. **Consistency Patterns**

## Discussion

### The Base Model Paradox

Our most surprising finding was that base model assistance sometimes increased transcription time. This could be attributed to:

1. Lack of domain-specific training

2. Mental Context Switching

3. Trust and Verification Issues

### Fine-tuned Model Success

The consistent improvement with fine-tuned model assistance across all transcribers validates the value of domain-specific model training. Key factors contributing to success:

1. Higher accuracy reducing verification time
2. Better handling of domain-specific terminology
3. Increased transcriber confidence in machine output

## Conclusions and Recommendations

1. **Fine-tuned Models** : Strongly recommended for transcription assistance, showing consistent speed improvements (12-45%)

2. **Base Models** : Use with caution

3. **Future Considerations** :

## Resources and Data Access

### Test Results and Analysis

- Complete test results and analysis are available in our [Google Drive folder](https://drive.google.com/drive/folders/12TYEOWcc5vsTFl7TLUgYdpRm8avn6eNF)
- Includes detailed transcription timing data and comparative analysis across methods

### Source Code

- GitHub Repository: [OpenPecha/stt\_transcription\_speed\_test](https://github.com/OpenPecha/stt_transcription_speed_test/tree/transcribing_speed_test)
- Contains scripts for:
  - Test data creation and distribution
  - Results analysis
  - Statistical computations

## Acknowledgments

Special thanks to our four transcribers who participated in this study.

* * *

_This research was conducted as part of the OpenPecha initiative to improve the preservation and accessibility of Buddhist teachings._

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**Author:** ![DavidYesheNyima](https://avatars.discourse-cdn.com/v4/letter/d/b487fb/32.png) [@DavidYesheNyima](https://forum.webuddhist.com/u/DavidYesheNyima)\
**Post date:** [August 21, 2025, 2:01am UTC](https://forum.webuddhist.com/t/transcription-speed-analysis-garchen-rinpoche/405/2 "2025-08-21T02:01:55Z")

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@Ganga_Gyatso which version of the fine tuned STT model was used in this testing?

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**Author:** ![Ganga\_Gyatso](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.webuddhist.com/ganga_gyatso/32/166_2.png) [@Ganga\_Gyatso](https://forum.webuddhist.com/u/Ganga_Gyatso)\
**Post date:** [August 21, 2025, 5:13am UTC](https://forum.webuddhist.com/t/transcription-speed-analysis-garchen-rinpoche/405/3 "2025-08-21T05:13:23Z")

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we used v1 finetuned model trained on 5 hours training data.
