π¬ Emotion Recognition
Comprehensive collection of emotion recognition technologies for audio, text, and multimodal analysis.
π Table of Contents
π΅ Audio Emotion Recognition
π· Speech Emotion Recognition (SER)
- Prosodic features analysis (pitch, tempo, energy)
- Spectral features extraction (MFCC, mel-spectrograms)
- Deep learning approaches (CNN, RNN, Transformer)
- Real-time emotion detection
π· Music Emotion Recognition
- Musical features analysis (rhythm, harmony, timbre)
- Valence-Arousal dimensional model
- Discrete emotion classification
- Cross-cultural emotion recognition
π Text Emotion Recognition
π· Natural Language Processing
- Sentiment analysis techniques
- Emotion classification models
- Context-aware emotion detection
- Multilingual emotion recognition
π· Deep Learning Approaches
- BERT-based emotion models
- Transformer architectures
- Attention mechanisms for context
- Transfer learning strategies
ποΈ Multimodal Emotion Recognition
π· Audio-Visual Fusion
- Facial expression + speech analysis
- Gesture recognition + voice patterns
- Cross-modal attention mechanisms
- Temporal alignment techniques
π· Multi-Sensor Integration
- Physiological signals (heart rate, GSR)
- Behavioral patterns analysis
- Environmental context consideration
- Real-time multimodal fusion
- Type: Audio emotion recognition
- Features: Pretrained emotion models
- Framework: PyTorch-based
- Best for: Research and development
- Type: Real-time emotion detection
- Features: Facial + speech analysis
- Performance: Real-time processing
- Best for: Live applications
- Type: Facial emotion recognition
- Features: Multiple emotion models
- Accuracy: High precision detection
- Best for: Visual emotion analysis
- Type: Text emotion recognition
- Features: BERT, RoBERTa models
- Languages: Multilingual support
- Best for: NLP emotion tasks
π Datasets
π· Audio Emotion Datasets
- RAVDESS - Ryerson Audio-Visual Database
- IEMOCAP - Interactive Emotional Dyadic Motion Capture
- MSP-Podcast - Multimodal Speaker Personality
- CREMA-D - Crowd-sourced Emotional Multimodal Actors
π· Text Emotion Datasets
- GoEmotions - Googleβs emotion dataset
- ISEAR - International Survey on Emotion Antecedents
- EmotionLines - Multi-turn emotional conversations
- EmpatheticDialogues - Empathetic response generation
π· Multimodal Datasets
- CMU-MOSEI - Multimodal Opinion Sentiment and Emotion
- MELD - Multimodal EmotionLines Dataset
- IEMOCAP - Audio-visual emotion corpus
- AFEW - Acted Facial Expressions in the Wild
π Implementation Examples
Python - Audio Emotion Recognition
import torch
from speechbrain.pretrained import EncoderClassifier
# Load emotion recognition model
emotion_model = EncoderClassifier.from_hparams(
source="speechbrain/emotion-recognition-wav2vec2-IEMOCAP"
)
# Predict emotion from audio
emotion = emotion_model.classify_file("audio.wav")
print(f"Detected emotion: {emotion}")
Python - Text Emotion Recognition
from transformers import pipeline
# Load emotion classifier
classifier = pipeline("text-classification",
model="j-hartmann/emotion-english-distilroberta-base")
# Predict emotion from text
result = classifier("I am feeling very happy today!")
print(f"Emotion: {result[0]['label']}")
π‘ Use Cases
| Application |
Technology |
Benefits |
| Customer Service |
Real-time emotion detection |
Better customer experience |
| Mental Health |
Emotion monitoring |
Early intervention |
| Education |
Student engagement |
Personalized learning |
| Entertainment |
Content recommendation |
User satisfaction |
| Healthcare |
Patient monitoring |
Improved care |
π‘ Tip: Combine multiple modalities (audio, visual, text) for more accurate emotion recognition.