Bluetooth Audio Quality Enhancement

I need a skilled hardware engineer to review and improve the audio quality of my existing PCB. The PCB uses Bluetooth 4 for audio connections with mobile devices (iPhone and Android).

Key Requirements:
- Analyze and advise on current audio quality issues
- Provide solutions to enhance audio performance
- Experience with Bluetooth audio systems
- Background in PCB design and troubleshooting

Ideal Skills:
- Expertise in audio signal processing
- Familiarity with Bluetooth technology
- Strong problem-solving skills
- Experience with mobile device connectivity

I need someone who can not only identify problems but also implement effective solutions to achieve high-quality audio performance.