Improving the quality of voice messages

In the Beta version of Telegram for Android, the quality of voice messages has been improved:

- Optimized frequency response, the voice has become deeper.
- Increased bitrate.

For clarity, we suggest listening to several recordings:

— In the underground
• Telegram 5.15
• Telegram 5.16

— At home
• Telegram 5.15
• Telegram 5.16