HDMI audio is a newer format that uses a single cable to transmit both video and audio signals. This can be an advantage if you want to avoid having to connect multiple cables to your TV or receiver. HDMI audio also supports a wider range of audio formats, including high-resolution formats like Dolby TrueHD and DTS-HD Master Audio.
Digital optical audio (also known as S/PDIF) is an older format that uses a separate cable to transmit audio signals. This can be a disadvantage if you want to avoid having too many cables connected to your TV or receiver. However, digital optical audio is still supported by most devices and it provides excellent sound quality.
In terms of sound quality, HDMI audio and digital optical audio are both capable of delivering high-quality sound. However, some people believe that HDMI audio can sound slightly better, especially at high volumes. This is because HDMI audio uses a higher sampling rate than digital optical audio.
Ultimately, the best format for you depends on your specific needs and preferences. If you want the most convenient option with the best possible sound quality, HDMI audio is the better choice. However, if you are looking for a more affordable option that is still compatible with most devices, digital optical audio is a great choice.
Here is a table that summarizes the key differences between HDMI audio and digital optical audio:
| Feature | HDMI Audio | Digital Optical Audio |
|---|---|---|
| Cable | Single cable for video and audio | Separate cable for audio |
| Audio Formats | Supports a wide range of formats, including high-resolution formats | Supports most common formats, but not high-resolution formats |
| Sound Quality | Slightly better at high volumes | Excellent sound quality |
| Compatibility | Most modern devices support HDMI audio | Most devices support digital optical audio |
| Price | More expensive than digital optical audio | More affordable than HDMI audio |