Digital audio out cable to RCA
What is the difference between an "audio out" and "digital audio out (optical)" port on my TV?
The audio out is an analog signal meaning you could directly plug headphones or speakers to that port and get sound, because it is outputting an analog signal. But that sound will probably be at a low level typically -10dbu and will require amplification, so it wouldn't be loud enough for headphones you would need speakers with amplification.
The optical out is a digital signal meaning if you would listen to that signal on its own it would sound like random digital noise beeps clicks and what not. So you have to plug the optical cable into a device that converts digtal data into analog sound. Most home theatre sound systems can handle this.
Quality speaking you would want to use optical because you can buy a device that can convert the digital data into a higher quality analog sound.
Where as the audio out will be converting the digital data into analog sound via the internal digital to analog converter(DAC), built into your tv. And even if you have a 5, 000 dollar expensive 4k tv it will still have the same crappy DAC that some old low level 2005 plasma tv. TV companies spend the bare minimum on DACs.
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FIIO D3 (D03K) Digital to Analog Audio Converter with SMI Gold Plated 6ft Optical TOSLink Cable and RCA-to-3.5MM Audio Cable- 192kHz/24bit Optical and Coaxial DAC
Speakers (SMIC)
- Converts a digital coaxial/optical S/PDIF signal to two-channel (left/right) analog output, which can then be fed to an amplifier or to WLAN headphones
- RCA coaxial and TOSLink digital inputs (switch selectable)
- Dual RCA phono and 3.5mm mini stereo output connectors
- Supports up to 24-bit/192 kHz input (PCM only, no support for Dolby Digital or DTS formats
- Include USB Charger, Gold Plated RCA-to-3.5mm Audio Cable, 6ft SMI premium gold plated TOSLink Optical Cable with tip protectors.
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TNP Premium Mini Toslink to Toslink Digital Optical Audio Cable (3 Feet) - Standard Toslink to Mini Toslink Male Plug Connector Adapter Converter Jack Wire Cord
CE (TNP Products)
- This adapter cable converts TosLink to Mini TosLink; Compatible with Chromecast Audio optical sound output and other A/V components with Mini Toslink / Toslink interfaces...
- High performance versatile cable delivers cleanest possible signal even at extreme volume levels; Accurately transfer high bandwidth frequency quality detailed clean...
- Premium low-loss core, low-jitter synthetic fiber and connectors to dampen vibration and enhanced internal noise rejection giving you clearer, deeper bass and eliminate...
- Heavy shielding allows for a maximum audio quality; reduce distortion and signal loss; minimizes return loss, so music, dialogue and sound effects are always clear...
- For use with: Google Chromecast Audio, Mac Mini, AV receiver, computer sound card, audiophile quality home theater cinema HiFi system and more; Supports uncompressed...
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