With the advent of the era digital TVs For a huge number of film fans, wide opportunities have opened up to watch videos not on a computer, but on a TV screen. We all understand that watching movies often means not only DVDs or BDs, but most often movies downloaded from the Internet. Many of us remember how quite recently, to connect a computer’s video card to a TV, it was necessary to use an analog video cable, which produced a signal of questionable quality and required a separate audio cable.
Happy owners of modern LCD TVs and new video cards now have access to a new interface for connecting a computer to HDMI TV. This interface is good because it is digital and, in addition to high-definition video (HD), can also carry digital audio(SPDIF). SPDIF- this is Sony-Philips Digital Interface Format or Sony-Philips Digital Interconnect Format - a digital audio transmission format. It is used in a large number of modern consumer audio and video equipment; it is a household analogue of the AES/EBU standard, which is used in professional equipment.
All modern computer audio interfaces are equipped with SPDIF support. All modern computer video adapters are equipped with an HDMI port. Budget or early models of video cards are equipped with a special adapter DVI-HDMI. Most often, the presence of an HDMI port in a video adapter implies a direct connection with the audio controller and does not require additional connections, then it’s enough just to specify the digital audio output in the settings, and a picture will appear on the TV, accompanied by sound. The same applies to laptops with built-in HDMI.
But when HDMI is connected to the video card using an adapter, the sound SPDIF to HDMI you have to feed it manually using a special SPDIF-HDMI cable. This cable is usually supplied with a DVI-HDMI adapter and is connected at one end to motherboard(if using a built-in audio controller) or sound card into the SPDIF connector, and the other end into the video card. Let us immediately note that not all video cards with a DVI interface are equipped with a special connector for connecting this cable, so you first need to make sure that it is available.
After correct installation connecting cable" SPDIF_OUT - video adapter"You can be sure that the signal is from sound card is supplied to the HDMI of the video card. The SPDIF connecting cable consists of two cores - Ground + Signal. It is very important not to confuse them and connect them correctly, otherwise nothing will work, and if the signal or ground is connected to “+5V”, the cable may catch fire and damage the computer components, so carefully check the compliance of the GRND and SPDIF markings on the motherboard . The black wire is GND (ground), the second wire can be of different colors, in any case it is a signal wire and connects to SPDIF_OUT. Leave the +5V connector on the SPDIF connector empty. The connecting cable connector on the video card side is standard and cannot be connected incorrectly.
After performing all the simple manipulations with connecting the SPDIF cable to the video card, turn on the computer, turn on the TV, select the HDMI input and feed a picture to it, for example, turn on a movie. The sound at this moment will come from computer speakers. This means that the system still defaults to the analog audio source. To change it to digital, press right click mouse over the audio mixer icon in the system tray, select "Playback devices".
In the window that opens, select the sound source we need, in this case it is HDMI Digital Audio Output, click the “Default” button and apply the settings.
If everything is done correctly, the sound should disappear from the computer speakers and appear on the TV. Which is exactly what we needed.
In order to once again convince you of the need to carefully connect the SPDIF cable to the video card, we are publishing a photo of what can happen if the signal is connected to “+5V”. In a matter of seconds, the cable becomes red-hot and its winding begins to burn. In this case, only the cable was damaged, but the consequences could be unpredictable. Be careful!
We take digital sound from the optical output of the TV and feed it to the music tulips. center comraddm writes on April 8, 2016
USB cable length 120cm
Optical cable 1M long
The ends are covered with rubber protective caps.
The connector is standard SPDIF with beveled corners.
Many of you, like me, have sometimes seen it on TV and some computers, but have never used it, so it will be interesting to find out what kind of beast it is.
There is an optical fiber inside, if light is applied to one end, it can be removed from the other end.
And finally, the converter itself is a metal box with connectors on both sides.
On one side there are inputs: power and digital audio, either via an optical Toslink cable like ours, or via a coaxial one.
On the other side, there are outputs: 3.5mm headphone output, two RCA tulips and a power indicator, red and quite vigorous.
The dimensions of the converter are small: 5.5cm*6cm*2cm
But it is quite weighty thanks to the metal body: 82g
The converter is easy to disassemble, just unscrew the screw.
And then two more and you're done:
The work at the back is a little sloppy, the soldering is ugly in places, and the flux has not been washed off in some places.
I'll give you close-up photos:
http://s19.postimg.org/42zggy8tv/audio_converter_19.jpg
http://s19.postimg.org/bmsjj020j/audio_converter_20.jpg
http://s19.postimg.org/o05dpwroz/audio_converter_21.jpg
http://s19.postimg.org/fkft8eotv/audio_converter_22.jpg
Well, let's connect.
The connection is incredibly simple, insert the necessary wires where necessary and power it from the USB of the TV itself.
The indicator is eye-catching, like a mini flashlight.
It’s better to turn it somewhere back into the wall or completely seal it, since at least when the TV is turned off, it’s also turned off.
In the TV settings, in the sound section, you can choose where to output the sound; on Samsung, the fastest way to get there is through the quick settings button.
If the audio output is selected as in the screenshot, then the sound in the TV itself no longer comes, and when you try to adjust the volume it will write that we have tuned in to external speakers and now we must adjust the sound with their remote control.
You don’t have to switch the sound to external ones, they always play as soon as they are plugged in, then both external and internal speakers will play at the same time, and in many cases there will be an echo due to the time it takes to convert digital to analog, a kind of hall effect.
You can mute the built-in speakers or reduce their volume to zero so that the muted speaker icon does not appear on the side.
But when watching especially multi-channel films, it is better to use both speakers; the TV transmits mid-frequencies well - speech, music. the center acts as a sub and provides special effects.
During operation, the converter practically does not heat up.
I don't have a professional microphone, so I did my best with a regular camcorder to convey to you the difference in sound between the built-in speakers and external ones.
In reality the difference is even higher than in the video.
You will need bass headphones or speakers to hear the difference; you are unlikely to distinguish anything in laptop speakers or desktop plastic tweeters.
That's all, thank you all for your attention.
A home theater creates a unique sound atmosphere when watching movies. The depth and power of the sound is simply mesmerizing. However, not many people know that home theater speakers can be used to reproduce sound from a TV. The TV is not designed to create high-quality audio. Its speakers are simply not capable of reproducing sounds over a wide range of frequencies.
Even if you buy an expensive modern model, you will not get excellent sound quality. Agree that it is much more pleasant to watch programs surrounded by surround sound, rather than through standard speakers. There are several ways to deliver sound from your TV to your home theater. Next we will look at each of them in detail.
Ways to output sound from TV
Depending on the specific model home theater and TV, there are several connection methods. In this case, you may need cables or adapters that are not included with the equipment. You'll have to buy them separately.
1. The most the best way To transmit multi-channel sound from a TV to a cinema is to use a digital optical output. It is often installed on the latest TV models and provides the best quality audio signal transmission. Make sure there is a similar connector on your cinema receiver and TV. A special fiber optic cable is used for connection, which is immune to any electromagnetic radiation. In this regard, you get excellent sound quality without interference or distortion. Connect a cable from the OPTICAL OUT jack on the TV to the OPTICAL IN jack on the theater receiver. It is imperative to feed the audio signal from the TV output connector to the receiver input connector. Otherwise, sound may not be transmitted.
2. It is likely that your equipment may not have an optical output. Dont be upset. You can output sound using a coaxial connector. It also supports multi-channel audio. To connect, you will need a coaxial cable and the presence of similar connectors on your equipment. Use a cable to connect the COAXIAL OUT (S /PDIF - OUT COAXIAL) jack on the TV to the COAXIAL IN jack on the theater receiver. Again, it is very important to observe the direction of signal transmission from the TV to the receiver.
3. A simple and popular method of transmitting sound using a cable that has two RCA (“tulip”) connectors of different colors at the ends - red and white. The analog composite connector is very common and is used in almost all home theater systems. True, the quality of audio signal transmission is noticeably inferior to the method described above. To connect, you will need a cable to connect the AUDIO IN port on the receiver and the AUDIO OUT (LINE OUT) port on the TV. Color coding will help you avoid mistakes.
It may happen that the audio output jacks on the TV are busy or missing for some reason. There is a way out of this situation. Can be used with TV headphone output. You will need a special cable on one end of which is a 3.5 mm miniJack (connect to the headphone output on the TV), and on the other - a pair of RCA connectors (connect to the AUDIO IN input on the receiver).
4. You will almost never see a SCART connector on a home theater receiver, but it is still found on some TVs. It can be used to listen to TV through cinema speakers. To do this you will need a SCART - 2RCA cable. Use this cable to connect the SCART OUT jack on your TV to the AUDIO IN jack on your receiver.
Important information
For any connection method, all equipment must be turned off and de-energized. This is for safety and to avoid possible damage that may occur due to static electricity. Only after you have completely completed the connection can you turn on the devices. By the way, for some reason many people believe that the sound of a TV through a home theater will be of poor quality due to the fact that in most cases the audio signal source is monaural. So this opinion is wrong. Naturally, you won’t be able to achieve superior sound quality. But in any case, the sound processor of the cinema receiver will refine the signal to the optimal level. Don't forget about cable and satellite television, which carries good quality sound.
conclusions
As you can see, it is possible to output sound from your TV to your home theater speakers. And in a lot of ways. Before purchasing cables, make sure that the required connectors are present on your equipment. Good luck with your connections.
Modern TVs are capable of transmitting excellent picture quality, up to 4K resolution, can play 3D video, and are equipped with built-in satellite receivers, but the sound quality, even of expensive models, is poor. This is understandable, because TVs are becoming thinner and good acoustics You can't physically put it there. But there is a solution - buying a home theater or AV receiver with high-quality speakers. Even with the help of budget acoustics you will get good quality sound. In this article I would like to talk in detail about how to output sound from a TV to a home theater receiver.
Attention!!! It doesn’t matter which connection method you use, before connecting the cable, all equipment must be turned off and de-energized.
Output sound from the TV to the home theater/receiver using an HDMI cable.
One of the most modern ways to transmit high-quality sound (not only audio, but also video) is the HDMI interface. As for transmitting sound from the TV to the receiver, this interface is also suitable, but with a few caveats - your TV and home theater must support Audio Return Channel (ARC) technology.
ARC (Audio Return Channel) is a technology that can be used to transmit surround sound from a TV to a home theater/receiver with using HDMI-cable v 1.4.
But in order to use this technology, your TV must have an HDMI (ARC) connector.
An HDMI connector with ARC support should also be on the home theater receiver, you can find out this information from technical documentation to the audio system.
If your TV and audio system support ARC, all you have to do is connect them to each other using an HDMI cable version 1.4, preferably 1.4b. Please note that the cable must be High Quality, because if the quality of the cable is poor, problems may occur when playing audio on a home theater; in particular, the sound may disappear for several seconds.
After you have connected your TV and home theater/receiver with a high-quality HDMI v 1.4 cable, make sure that ARC is enabled on both the TV and the audio system. All that remains is to select in the TV settings to play sound from the audio system (instead of the built-in speakers) and enjoy high-quality sound.
This method allows you to achieve excellent sound quality without using unnecessary wires and, in my opinion, is the most preferable.
Play audio from your TV on your audio system using an optical cable.
Another way to transfer sound from a TV to an audio system is using an optical cable. To do this, make sure that your TV and home theater receiver have an optical cable connector. The TV must have an OPTICAL OUT connector, and the home theater receiver must have an OPTICAL IN connector.
If such connectors are available, all that remains is to purchase an optical cable of the required length and connect the TV and home theater.
What is the advantage of this method - the optical cable is not “afraid” of electromagnetic radiation, so there will be no interference when using it, plus it is capable of transmitting excellent sound quality.
Output audio from your TV to your home theater receiver using a coaxial cable.
If the first two methods do not suit you, then connect using coaxial cable(RCA-RCA) is your salvation.
First of all, see if such a connector is present on your TV and audio system.
After this, use a cable to connect the COAXIAL OUT (S/PDIF - OUT COAXIAL) jack on the TV and the COAXIAL IN jack on the theater receiver. After that, you can enjoy multi-channel sound on your home theater.
Set up audio playback from the TV to the receiver using an analog connection.
If all the methods described above do not suit you, you can use the most in simple ways, namely, use an analog connection, for example, a connection using RCA (in common parlance - a tulip).
Use it to connect the AUDIO IN port on the receiver and the AUDIO OUT (LINE OUT) port on the TV. In addition to the “tulip”, you can use various adapters, for example mini Jack - 2RCA, SCART - 2 RCA (if 3RCA, then yellow (transmits video) does not need to be connected), etc. The main thing is to choose an audio connector on the TV with an OUT prefix and on a home theater receiver with an IN prefix.
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