Composite and Audio on B+

[kusti8]

Hello! Haven't got the B+ yet but I wanted to know of you can use the composite jack and the audio jack at the same time. What I want to do is make a portable version of my media center and want to use the B+ I need the composite since some hotel TV do not have HDMI. I also need audio. Is there a way where I can put the video to the tv and then have the sound play throughout either the tv or speakers. Another question: should I use a sound card to improve quality or not. Any help is appreciated!

[fruitoftheloom]

http://www.raspberrypi.org/forums/viewt ... 63&t=81837

[AndrewS]

http://www.raspberrypi.org/forums/viewt ... 77#p577977

Another question: should I use a sound card to improve quality or not

That obviously depends on whether the analogue audio from the B+ is "high quality enough" for you or not...

[drgeoff]

Yes, if you have a suitable cable you can have simultaneous composite video and stereo audio from the 4 pole 3.5 mm socket.

[kusti8]

Can anyone suggest a cable which I can buy for this purpose?

[fruitoftheloom]

Can anyone suggest a cable which I can buy for this purpose?

http://www.raspberrypi-spy.co.uk/2014/0 ... video-jack

http://www.ebay.co.uk/itm/3-5mm-Mini-AV ... 1487521118

http://www.ebay.co.uk/itm/350843265424

[kusti8]

Thank you!

[SFX Group]

Can we use a standard 3.5mm audio jack to get sound from this? It appears that would short the composite to ground in the connector, i assume this is ok (which is why the connector was designed this way?)

Post 3 on a standard 3.5mm jack is ground, then post 4 is added in this are for the composite so using a standard audio jack will short these 2, again i assume by design?

[klricks]

Can we use a standard 3.5mm audio jack to get sound from this? It appears that would short the composite to ground in the connector, i assume this is ok (which is why the connector was designed this way?)

Post 3 on a standard 3.5mm jack is ground, then post 4 is added in this are for the composite so using a standard audio jack will short these 2, again i assume by design?

Your 2 questions to me appear to be the same......
You can use a 3 ring plug in the RPi audio jack for audio only. It will short out the video signal but that is OK. I don't think there is video signal there anyway when using HDMI.
Be sure to fully seat the plug in the jack.

[rpdom]

Yes, the fourth connection (S in the TRRS of the plug) is for video and the circuit is designed so that it will not be damaged if shorted out - even if trying to output video at the time.

[SFX Group]

thanks