wireless conversion of older radio

Is it possible to use an arduino with a Bluetooth shield as the input, and 3.5 mm audio Jack as output to convert radio with aux Jack to wireless?

Phone with music > Bluetooth shield > arduino > 3.5 mm > radio

I don't understand that. Do you want to use the radio to play sound received from the phone?

What radio?

Allan

A radio with an auxiliary input. The phone outputs music through Bluetooth, The arduino receives and outputs to to 3.5mm jack, into radio 3.5mm jack.

Wouldn't it be simpler and probably cheaper just to buy a bluetooth receiver? There are hundreds of them on Ebay. E.g. http://www.ebay.com/itm/3-5mm-USB-Receiver-Adapter-Dongle-Bluetooth-Wireless-Stereo-Audio-Music-Speaker-/222448025726?hash=item33caef807e:g:zVEAAOSw3xJVbpYm

An Arduino doesn't seem to add anything useful.

Steve

The BT signal is strictly digital. It must be decoded to yield equivalent analog values, and a fast DAC is needed for output to the aux jacket. Not what an Arduino can do by itself.

DrDiettrich:
The BT signal is strictly digital. It must be decoded to yield equivalent analog values, and a fast DAC is needed for output to the aux jacket. Not what an Arduino can do by itself.

Moreover, the Bluetooth signal is time-sliced with both devices transmitting and receiving in their own little time slice. Not a continuous stream of data.

Paul

Nevertheless high quality audio BT links can be done - for example some expensive headphones do this.

Allan