Suggested circuits for photodiode/transistor to audio line-level?

[lpc32]

Can anyone suggest a simple circuit for hooking a photodiode/transistor to an audio line-level or microphone input?

[tggzzz]

Can anyone suggest a simple circuit for hooking a photodiode/transistor to an audio line-level or microphone input?

Connect all leads to both the signal connectorand the ground.

I have no idea whether that will do what you want - because you haven't bothered to state what you are trying to do!

[lpc32]

Light intensity to voltage in line-level/microphone range. What else could it be?

I want a quick way to look at some IR remote signals using parts I have handy. A photodiode or phototransistor plus the soundcard's ADC seem the simplest.

[tggzzz]

Light intensity to voltage in line-level/microphone range. What else could it be?

With a little imagination and a few moments thought, I could think of several.
So, PSU voltage, illumination range, linearity, accuracy, logarithmic or linear, frequency?

I want a quick way to look at some IR remote signals using parts I have handy. A photodiode or phototransistor plus the soundcard's ADC seem the simplest.

Looks like you've already determined your goole search terms.

[lpc32]

Couldn't find something promising, particularly if the first criteria is no chance of damage to the sound input.