What kind of Op Amp configuration is this?
Like drawn, the circuit is incomplete / unclear as there is no resistor (and/or capacitor) between \$V_{in}\$ and the - input of the opamp. That means that the feedback circuit (R6, C4) actually doesn't do anything and the opamp will work as a comparator.

Without the DC biasing (which isn't needed if we use a symmetric power supply) that would look like:







simulate this circuit &ndash; Schematic created using CircuitLab

On the left is the comparator circuit.

Add one resistor and we get a 10x inverting amplifier.

As mentioned I removed the biasing (virtual ground) resistors R4, R7 to make the schematic simpler. Since I'm using +5 V and -5 V supply rails I don't need a "virtual" ground, I can use the real one instead.

When using a single supply voltage of for example +10 V only then we need to set a "working point" for the opamp. It cannot be ground as the opamp cannot work with signals close to ground voltage (0 Volt) when it does not have a negative supply voltage. So we have to creat a "virtual" ground. That's where R4 and R7 come in, they make a voltage of half of the supply voltage. If the supply was 10 V then that would be 5 V giving the opamp a good working point.