The design shown in the attachment is a Compressor sub-system, which is part of a much larger system (16 inputs/8 outputs). I have created it based on the documentation in the Modules User's Manual for a customer.
The Meter on the Left is a VUMeter, connected to the input signal (not shown here). The Meter on the right is the VUMeter shown on the top right.
As you can see, when the path through the compressor is selected, I get a loud hiss (as you can see on the right meter). When a signal is applied to the input again, there is very large peak at the output (even for a small input signal), probably due to the current large gain of the compressor.
Both these behaviors are obviously not right. Is this a wrong implementation of a compressor, or is it a bug in the compressor core?
This is quite urgent as the customer needs to go into production soon.
1:18pm
Hi Yair,
The CompressorCore module applies both upwards and downwards compression which may have the undesired effect of significantly boosting a very quiet signal (this would explain the hiss). Alternatively, the LimiterCore module only applies downward compression, so perhaps the LimiterCore may be a better fit for what you want to accomplish. Note that neither module applies a static make-up gain.
Thanks,
Michael
1:30pm
Hi Michael,
Is there a way to configure the AGCCompressorCore to prevent the upwards compression?
If not, can you show me how to use the LimiterCore for this design? What would be the difference between the Limiter and Compressor?
Yair
4:08pm
Hi Yair,
The upwards compression is built into the CompressorCore module so you'll need to substitute in the LimiterCore. The LimiterCore operates in the same manner as the CompressorCore so this can just be a direct substitution in your AWD.
Thanks,
Michael