Hello,I have a problem with the latency of my two 2x4HDs. I use them one in each loudspeaker. The analog input is in use. Every time I start the MiniDSPs, their latency changes. How can something like that happen? I don't change the programming or anything else. Only on/OFF. the microphone stand still at one place. I noticed it because my sum signal from the left and right is always measured differently. In the picture below, i startet the dsp´s for every loopback measurement new.
3 times left and three times right on/off, 6 different latency´s
4 stereo measurments 4 frequency responce
greetings Marius
3 times left and three times right on/off, 6 different latency´s
4 stereo measurments 4 frequency responce
greetings Marius
You may get more response in the Digital Line Level forum.
There's also a forum on MiniDSP's site if you don't get many replies here.
Some threads suggest synchronizing the clocks between the two units in an application like this, but those were using the digital inputs, so I'm not sure if it would help with analog input. I'm also not clear on the master/slave capabilities when using multiple DSPs, whether you could use a single device's analog input, then feed the digital signal to the other, etc.
I'm not an expert on this topic, but since response to your thread is light, figured I'd throw out a couple ideas.
There's also a forum on MiniDSP's site if you don't get many replies here.
Some threads suggest synchronizing the clocks between the two units in an application like this, but those were using the digital inputs, so I'm not sure if it would help with analog input. I'm also not clear on the master/slave capabilities when using multiple DSPs, whether you could use a single device's analog input, then feed the digital signal to the other, etc.
I'm not an expert on this topic, but since response to your thread is light, figured I'd throw out a couple ideas.
Try repeating your measurements, but keep the MiniDSP on. Does the delay still change? If so, you are looking at a non contant delay within your measurement setup. The ADC and DAC of an audio interface do not have a constant delay. You can get around that by looping back the output of the audio interface to a second input on it. Then REW can compare the input to the loopback, to get rid of the delay within the audio interface. Set it at Measurement - Timing.