Sample Rate - wrong pitch

[251jazz]

I am a new Receptor user, and like what I see so far. I am having clicks and ticks when the Sample Clock is set to internal. However, when I set it to S/PDIF Sync Enabled (clocked to a MOTU 2408) the pitch is off. The Receptor clock is set to 48 kHz, my DP session is at 48 kHz, and all my Gigas are at 48 kHz. I'm not quite sure why the pitch changes.....any ideas?[/b]

[DanTimis]

I am having clicks and ticks when the Sample Clock is set to internal.

Do you hear these clicks and ticks from the analog outputs, or from S/PDIF. What about the PHONES out on the front panel?

[251jazz]

Thanks for replying Dan. I am not noticeing the clicks and ticks through the phone outputs, so I imagine it's a digital clocking thing.

[Rick@MuseResearch]

Pitch changing: What plugin were you using? Some will change pitch and others do not when changing the Sample rate.

[philosorhymes]

I am having clicks and ticks when the Sample Clock is set to internal.

Do you hear these clicks and ticks from the analog outputs, or from S/PDIF. What about the PHONES out on the front panel?

Sorry to raise dead issues, but yestereday I happened to try the same thing. I've set receptor to sync to the SPDIF input, when I change the sample rate on my MOTU 828 to anything other than 44.1KHZ the pitch of my sound changes. I was running ePiano. I came here looking for answers but this one was not resolved. Is there any answer for this? I'm using the latest 1.4 OS.

Many Thanks.

Phil.

[DanTimis]

Do you also change the sample rate in Receptor? Some plug-ins also may need to be re-instantiated since they do not change sample rate on-the-fly.

If you set both the Receptor and your interface to the same sample rate, then instantiate your plug-ins it should work.

[philosorhymes]

Do you also change the sample rate in Receptor? Some plug-ins also may need to be re-instantiated since they do not change sample rate on-the-fly.

If you set both the Receptor and your interface to the same sample rate, then instantiate your plug-ins it should work.

I have set the Receptor, to sync to external SPDIF/input so i have no control over the sample rate set in the receptor. It should sync to the rate from the incoming SPDIF signal but it doesn't. Anything over 44.1Khz just gives a sound altered in pitch even if I reload the plugin, it happens to every plugin (I haven't tried all but I tried most).

Is this is a bug? I haven't read of any solution in the forum.

[DanTimis]

You DO need to change the sample rate from Receptor's sample rate menu in addition to selecting "S/PDIF Sync Enabled" Then, you need to re-instantiate the plug-ins that change pitch when you change the sample rate.

[philosorhymes]

Dan, I'm not sure if you have tried to do this? In my receptor the option to select sample rate becomes disabled once you've selected SPDIF/sync. This is why I am unable to select a sample rate to match. Please confirm if this is normal behaviour.

Many Thanks

Phil.

[DanTimis]

Maybe it is not the best possible design, but here is what you need to do:

• - Set the "Sample Clock Source" pop-up to "Internal"
  - Set the "Sample Rate" pop-up to "48.0 kHz"
  - Set the "Sample Clock Source" pop-up to "S/PDIF Sync Enabled"
  - Re-instantiate any plug-in that has the wrong pitch

You need to turn z-load off when you re-instantiate plug-ins, otherwise they may be re-used, not re-instantiated. You can also triple click the POWER button to restart, instead of turning z-load off and re-instantiating all plug-ins.

[philosorhymes]

Ok Dan I will try this. But may I ask if setting te Sample Rate to 48.0Khz locks it into that sample rate? or will it change when i change my sample rate in my MOTU?

[DanTimis]

Every time you want to change the sample rate, you should change it both in Receptor and in your audio interface. If the sample rates don't match, Receptor will lock to the MOTU sample rate, but it will think it is a different sample rate.