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Gear / Technical Help => Recording Gear => Topic started by: bconnolly on March 03, 2006, 02:17:35 PM

Title: MT and UA-5: Switchinig sample rate question.
Post by: bconnolly on March 03, 2006, 02:17:35 PM

Last night I decided to record the final act of a concert in 24/48kHz.  I already had the MT turned on and was feeding it a signal via S/PDIF so I went into the config and selected 24 bit recording, then on the UA-5 I switched the knob down to 48kHz sample rate.  The recording looks like it's 44.1kHz, though.  Could this be because I switched the sample rate without restarting the MT?  Is that necessary in order to get the MT to recognize the change?

Title: Re: MT and UA-5: Switchinig sample rate question.
Post by: terrapinj on March 03, 2006, 02:37:19 PM

Quote from: mojomonkee on March 03, 2006, 02:17:35 PM

Last night I decided to record the final act of a concert in 24/48kHz.  I already had the MT turned on and was feeding it a signal via S/PDIF so I went into the config and selected 24 bit recording, then on the UA-5 I switched the knob down to 48kHz sample rate.  The recording looks like it's 44.1kHz, though.  Could this be because I switched the sample rate without restarting the MT?  Is that necessary in order to get the MT to recognize the change?

did you turn the UA-5 off? my understanding is that it will not change the bitrate and sample rate while powered on.

Title: Re: MT and UA-5: Switchinig sample rate question.
Post by: bconnolly on March 03, 2006, 02:53:45 PM

Quote from: terrapinj on March 03, 2006, 02:37:19 PM

Quote from: mojomonkee on March 03, 2006, 02:17:35 PM

Last night I decided to record the final act of a concert in 24/48kHz.  I already had the MT turned on and was feeding it a signal via S/PDIF so I went into the config and selected 24 bit recording, then on the UA-5 I switched the knob down to 48kHz sample rate.  The recording looks like it's 44.1kHz, though.  Could this be because I switched the sample rate without restarting the MT?  Is that necessary in order to get the MT to recognize the change?

did you turn the UA-5 off? my understanding is that it will not change the bitrate and sample rate while powered on.

This I did not know.  Thanks for the heads up and I will know in the future.

Man, last night's taping gig was full of little problems that I didn't notice until this morning.  :-\

Oh well, there's always more shows to go to, right?

Title: Re: MT and UA-5: Switchinig sample rate question.
Post by: jtessier on March 03, 2006, 03:04:05 PM

Quote from: mojomonkee on March 03, 2006, 02:53:45 PM

Quote from: terrapinj on March 03, 2006, 02:37:19 PM

Quote from: mojomonkee on March 03, 2006, 02:17:35 PM

Last night I decided to record the final act of a concert in 24/48kHz.  I already had the MT turned on and was feeding it a signal via S/PDIF so I went into the config and selected 24 bit recording, then on the UA-5 I switched the knob down to 48kHz sample rate.  The recording looks like it's 44.1kHz, though.  Could this be because I switched the sample rate without restarting the MT?  Is that necessary in order to get the MT to recognize the change?

did you turn the UA-5 off? my understanding is that it will not change the bitrate and sample rate while powered on.

This I did not know.  Thanks for the heads up and I will know in the future.

Man, last night's taping gig was full of little problems that I didn't notice until this morning.  :-\

Oh well, there's always more shows to go to, right?

I think that the MicroTrack does only set the sample rate when the record button is pressed (not 100% sure but I wouldn't trust it to switch mid stream). 

Title: Re: MT and UA-5: Switchinig sample rate question.
Post by: bconnolly on March 03, 2006, 03:05:15 PM

I actually wasn't recording when the sample rate was changed.  I think it's just because I didn't restart the UA-5.

I dithered the recording to 16 bit so now it's 16/44.1kHz.  Still sounds really damn good.