TwinQ to Mac Pro optical...

[angelbomb]

Has anyone got this to lock at anything other than 44.1? I can't seem to get 48 or 96 to lock. I found a post (http://discussions.apple.com/message.jspa?messageID=10947936) on apples site regarding the format the apple optical can read and i'm wondering if this is what i'm running into?

Any help would be great!

Thanks, Josh

[Alan Hyatt]

Has anyone got this to lock at anything other than 44.1? I can't seem to get 48 or 96 to lock. I found a post (http://discussions.apple.com/message.jspa?messageID=10947936) on apples site regarding the format the apple optical can read and i'm wondering if this is what i'm running into?

Any help would be great!

Thanks, Josh

Josh,

You have to be sure to set the switches to match you DAW or interface card. This is done on the back of the twinQ. You have to be sure to match the sampling rate. This is from our web site:

Digital Interface

The Joemeek Digital Audio Interface provides high quality digital audio outputs plus the ability to synchronize to an external word clock. The digital audio outputs are compatible with most digital recorders, as well as Digital Audio Workstations and digital mixers. S/PDIF format is available from both the optical and the RCA phono connectors, while the transformer coupled XLR connector provides an AES3 compliant output.

The Joemeek Digital Interface has highly stable onboard master clocks for low-jitter, hi-fi results. Internal sample rates of 44.1kHz, 48kHz, 88.2kHz or 96kHz are selected by means of rear panel switches. 44.1kHz is the standard used for audio CD's, while 48kHz and 96kHz are widely used in recording studios. In general, the higher the sample rate, the better the audio fidelity, but the more disk space is required for the recording. For example, recording at 96kHz requires twice as much storage as 48kHz. Consult the manual of your recorder or DAW as to what sample rates it will accommodate.

Alternatively the twinQ may be set to the frequency of an external master word clock, generated, for example, by the studio's recorder or DAW. When connected to the BNC socket provided, a suitable external word clock will be detected automatically and will override the twinQ's internal word clock. The front panel LED labelled 'EXT CLK' illuminates when the twinQ is successfully locked to an external word clock.

To avoid distortion, care should be taken not to overdrive the input to the Digital Interface. The red LED next to the Output Gain control is labeled "PEAK FSD" which stands for "Full Scale Digital". Occasional flashes are OK but if it is on all the time, turn something down!

[angelbomb]

Thanks Alan, I am quite aware of the switches, I've never had an issue locking it to any of 3 different interfaces. For some reason, it just will not lock to the MacPro optical input, except for at 44.1, and that's why I was asking if there were any known compatibility issues.

Josh

[Alan Hyatt]

I know of no issues. You can always call out tech department and speak to them. I have no clue...unless you are using a Motu...