Playback using USB B is not working correct.

[HeinParticipant]

Hallo everybody,

I was trying to connect my QU-24 (firmware 1.6) with my laptop using the USB B. It did record fine but if tried to play it back it sounded like the first +/-10msec repeated. On the laptop it looked like it was playing everything. Only if i armed 1 of the tracks sometimes it works ok, but a lot of times the same thing happened.

While playback i have all my channals set to USB B.
I use Windows 8.1 and SONAR 6 Producer Edition(x64).

Is there somebody who can tell me what i am doing wrong?

[[XAP]BobParticipant]

So you were just getting a tight loop of the first snippet of audio on all the channels? Is the recording OK (listening to each track from a direct sound card)?

what length/fatness of cable?

[HeinParticipant]

Hallo Bob,

I am getting a tight loop of audio on all channels. Its not always the beginning of the song. If I let the song begin for example at 0:01.30 then there it happens. I have listened to every channels solo while it was looping and I could tell that it was looping that channal at that time in the song. If I hit “stop” and than “play” again then (sometimes) it plays all channals correct.

I have tried this with different files all recorded with the QU-drive. They all do the same. If I play the wav files in Windows Media Player” then there is no problem so I don’t think the files are corrupt.

The cabel that I am using is a standerd USB cabel, Length 1,5m. I don’t know the fatness of the cable but recording with it was no problem.

I just can’t understand why it sometimes is working if one track is armed for recording.

[AndreasModerator]

Did you try larger ASIO buffers? Not every hardware is capable to handle that quantity (2×24) of concurrent audio channels with smallest buffers.

[HeinParticipant]

Hallo Andreas,

I will try this soon. What is a normal size for the ASIO buffer. Its the first time I do recording so the settings in the software are all new for me.

I have added a printscreen from the ASIO settings in the software but the QU-24 was not connected at momment that I made the printscreen so maybe not all settings you see are correct.

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[AndreasModerator]

The buffer setting is not on that page. You should find a Qu USB Control Panel (red ampersand) in your tray, there you can check and adjust ASIO buffer sizes. If you don’t do overdubs a larger buffer (i.e. 2048) is most stable. If you like to do overdubs to your record you likely want to adjust a smaller buffer. Try 256 for example, and if that works the next smaller (128) etc.

[HeinParticipant]

Still no luck. I tried all buffer sizes and different options like “Safe”, “Standard”, “Riliable” etc. Does not make any difference.
If I arm more tracks the problem is allmost gone.

[HeinParticipant]

Hello everybody

Its working fine when i use Reaper. So its not a hardware or driver problem but a setting in Sonar. If there is somebody with a solution plz let me know. Else i’m going to buy Reaper.

[Author]

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