Recently some rather strange things have been occurring as regards sound playback when I am using Leopard on my 1.83 Core Duo MacBook.
It will be working flawlessly, and then it will cut out silence with short bursts of sound, which speed up in frequency until whatever sound I was playing comes back to playing normally. For example:
Link to MP3 (~100k)
At first it occurred when I was using Logic Pro 8, but now it will happen sometimes when just playing music back through iTunes. It happens relatively rarely, maybe once every half an hour or so playing iTunes, more frequently when working with Logic.
Of importance is that I'm using a Tascam US-122 USB audio interface. I have only ever noticed it when this is in use, and suspect this may be the cause. I am yet to test to see if it happens when using onboard audio, will be doing that shortly.
Of interest, the 'strange noises' here were recorded using WireTap set to record 'Mac Audio' - i.e. all system sound (you can also set it up to record specific programs etc). As it captured the strange sounds, it confirms that the problem is not somewhere between my interface and my speakers, and reduces the likelihood of a hardware failure on the interface in my opinion.
The interface is not officially supported for Leopard but has been working flawlessly for months and has the latest drivers installed.
Does anyone have any idea what to do to troubleshoot this problem? Half the pain is that it occurs relatively rarely and then rectifies itself rapidly making it difficult to play around to find a cure.
I'll be posting about this on the Audio section of Mac Forums also probably, but thought I would try here first.
Many thanks in advance for any input you can offer.
It will be working flawlessly, and then it will cut out silence with short bursts of sound, which speed up in frequency until whatever sound I was playing comes back to playing normally. For example:
Link to MP3 (~100k)
At first it occurred when I was using Logic Pro 8, but now it will happen sometimes when just playing music back through iTunes. It happens relatively rarely, maybe once every half an hour or so playing iTunes, more frequently when working with Logic.
Of importance is that I'm using a Tascam US-122 USB audio interface. I have only ever noticed it when this is in use, and suspect this may be the cause. I am yet to test to see if it happens when using onboard audio, will be doing that shortly.
Of interest, the 'strange noises' here were recorded using WireTap set to record 'Mac Audio' - i.e. all system sound (you can also set it up to record specific programs etc). As it captured the strange sounds, it confirms that the problem is not somewhere between my interface and my speakers, and reduces the likelihood of a hardware failure on the interface in my opinion.
The interface is not officially supported for Leopard but has been working flawlessly for months and has the latest drivers installed.
Does anyone have any idea what to do to troubleshoot this problem? Half the pain is that it occurs relatively rarely and then rectifies itself rapidly making it difficult to play around to find a cure.
I'll be posting about this on the Audio section of Mac Forums also probably, but thought I would try here first.
Many thanks in advance for any input you can offer.
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