| DJ-1800 and Mac OS 10.4.11 on Intel Macs |
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Using DJ-1800 on Mac OS 10.4.11 on Intel Macs |
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We have had reports of an audio problem when using DJ-1800 on Mac OS 10.4.11 on an Intel Mac.
We have narrowed the problem down to the "Airport Extreme 2008-001 Update for Tiger".
This page provides information about the problem, and how to fix the problem on your Mac.
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The problem |
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Playing a track in DJ-1800 results in crackles and dropouts in the playing audio.
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What is the cause of the problem? |
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This problem is caused by the "Airport Extreme 2008-001 Update for Tiger", and not by a bug in DJ-1800. This problem also affects other real-time audio applications, such as Apple's Logic and GarageBand.
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When does this problem occur? |
This problem only occurs if:
- You are using Mac OS 10.4.11 on an Intel Mac
- You have installed the "AirPort Extreme Update 2008-001 for Tiger" software update from Apple
- You have not yet installed the "AirPort Extreme Update 2008-002" software update from Apple
The problem is more pronounced if you are using DJ-1800 v3.x and have Pitch Lock turned on. However, it is still present in v3.x with Pitch Lock turned off, and in DJ-1800 v2.2.2, especially when playing several tracks at the same time.
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How can I find out if I have the "AirPort Extreme 2008-001 Update" installed? |
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If you are not using an Intel Mac running Mac OS 10.4.11, then you will not have this update installed and should not be experiencing this problem.
If you are using an Intel Mac running Mac OS 10.4.11, then you can use the following test to find out if you have the "AirPort Extreme 2008-001 Update" installed:
- Select "About This Mac" from the Apple menu, and click on "More Info..." in the "About This Mac" window. This will open the System Profiler application.
- In System Profiler's left-hand pane, click on "AirPort Card" under the "Network" heading. If it lists a "Wireless Card Firmware Version" higher than "1.1.9.3", then you will probably be experiencing this problem.
On a MacBook Pro here, the firmware version displayed by System Profiler was "1.3.5" with the "Airport Extreme 2008-001 Update" installed.
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I use Mac OS 10.5 ("Leopard"). Will I experience this problem? |
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No. This problem only affects Mac OS 10.4.11.
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I use Mac OS 10.4.11 on a PowerPC Mac. Will I experience this problem? |
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No. This problem only occurs on Intel Macs.
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I haven't installed the "Airport Extreme 2008-001 Update for Tiger". Will I experience this problem? |
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No. This problem only occurs once the "Airport Extreme 2008-001 Update for Tiger" has been installed.
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How can I fix this problem? |
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On July 24th 2008, Apple released an AirPort Extreme update to fix this problem. The update is called "AirPort Extreme Update 2008-002", and is only for users of Intel Macs running Tiger.
Apple's release notes for this update say: "This update is recommended for all Intel-based Macintosh computers running Mac OS 10.4.11 (Tiger) and improves the reliability of AirPort connections, and compatibility with Logic, MainStage, GarageBand and other audio applications."
You can install this update via Software Update, or alternatively you can download the update from Apple and install it manually.
Once you have installed this update, you should no longer experience audio dropouts when using Tiger on an Intel Mac with AirPort turned on.
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