Your browser does not support the video tag.Īvailable in Window->Audio/Midi Setup/Calibrate, this physically measures the round-trip latency of your audio device. It’s the most accurate, most precise and presents the information in a technically correct (the best kind of correct) way. It is the best load indicator of any major DAW on the market. (Note: this is why your DAW’s “CPU” meter almost never matches up with your Task Manager/Activity Monitor/top)Īrdour/Mixbus shows you that information in a pretty graph with some statistical information, and it allows you to sort by load. They report the percentage of time taken to process a buffer divided by the time available. That’s what most DAWs report as “CPU usage”. Did the DAW get the chunk processed in time to output it? That’s all we care about! No buffer completed, no buffer to output.įrom this we can see that what really matters here is time. Now our reverb took 1.5ms to process! We didn’t get the buffer out in time, so the DAW makes a pop or click by sending a partial or empty buffer to the audio device. The other application took up 1ms before it relinquished control back to the processing of the Reverb.
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What happens if we throw a wrench into the works though? The all-knowing all-wise Origin decided to update in the background and keeps taking 100% of our processing time occasionally.Įven though our processor can process that mythical reverb in 24 samples (0.5ms), right when our DAW asked for the processing to happen, something else took over and we have to wait. The processing took 37.5% of the available time. The processing above was done in 48 samples, of the 64 samples of time available. Our DAW has 64 samples worth of time (1.36ms) before it needs to have that buffer processed and ready for output. Our buffer size is 64 samples, and we’ll assume that our DAW is processing in chunks of 64 samples.ĭuring realtime playback, that 0.5ms of processing time corresponds to 24 samples. It can process a ray-tracing reverb in half of a millisecond if that is the sole task.
Let’s imagine that we have an ultra-fast quasi-quantum-super-intel-i25-pro processor. This might sound obvious, but bear with me… No matter how fast the system can process audio, it’s irrelevant if the system is not processing audio.These chunks are usually proportional to your buffer setting. It takes the system time to process audio.At 48,000 sample rate there are 48 samples per millisecond. The distance between two samples corresponds to a real time measurement of (Sample Rate / 1000) milliseconds. The audio stream has a sample rate - Time is divided into a number of discrete samples.
The DAW processes the audio in a buffer corresponding to a number of samples.Many of them improperly label them “CPU” (they don’t measure CPU!), which leads to quite a bit of user confusion. Most DAWs have some functionality to measure load. Switching back to them has left me longing for some of these Mixbus features more than I would have thought otherwise. I use Logic for a major project every week, and I use Digital Performer for another project. I’ve been using Mixbus almost exclusively for the last 70 days or so and I’m enjoying it quite a bit (as long as I don’t expect to touch MIDI…), so I’ve built up quite the enthusiasm. is NOT going to mention flaws of Mixbus, similar to how the live article didn’t mention some of the awesome things about Live.is NOT claiming that these features are not available elsewhere.will mark features available in Ardour.unless I note that it’s new in Mixbus 6.is about any features in Mixbus, not just Mixbus 6.Here we go with another list! This article… More than half of these items are not discussed previously. I don’t like to replicate previous content, but some of the items here have been discussed previously. I hope that this is made clear enough that you can filter it out if you want. I’ve attempted to provide an objective list of features that you can evaluate. I have a big soft spot for Ardour both because of its goals and its functionality.
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