VST frame size in AudioMulch

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quackdesign
quackdesign's picture
Joined: June 18, 2011

Noticed that VSTs in the AudioMulch patcher always configure to a frame size of 64 regardless of the "Buffer size (sample frames)" setting in Preferences - Audio Driver. Understand that one can always buffer within a plug if necessary but is there a way to change the frame size that plugs operate on?

(using Mac OSX 10.8.2, AudioMulch 2.2.3)

James

Ross B.
Ross B.'s picture
Joined: April 11, 2009

Hi James,

64 is currently a fixed upper bound since this is the control rate scheduling resolution. It is not a user tunable parameter at this time.

Please also note that the block size is not fixed at 64 frames. It wll be less than 64 frames if the host buffer size is smaller than 64 frames, and it will vary from call to call if the host buffer size is not a multiple of 64.

This was new behavior in AudioMulch 2.2.0 to support lower buffer sizes. Previously it had been fixed at 256 frames with no variation.

Ross.

quackdesign
quackdesign's picture
Joined: June 18, 2011

Hi Ross,

Thanks for your answer. Understand the move to smaller frame size to reduce latency which is especially desirable for live performance. My application of AudioMulch is for modeling signal flows that end up in CE products. I've been using it for several years now and really like the GUI and features you have provided. As we are modeling signal flows that end up on an embedded DSPs we are more concerned with using a specific frame size than achieving lowest latency. Hence it would be really great if we could set the frame size from say 64 to 1024 samples. Is that a possibility for a future update?

James