Final update for anyone searching the archive:

Screen-capture was causing the delay.

I was revisiting this older patch and realized that I was attempting to capture the gemwin output with my old computer. That caused the video rendering to be later than the audio. Specifically, I was using a [gemhead] to bang [pix_snap] at full resolution.

My solution was to stop using an external MIDI sequencer, instead using [seq], and then transferring the files to a more powerful Windows 10 computer that has built-in X-box screen capture with Win-G.

In the end there was still latency (about 1600ms) that might be my fault between creating the audio and MIDI files. So, I just put a little delay on the audio.

Sam

On Mon, Jul 17, 2017 at 9:52 AM Samuel Burt composer.samuel.burt@gmail.com wrote:

Update:

It seems to happen when Gem ver: 0.93.3 is activated. DSP is not turned on. Maybe, I'm just asking too much of my MacBook Pro from 2009?

Sam

...

Message: 4 Date: Mon, 17 Jul 2017 13:43:50 +0000 From: Samuel Burt composer.samuel.burt@gmail.com To: "pd-list@iem.at" pd-list@iem.at Subject: [PD] IAC Driver Latency Message-ID: <CAFwwLiT2gb90yct0A-0i3EUqi4rr4NBj04uYerc8o= 3rDB7fZg@mail.gmail.com> Content-Type: text/plain; charset="utf-8"

Dear list,

I'm experiencing a long delay between sending MIDI from Logic Pro X to Pd through the IAC driver. It's possibly 5 seconds or more. I see the playback head go past the notes and then I sit and wait to see the numbers appear in the same rhythm some time afterwards.

Has anyone encountered this and found a solution?

Logic Pro X 10.3.1 OS 10.11.6 Pd-0.47-1

Thanks, Sam