i'm using a 1mb array but i'd like to see it update the audio content while recording to it has been started? currently it only updates on Stop, or when the array is full. that leads to blindness while waiting for one or the other to happen.
also, how do i stop recording to array at "when i pressed stop" and then resume from exactly there?

@esaruoho Updating the array while recording will probably cause dropouts. Redrawing onto the screen is hungry and unadvisable in Pd.

You can stop and start from the same point..... using a counter and restarting with a [start index(...... message, index being the next sample after where you stopped.
But.
Complicated.

It will probably be easier to stop audio computation when you press the [stop( button..... which will pause the writing to the array.
That will "freeze" audio for that window..... so you will no longer hear any audio that the window generates...... but other windows being unaffected you should be able to organise the patch to still hear what you need from elsewhere.
Put a [switch] object in the window with [tabwrite~] and toggle audio on off with a message..... 1 on.... 0 off.
Then connect [stop( to a 0 message and [resume( to a 1 message to [switch].
It will cause clicks, but you can stop that, while only losing a tiny bit of precision for the stop point, by "ducking" the audio before and after the [switch] operation like this.....

Use the [line~] output to duck the audio to [tabwrite~] so that there are no clicks on the recording as [switch] stops processing..... the audio recording level will be at 0 when processing stops and then fade up from 0 in 5ms when you start again (3ms after audio is turned on fully in the screenshot).
Set the [pipe] value lower if you wish..... 3 might be sufficient with 2 for the message to [line~].

The clicks might not matter at the stop/resume point of course....... and might make it easier to spot the "join" later.
David.