Is there an iOS oscilloscope like the Schulz Audio Oszillos Mega Scope

Waldemar

As the title says.

Thank you for help and answer.

pseudophysics

hmm

this one goes into that direction, I guess
https://apps.apple.com/de/app/oscilloscope-spectrogram/id1525484137?l=en-GB

uncledave

Hi. I'm not familiar with the reference, but the best iOS audio scope I've found is auSCOPE X by auDSPr. It has 2 channels, adjustable gain and rate, and triggers reasonably well.

Edit: There are quite a few interesting scopes in miRack. They can be accessed from outside by loading miRack as an AUv3 effect.

It might help if you can describe the features that you're looking for.

Poppadocrock

Yea me neither on the reference but there is definitely some options available.

I’m guessing you want something AU?

What are some particular features that Schulz’s has?

Poppadocrock

These are AU, there are a bunch of them available that are not Audio Units, if that fits your use case. Just search oscilloscope on the App Store and a bunch come up.

Mani Consulting Oscilloscope & Spectrogram

As mentioned auScope X

DiscoDSP has Scope AU Visualizer

The free Channel Strip LE has one

Toneboosters has 2 free visualizers, TB GonioMeter and TB Specrogram.

There’s a few more Audio Units out there too…

Poppadocrock

Just stumbled across this professional sound tool for free

Moku

Update this one might only work with a certain device not sure.

Poppadocrock

OSC Audio has Pocket Oscilloscope

Waldemar

Many thanks to all who have replied.

The Schulz Audio Oszillos Mega Scope has the huge advantage that I can superimpose several tracks.
The kick and bass phase alignment is important to me here.

AUv3 is important!

Samu

@Waldemar said:
Many thanks to all who have replied.

The Schulz Audio Oszillos Mega Scope has the huge advantage that I can superimpose several tracks.
The kick and bass phase alignment is important to me here.

AUv3 is important!

These kind of tools would definitely be nice for the iPad indeed...
...out of curiosity how many hosts currently have options to do per track delay in samples / ms which would be needed to phase-align tracks once a phase miss-match is detected and needs to be correct? (I mean most iOS DAWs do not even provide plug-in delay compensation yet).

Eventually these track-delays would affect real-time performance as look-ahead would be have to be added here and there?

For colliding frequencies FF Pro-Q3 is just about the only one out there at the moment.

Keep us all posted if you bump into any or why not try to reach out to schultz.audio and ask if they have any interest in bringing out their stuff for the iPad!?

uncledave

@Waldemar said:
Many thanks to all who have replied.

The Schulz Audio Oszillos Mega Scope has the huge advantage that I can superimpose several tracks.
The kick and bass phase alignment is important to me here.

AUv3 is important!

miRack AUv3 has an 8-in/8-out capability. This will let you route different AUM audio channels to one miRack instance. You can then select a multi-channel scope to view them in tandem. Unfortunately, I can only find a 2-channel scope with a regular time base. There's a 3-channel example, but it seems focused on X-Y plots.

I don't believe any of the scope AUv3s can accept more than one stereo input. You can of course do some tricks with panning and mixing to place 2 different sources in one stereo signal, but the miRack solution is much more graceful.

Samu

@uncledave said:

I don't believe any of the scope AUv3s can accept more than one stereo input. You can of course do some tricks with panning and mixing to place 2 different sources in one stereo signal, but the miRack solution is much more graceful.

AUv3s/Plug-Ins can share data between active instances, this is how Pro-Q 3 works as one example.
This is also how the desktop version of the mentioned plug-in (Mega Scope) works, sharing data between active instances.

No need to for multiple inputs, just multiple instances of the same plug-in running at the same time

It does make me wonder, if schultz.audio was to port Mega Scope to iPadOS how many would fork out a desktop price for it?

RonnieOmelettes

@Waldemar said:
Many thanks to all who have replied.

The Schulz Audio Oszillos Mega Scope has the huge advantage that I can superimpose several tracks.
The kick and bass phase alignment is important to me here.

AUv3 is important!

Audioscope from 4Pockets does that I believe.

Waldemar

@Samu said:

@Waldemar said:
Many thanks to all who have replied.

The Schulz Audio Oszillos Mega Scope has the huge advantage that I can superimpose several tracks.
The kick and bass phase alignment is important to me here.

AUv3 is important!

These kind of tools would definitely be nice for the iPad indeed...
...out of curiosity how many hosts currently have options to do per track delay in samples / ms which would be needed to phase-align tracks once a phase miss-match is detected and needs to be correct? (I mean most iOS DAWs do not even provide plug-in delay compensation yet).

Eventually these track-delays would affect real-time performance as look-ahead would be have to be added here and there?

For colliding frequencies FF Pro-Q3 is just about the only one out there at the moment.

Keep us all posted if you bump into any or why not try to reach out to schultz.audio and ask if they have any interest in bringing out their stuff for the iPad!?

I have already written to Schulz Audio.
Let's see what they write back to me.

aaa

@Samu said:
...out of curiosity how many hosts currently have options to do per track delay in samples / ms which would be needed to phase-align tracks once a phase miss-match is detected and needs to be correct? (I mean most iOS DAWs do not even provide plug-in delay compensation yet).

Not sure how many hosts have it built-in, I can confirm that AUM has a channel strip utility for this purpose. And there are a few AUv3s that serve a similar purpose:

• Stereo Lag Time
• WU: AUSampleDelay (not currently available in US)

And of course any basic allpass filter could do the job.

uncledave

@Samu said:

@uncledave said:

I don't believe any of the scope AUv3s can accept more than one stereo input. You can of course do some tricks with panning and mixing to place 2 different sources in one stereo signal, but the miRack solution is much more graceful.

AUv3s/Plug-Ins can share data between active instances, this is how Pro-Q 3 works as one example.
This is also how the desktop version of the mentioned plug-in (Mega Scope) works, sharing data between active instances.

No need to for multiple inputs, just multiple instances of the same plug-in running at the same time

It does make me wonder, if schultz.audio was to port Mega Scope to iPadOS how many would fork out a desktop price for it?

Thanks for this information. What I meant was that none of the existing oscilloscope AUv3s can accept more than a stereo input. Do you know any of those apps that shares data in this way?

Edit: Also, what miRack implements with its multiple inputs is what you describe, multiple instances of the same plug-in running at the same time. The difference is that you can have more than one instance of miRack using multiple inputs differently.

wim

@uncledave said:
Thanks for this information. What I meant was that none of the existing oscilloscope AUv3s can accept more than a stereo input. Do you know any of those apps that shares data in this way?

AudioScope does this. You put an instance as an FX on any channel that you want to view / control. You can only view (compare) two channels at a time from each instance, but you can freely swap between channels to compare. It has side by side and stacked comparison modes. The scope options aren't extensive, but are useful for mixing and EQ.

You can mix, pan, EQ, filter, and compress all the channels individually from any instance.

uncledave

@wim said:

@uncledave said:
Thanks for this information. What I meant was that none of the existing oscilloscope AUv3s can accept more than a stereo input. Do you know any of those apps that shares data in this way?

AudioScope does this. You put an instance as an FX on any channel that you want to view / control. You can only view (compare) two channels at a time from each instance, but you can freely swap between channels to compare. It has side by side and stacked comparison modes. The scope options aren't extensive, but are useful for mixing and EQ.

You can mix, pan, EQ, filter, and compress all the channels individually from any instance.

Neat. Is AudioScope an oscilloscope that lets you check the timing of different transient waveforms? The AppStore description doesn't mention it, and the pictures only show spectrum analysis. auSCOPE X is an example of an oscilloscope, which is what the original post asked for.

wim

@uncledave said:

@wim said:

@uncledave said:
Thanks for this information. What I meant was that none of the existing oscilloscope AUv3s can accept more than a stereo input. Do you know any of those apps that shares data in this way?

AudioScope does this. You put an instance as an FX on any channel that you want to view / control. You can only view (compare) two channels at a time from each instance, but you can freely swap between channels to compare. It has side by side and stacked comparison modes. The scope options aren't extensive, but are useful for mixing and EQ.

You can mix, pan, EQ, filter, and compress all the channels individually from any instance.

Neat. Is AudioScope an oscilloscope that lets you check the timing of different transient waveforms? The AppStore description doesn't mention it, and the pictures only show spectrum analysis. auSCOPE X is an example of an oscilloscope, which is what the original post asked for.

No, it's just a spectrum analyzer with a few useful view types.

I wasn't suggesting it as a solution for the OP's request, just responding to your question about whether there are any existing AUv3s that can use the shared data between AUv3's. Only for interest's sake as it's a unique and powerful approach.

Waldemar

Many thanks to all who have written.

So if I understand correctly, there is no alternative?
My goal is to get away from the computer and do everything via iOS apps.

uncledave

@wim said:

@uncledave said:

@wim said:

@uncledave said:
Thanks for this information. What I meant was that none of the existing oscilloscope AUv3s can accept more than a stereo input. Do you know any of those apps that shares data in this way?

AudioScope does this. You put an instance as an FX on any channel that you want to view / control. You can only view (compare) two channels at a time from each instance, but you can freely swap between channels to compare. It has side by side and stacked comparison modes. The scope options aren't extensive, but are useful for mixing and EQ.

You can mix, pan, EQ, filter, and compress all the channels individually from any instance.

Neat. Is AudioScope an oscilloscope that lets you check the timing of different transient waveforms? The AppStore description doesn't mention it, and the pictures only show spectrum analysis. auSCOPE X is an example of an oscilloscope, which is what the original post asked for.

No, it's just a spectrum analyzer with a few useful view types.

I wasn't suggesting it as a solution for the OP's request, just responding to your question about whether there are any existing AUv3s that can use the shared data between AUv3's. Only for interest's sake as it's a unique and powerful approach.

Right. My question was about existing oscilloscope AUv3s.

uncledave

@Waldemar said:
Many thanks to all who have written.

So if I understand correctly, there is no alternative?
My goal is to get away from the computer and do everything via iOS apps.

You can use miRack as I suggested here, or create a false stereo signal by panning and mixing, then use auSCOPE X. These will both work with AUM, probably not with a DAW. I can demo either of these, if you're interested.

Waldemar

@uncledave said:

@Waldemar said:
Many thanks to all who have written.

So if I understand correctly, there is no alternative?
My goal is to get away from the computer and do everything via iOS apps.

You can use miRack as I suggested here, or create a false stereo signal by panning and mixing, then use auSCOPE X. These will both work with AUM, probably not with a DAW. I can demo either of these, if you're interested.

Many thanks for the quick response and reply.
Yes, please show me this with miRack and AUM in the context of kick drum and bass.

uncledave

@Waldemar said:

@uncledave said:

@Waldemar said:
Many thanks to all who have written.

So if I understand correctly, there is no alternative?
My goal is to get away from the computer and do everything via iOS apps.

You can use miRack as I suggested here, or create a false stereo signal by panning and mixing, then use auSCOPE X. These will both work with AUM, probably not with a DAW. I can demo either of these, if you're interested.

Many thanks for the quick response and reply.
Yes, please show me this with miRack and AUM in the context of kick drum and bass.

Here is an example of how to use a miRack scope to check the relative timing of two AUM channels.

First, get your instruments set up in AUM, both triggering on the beat.

Then, add miRack FX 16ch to the kick channel. Next, go to the bass channel and select miRack FX 16ch@A1:1 from Multi-bus Audio Unit Instances. This produces the result in the first screenshot.

Open miRack. You'll see the inputs are already connected to the outputs. The inputs are stereo, 1&2 from the kick channel, 3&4 from the bass. Blue color shows the kick connections, red shows the bass. I added a mixer to combine the stereo channels from each input, though it's probably redundant.

Now, add the oscilloscope and set it up as shown (second screenshot). Trigger it from the kick. First use a relatively long TIME setting so it triggers only once per beat. Use some PRE delay so you can see the very start of the transients. You can use the RIGHT index to measure times of points on the screen (you can use the LEFT index, but it reads backwards, confusing). With my quickie setup, the bass starts about 12 ms late. I also saw some jitter. (That delay is one buffer time, resulting from my very slack configuration. Easy thing to fix.)

Once that's working, you can change the TIME to a much shorter value for timing measurement (third screenshot). Switch from CONT. to ONCE and tap RUN to grab a sample. You probably need to pause your sequencer, hit RUN, then play, to reliably capture the initial transient.

uncledave

Just for grins, I set this same scenario up with auSCOPE X, hard-panning the sources left and right, then mixing them. It works fine, but there's no good way to make accurate time measurements.

uncledave

If we trigger on the quarter-note clock from the miRack Host Sync module, we can get a stable display with a fast sweep, while leaving the scope in Continuous mode. This reveals the jitter between successive cycles.

Waldemar

@uncledave said:

@Waldemar said:

@uncledave said:

@Waldemar said:
Many thanks to all who have written.

So if I understand correctly, there is no alternative?
My goal is to get away from the computer and do everything via iOS apps.

You can use miRack as I suggested here, or create a false stereo signal by panning and mixing, then use auSCOPE X. These will both work with AUM, probably not with a DAW. I can demo either of these, if you're interested.

Many thanks for the quick response and reply.
Yes, please show me this with miRack and AUM in the context of kick drum and bass.

Here is an example of how to use a miRack scope to check the relative timing of two AUM channels.

First, get your instruments set up in AUM, both triggering on the beat.

Then, add miRack FX 16ch to the kick channel. Next, go to the bass channel and select miRack FX 16ch@A1:1 from Multi-bus Audio Unit Instances. This produces the result in the first screenshot.

Open miRack. You'll see the inputs are already connected to the outputs. The inputs are stereo, 1&2 from the kick channel, 3&4 from the bass. Blue color shows the kick connections, red shows the bass. I added a mixer to combine the stereo channels from each input, though it's probably redundant.

Now, add the oscilloscope and set it up as shown (second screenshot). Trigger it from the kick. First use a relatively long TIME setting so it triggers only once per beat. Use some PRE delay so you can see the very start of the transients. You can use the RIGHT index to measure times of points on the screen (you can use the LEFT index, but it reads backwards, confusing). With my quickie setup, the bass starts about 12 ms late. I also saw some jitter. (That delay is one buffer time, resulting from my very slack configuration. Easy thing to fix.)

Once that's working, you can change the TIME to a much shorter value for timing measurement (third screenshot). Switch from CONT. to ONCE and tap RUN to grab a sample. You probably need to pause your sequencer, hit RUN, then play, to reliably capture the initial transient.

Hello uncledave,

thank you very much for your help.
I'm going to have a look at it now.