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#815290 06/25/24 07:46 PM
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When BIAB compiles a Real Track, I noticed some chord transitions are not seamless. How do you deal with these?


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Originally Posted by tony10000
When BIAB compiles a Real Track, I noticed some chord transitions are not seamless. How do you deal with these?
Can you give any examples?

The most common way is to report this to PG Music Support, as they have created the RealTracks, and sometimes can offer a fix if they become aware of any issues.


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Originally Posted by AudioTrack
Originally Posted by tony10000
When BIAB compiles a Real Track, I noticed some chord transitions are not seamless. How do you deal with these?
Can you give any examples?

The most common way is to report this to PG Music Support, as they have created the RealTracks, and sometimes can offer a fix if they become aware of any issues.

I double-checked and I guess it happens when BIAB is playing. When it is rendered to a WAV file, it is OK.


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Originally Posted by tony10000
I double-checked and I guess it happens when BIAB is playing. When it is rendered to a WAV file, it is OK.
There is an option under Song Settings (Control-N) that might resolve the BIAB playing issue.
Try this and see if it makes a difference:
[Linked Image - Only viewable when logged in]


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Originally Posted by AudioTrack
Originally Posted by tony10000
I double-checked and I guess it happens when BIAB is playing. When it is rendered to a WAV file, it is OK.
There is an option under Song Settings (Control-N) that might resolve the BIAB playing issue.
Try this and see if it makes a difference:
[Linked Image - Only viewable when logged in]
Thanks...I will check that one out if it happens again!


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Originally Posted by tony10000
When BIAB compiles a Real Track, I noticed some chord transitions are not seamless. How do you deal with these?

Tony, what soundcard and driver are you using?

Those glitches you hear in playback but not in the exported file are often a result of using factory sound and default drivers. They're really not designed to handle the multiple files we run in sync with synths. They can't handle the massive load so to reasonably keep up, they drop data which we hear as pops, drops, stutters and more. However, during the export it has sufficient time to render it properly.


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This could be any of several things, some of which have been identified. Rendering to a WAVE file is done at the speed it can do that, and it would not have the audio glitches that real-time processing has. Some possibilities:

Audio card driver up to date. Windows up to date.
Windows update just reactivated a device you don't want, such as the HD speaker in a monitor screen. Yes, Windows updates do that.
Try the WAS driver in Preferences, Audio. If you are using the WAS driver, try the ASIO driver.
In ASIO, get into the ASIO control panel and experiment with the buffer settings. Raise them to start.
The setting AudioTrack showed above: this song has playback problems.
Something running in the background; try rebooting and running only BIAB
Reduce programs that start automatically on bootup. If you need help how to fix that, let us know.
Is it one RealTrack only? Does it happen if you run many RealTracks in the same song?
I could go on ...

As Herb said, tell us about your soundcard. Also about your processor type and speed and cores.

Are you anywhere near Rocky River?


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Originally Posted by Guitarhacker
Originally Posted by tony10000
When BIAB compiles a Real Track, I noticed some chord transitions are not seamless. How do you deal with these?

Tony, what soundcard and driver are you using?

Those glitches you hear in playback but not in the exported file are often a result of using factory sound and default drivers. They're really not designed to handle the multiple files we run in sync with synths. They can't handle the massive load so to reasonably keep up, they drop data which we hear as pops, drops, stutters and more. However, during the export it has sufficient time to render it properly.

I am using a Behringer UMC204HD interface and the default Windows drivers. It shows 30ms latency. The "seams" do not show up often, but when they do, they are noticeable and I have a sensitive ear.


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Originally Posted by Matt Finley
This could be any of several things, some of which have been identified. Rendering to a WAVE file is done at the speed it can do that, and it would not have the audio glitches that real-time processing has. Some possibilities:

Audio card driver up to date. Windows up to date.
Windows update just reactivated a device you don't want, such as the HD speaker in a monitor screen. Yes, Windows updates do that.
Try the WAS driver in Preferences, Audio. If you are using the WAS driver, try the ASIO driver.
In ASIO, get into the ASIO control panel and experiment with the buffer settings. Raise them to start.
The setting AudioTrack showed above: this song has playback problems.
Something running in the background; try rebooting and running only BIAB
Reduce programs that start automatically on bootup. If you need help how to fix that, let us know.
Is it one RealTrack only? Does it happen if you run many RealTracks in the same song?
I could go on ...

As Herb said, tell us about your soundcard. Also about your processor type and speed and cores.

Are you anywhere near Rocky River?

Processor is a Ryzen 5700G. 8 cores. 16 threads. 3.8 GHz base clock.

Rocky River is probably 13-15 miles away.


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I am going to switch from WAS to ASIO drivers and experiment with different quality settings.


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Originally Posted by tony10000
I am going to switch from WAS to ASIO drivers and experiment with different quality settings.

I switched to ASIO with 512 size buffer (what I generally use) and changed resample quality to best and seems to be much smoother.

Thanks for the suggestions!


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UPDATE...I just did a test--soloed the drum track:

_BLUETAM.STY

RealDrums=BluesShuffleHard

16 bar 1-2#-5-4 progression

Drums struggle at bars 9-10


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Originally Posted by tony10000
UPDATE...I just did a test--soloed the drum track:

_BLUETAM.STY

RealDrums=BluesShuffleHard

16 bar 1-2#-5-4 progression

Drums struggle at bars 9-10
I created the above progression, but couldn't repeat any issue with the drums.
Was this with or without the playback problems check box selected?


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Originally Posted by AudioTrack
Originally Posted by tony10000
UPDATE...I just did a test--soloed the drum track:

_BLUETAM.STY

RealDrums=BluesShuffleHard

16 bar 1-2#-5-4 progression

Drums struggle at bars 9-10
I created the above progression, but couldn't repeat any issue with the drums.
Was this with or without the playback problems check box selected?

Both...


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You can hear the stutters here:



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Like at the end of measure 2, 6 or 8?

Stutter means something different to me. I remember when BIAB stuttered because of overloaded processing, often based on other programs running and not the fault of BIAB, but that stuttering caused the beat to falter. I'm not hearing that here. The time seems rock solid. The little hits are likely a quick bounce or double bounce of the sticks on a tom. It adds realism and nuance.

Unless you are hearing something else I'm not, this track sounds fine to me.

What do others think?


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You mentioned previously that "Drums struggle at bars 9-10"

I've listened multiple times. I couldn't hear anything that sounded incorrect at all, and especially anything I would call a struggle, or a stutter, or an odd timing beat. I really just heard how I would expect a real drum kit to be played and how it should sound. There are some lead in phrases at bars 3, at 7 (on the floor tom) and again at 9, but I am sure that these were a deliberate part of the performance.

Last edited by AudioTrack; 06/26/24 09:18 PM.

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On this one, I hear it before bars 4 and 11.


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This sounds OK here also.

Adding to Matt's comments if my DAW stutters or has other problems increasing my audio interface's buffers always solves the problem.


Unclear if the pianist is a total beginner or a professional jazz player?

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Originally Posted by tony10000
Originally Posted by Guitarhacker
Originally Posted by tony10000
When BIAB compiles a Real Track, I noticed some chord transitions are not seamless. How do you deal with these?

Tony, what soundcard and driver are you using?

Those glitches you hear in playback but not in the exported file are often a result of using factory sound and default drivers. They're really not designed to handle the multiple files we run in sync with synths. They can't handle the massive load so to reasonably keep up, they drop data which we hear as pops, drops, stutters and more. However, during the export it has sufficient time to render it properly.

I am using a Behringer UMC204HD interface and the default Windows drivers. It shows 30ms latency. The "seams" do not show up often, but when they do, they are noticeable and I have a sensitive ear.


Reading down the posts, it looks like you switched to ASIO. I looked at the specs and it seemed like it uses a proprietary driver, but if it runs with ASIO, that is the driver you really do want to use, certainly not the windows default driver.

I use 44.1k sample rate and 24 bit depth. Nothing is really gained by going to a higher setting unless you are writing for film/TV which want 48k/24.

30ms is not a good latency rate. That is definitely noticeable and if you're trying to play/record in sync, that's nearly impossible. You ideally want to be well under 10ms and preferably below 5ms for the best results.


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www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

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