BPM Delay Calculator Discussion - What's Your Workflow?

[iconvv]

Hey everyone,

I've been working on some BPM-related tools lately and got curious about how you all handle BPM delay calculations in your daily workflow. This is something I always found myself needing to calculate manually or through various methods, so I thought I'd start a discussion about it.

The Challenge
For those who might not be familiar, BPM delay calculations are essential for:

Sync delays with tempo: Setting up delay effects that lock perfectly to the beat
Delay time compensation: When you need to calculate exact delay times for different note values
Tempo-synced modulation: LFO rates, filter sweeps, etc. that need to match BPM
Mixing and production: Quick calculations when you're in the zone and don't want to break flow with manual math
My Current Approach
I've been using a few different methods:

1.
Mental math (when I can remember the formulas)
2.
Various online calculators (but they're often limited)
3.
DAW built-in features (when they have what I need)
4.
Spreadsheet formulas (my go-to for consistency)
The main pain points I keep running into:

Multiple note values: Sometimes I need eighth note delays, sometimes sixteenth, sometimes dotted quarters
Quick switching: Need to compare different delay times rapidly
Accuracy: Manual calculations can introduce errors when you're in creative mode
Limited options: Most calculators focus on just basic delay times
What I'm Working With
I've been tinkering with a BPM delay calculator that handles multiple note values automatically:

Standard note values: Whole, half, quarter, eighth, sixteenth, thirty-second
Dotted notes: Dotted quarter, dotted eighth, etc.
Triplet variations: Quarter note triplets, eighth note triplets
Real-time calculation: As you change BPM or note values
Copy/paste friendly: Easy to grab the numbers for your DAW
The idea is to have one tool that covers all the common delay calculations I need without having to switch between multiple resources.

Questions for the Community
I'd love to hear about your experiences:

1.
What BPM delay calculations do you find yourself doing most often?
2.
Do you have a preferred method or tool for these calculations?
3.
What features would make a BPM delay calculator most useful for your workflow?
4.
Are there any specific use cases where existing tools fall short?
5.
How do you handle tempo changes within a track for delay calculations?
I'm particularly interested in hearing from people who:

Work with complex time signatures
Need precise delay calculations for live performance
Deal with tempo automation regularly
Have specific workflow requirements I might not be considering
The Tool I've Been Using
For anyone interested, I've been testing a calculator at TapBPM Hub https://tapbpmhub.com that includes a dedicated BPM delay section. It covers all the standard note values and dotted variations I typically need. The interface is pretty straightforward - you input your BPM, select your note value, and it gives you the exact delay time in milliseconds.

It's been handy for quick calculations during mixing sessions, especially when I need to compare different delay times rapidly or when I'm working with tempo-synced effects.

Looking Forward
I'm always looking to improve these tools based on real-world usage, so any feedback or suggestions would be incredibly valuable. Whether it's additional note values, different calculation methods, or workflow improvements, I'd love to hear what would make your life easier.

What are your thoughts? How do you handle BPM delay calculations in your setup?

[Hoffstein]

Not sure if this is a helpful response, but every delay plug-in I have already incorporates some form of switching between msec and tempo-based values (sync'd with DAW). They seem to support pretty much all note values, including dotted and triplets. So I guess I'm confused why you (or anyone for that matter) is reliant on manual or offline calculations to paste back into the DAW.

The one pain point I've encountered is if the tempo changes and a sync'd delay exhibits a doppler effect as it adjusts to the new tempo. This could usually be solved through automation or using multiple delays set to different values, but newer products like Ripple Delay (https://process.audio/en/products/ripple) provide an option to automatically handle this scenario without weird artifacts.

[BertKoor]

I've got (made) what I need, thx.
https://bertkoor.nl/MusicCalc.html

[iconvv]

Not sure if this is a helpful response, but every delay plug-in I have already incorporates some form of switching between msec and tempo-based values (sync'd with DAW). They seem to support pretty much all note values, including dotted and triplets. So I guess I'm confused why you (or anyone for that matter) is reliant on manual or offline calculations to paste back into the DAW.

The one pain point I've encountered is if the tempo changes and a sync'd delay exhibits a doppler effect as it adjusts to the new tempo. This could usually be solved through automation or using multiple delays set to different values, but newer products like Ripple Delay (https://process.audio/en/products/ripple) provide an option to automatically handle this scenario without weird artifacts.

Hey, I totally understand that pain point you mentioned! It's frustrating when your perfectly synced delay suddenly starts warbling like crazy whenever the tempo changes.

I actually spent a few days last week adding a new feature to my website specifically to tackle this exact issue. It's called the "Tempo Transition Simulator" and basically it lets you generate smooth transition curves between different BPMs instead of those jarring jumps.

You can set up how long you want the transition to take (anywhere from 0.1 seconds to several minutes), choose between linear or exponential curves, and it will show you exactly how the delay time will change over time. Then you can export all that data and use it to automate your delay plugins in your DAW.

The idea is that instead of your delay suddenly jumping from 500ms to 428ms when the tempo changes, it smoothly morphs between those values over whatever timeframe you choose. Much nicer for the ears!

I'd love for you to check it out on my site and see if it actually helps with the doppler issues you're dealing with. Always looking to hear what actual producers think - does it actually solve the problem in a practical way?

Let me know what you think if you get a chance to try it!

https://tapbpmhub.com/bpm-delay-calculator

[iconvv]

I've got (made) what I need, thx.
https://bertkoor.nl/MusicCalc.html

It's quite impressive, with a wealth of features—definitely worth exploring.