What is varispeed pitch shifting?

Varispeed is a method where you change the pitch of an audio file by speeding up or slowing down the playback. This method also changes the tempo and duration of the audio.

How do I use this MCP with Claude or Cursor?

You connect to the Vinkius hosted MCP once. After that, you can simply type your audio math questions directly into Claude, Cursor, or any other compatible client.

Can I calculate the new BPM of a loop?

Yes. You can provide the original BPM and a speed ratio, and the capability will calculate the new tempo for you.

Does this capability handle duration changes?

Yes. It can calculate exactly how long an audio clip will be after you apply a specific speed multiplier.

Do I need to do any manual math?

No. The MCP handles all the semitone, BPM, and duration calculations automatically through its specialized capabilities.

What is the varispeed method?

The varispeed method involves changing the playback speed of an audio file to alter its pitch. This process naturally changes both the tempo (BPM) and the duration of the clip.

How can I find the speed multiplier for a specific semitone shift?

You can use the get_speed_rate capability. Simply provide the number of semitones you want to shift (positive for higher pitch, negative for lower), and it will return the required ratio.

Can I calculate the new BPM after a speed change?

Yes, use the transform_bpm capability. By providing your original BPM and the playback ratio, you will get the new tempo.

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Connect Pitch Shift Speed Ratio Calculator to your AI

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Get exact playback math for varispeed audio adjustments.

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MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 4 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-04

4 capabilities in this set.

Part of 4 available through Pitch Shift Speed Ratio Calculator.

01
Get speed rate
This capability calculates the playback speed multiplier based on a target semitone shift. Use it when you know exactly how many semitones you want to move a sound.
02
Reverse semitone lookup
This capability finds the required semitone change for a specific speed ratio. Use it when you have a target speed in mind and need to know the pitch result.
03
Transform bpm
This capability determines the new tempo of a musical loop after a speed change. Use it to find the resulting BPM once you apply a specific ratio.
04
Transform duration
This capability calculates the new length of an audio clip after it has been sped up or slowed down. Use it to see how a speed ratio affects the total duration.

Real work

What teams actually run

Key Matching

Match the pitch of a vocal sample to a musical loop by calculating the necessary speed multiplier.

Tempo Syncing

Calculate the new BPM of a sample after speeding it up to ensure it fits the project tempo.

Loop Timing

Determine the new length of a drum loop after a pitch shift to keep the grid accurate.

Varispeed Planning

Use semitone lookups to decide how much a track needs to be sped up or slowed down to hit a target.

One connector, every AI

Pitch Shift Speed Ratio Calculator works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put Pitch Shift Speed Ratio Calculator to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

697ms average. Fast in production.

Pitch Shift Speed Ratio Calculator is checked daily against the live service.

Daily averagePeak 894ms

Oct 3Today

Fastest day: 539ms
Slowest day: 894ms
14-day trend: Improving-13%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 4 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Pitch Shift Speed Ratio Calculator, so you can see the experience inside your AI.

It does not authenticate your account with Pitch Shift Speed Ratio Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Pitch Shift Speed Ratio Calculator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_Gvil2nlWeQ3pxDJEsID2B5IB53i5odDwpG4XrplK/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — Pitch Shift Speed Ratio Calculator capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "pitch-shift-speed-ratio-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_Gvil2nlWeQ3pxDJEsID2B5IB53i5odDwpG4XrplK/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Pitch Shift Speed Ratio Calculator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Pitch Shift Speed Ratio Calculator owners hand off.

This MCP is built for music professionals who use varispeed techniques to manipulate audio. It replaces manual math during the creative process.

01
Music Producers
They hand off tempo and pitch matching tasks to the AI to keep the focus on arrangement.
02
DJs
They use the capability to quickly calculate how to match the key and speed of two different tracks.
03
Audio Engineers
They use it to predict how sample manipulation will affect the timing and duration of a project.

FAQ

Questions Pitch Shift Speed Ratio Calculator owners ask.

01
What is varispeed pitch shifting?
Varispeed is a method where you change the pitch of an audio file by speeding up or slowing down the playback. This method also changes the tempo and duration of the audio.
02
How do I use this MCP with Claude or Cursor?
You connect to the Vinkius hosted MCP once. After that, you can simply type your audio math questions directly into Claude, Cursor, or any other compatible client.
03
Can I calculate the new BPM of a loop?
Yes. You can provide the original BPM and a speed ratio, and the capability will calculate the new tempo for you.
04
Does this capability handle duration changes?
Yes. It can calculate exactly how long an audio clip will be after you apply a specific speed multiplier.
05
Do I need to do any manual math?
No. The MCP handles all the semitone, BPM, and duration calculations automatically through its specialized capabilities.
06
What is the varispeed method?
The varispeed method involves changing the playback speed of an audio file to alter its pitch. This process naturally changes both the tempo (BPM) and the duration of the clip.
07
How can I find the speed multiplier for a specific semitone shift?
You can use the get_speed_rate capability. Simply provide the number of semitones you want to shift (positive for higher pitch, negative for lower), and it will return the required ratio.
08
Can I calculate the new BPM after a speed change?
Yes, use the transform_bpm capability. By providing your original BPM and the playback ratio, you will get the new tempo.

Explore

More in Utilities

Connect Pitch Shift Speed Ratio Calculator to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-04

Get speed rate

Reverse semitone lookup

Transform bpm

Transform duration

What teams actually run

Key Matching

Tempo Syncing

Loop Timing

Varispeed Planning

Building your own app? The connector is yours to use.

Pitch Shift Speed Ratio Calculator Connector

Claude Desktop

Music Producers

DJs

Audio Engineers

What is varispeed pitch shifting?

How do I use this MCP with Claude or Cursor?

Can I calculate the new BPM of a loop?

Does this capability handle duration changes?

Do I need to do any manual math?

What is the varispeed method?

How can I find the speed multiplier for a specific semitone shift?

Can I calculate the new BPM after a speed change?

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