If your Express Scribe foot pedal is not working, first establish where the failure occurs. Confirm the correct model and edition, connect directly to the computer, enable the pedal controller in Express Scribe, run the controller setup wizard, then check Command map / test. If the test sees a press but playback does not respond, investigate command assignments. If the app cannot see the controller, investigate connectivity, drivers, operating-system support and license restrictions instead. NCH documents these controls in its Windows controller options and Mac settings.
First, identify the symptom
Different symptoms point to different fixes. A pedal absent from the operating system is not the same as a pedal recognized by Express Scribe but mapped to the wrong command. Use the following table to avoid changing random settings.
| What you observe | Likely area to check | Safest next step |
|---|---|---|
| Pedal not visible to the computer | USB cable, adapter, port, driver or device hardware | Try direct connection and check operating-system device recognition |
| Computer sees it, Express Scribe does not | Supported model, controller wizard, edition or software version | Review NCH's supported-controller list and controller setup |
| Command map detects presses, playback does not react | Command assignments or playback state | Verify each pedal's mapped action and test with a local audio file |
| Worked during trial but stopped later | Free vs Pro license restrictions | Check licensed edition and the pedal's required license |
| Works in another app but not Express Scribe | Application-specific integration or shortcut mode | Check pedal-maker instructions, not generic USB assumptions |
1. Check the USB connection before changing software
- Disconnect the pedal and reconnect it to the computer directly, rather than through a hub or dock. If your computer needs a USB-C adapter, verify that the adapter supports data, not merely charging.
- Try a second known-working USB port. If your device has a detachable cable, check the vendor-approved cable and connector for visible damage. Do not force a connector.
- Note the pedal manufacturer and precise model designation. Different revisions and superficially similar three-pedal devices may use different control methods.
- If the manufacturer requires a driver or configuration tool, use that manufacturer's official download and installation instructions. Avoid third-party driver-download websites.
- If the pedal fails on more than one compatible computer, document the symptoms and contact the seller or manufacturer rather than assuming Express Scribe is at fault.
What this proves: A successful USB connection narrows the investigation, but it does not prove the device is compatible with Express Scribe or supported by your license.
2. Enable the controller and run Express Scribe setup
In the Windows edition, NCH documents the Options → Control area; on Mac, consult Settings → Control in your installed edition. Menu placement can differ by release. Enable the foot-pedal controller, open the Controller setup wizard, select the detected device where offered, and complete its setup. NCH's setup guide describes the detection method and configuration sequence.
Then open Command map / test for the active controller. Press each pedal separately. The test view should indicate which control is pressed, and it lets you inspect what command the software assigns to it. The current Windows and Mac manuals both describe this test display.
Not every pedal integrates through NCH's controller wizard. Certain independently marketed keyboard-shortcut-emulating pedals use a different setup process. For example, the ECS-FPAE discussed in our compatibility buying guide is configured according to its own instructions. Do not assume the standard wizard is appropriate for that specific model.
3. If Express Scribe detects the pedal, test its commands
Load a simple, non-sensitive local audio file and verify playback using the on-screen controls or keyboard first. If audio plays normally, return to the pedal command map. Assign the actions you actually need—often play/pause, rewind and fast-forward—and test each pedal one at a time. The functions available depend on the controller's configuration and your Express Scribe release.
Keep a record of the original mapping before changing it. If a press is displayed in the controller test but has the wrong effect during playback, the next step is a mapping or application-setting adjustment, not a replacement pedal.
4. Check Express Scribe Free, Pro and expired trials
NCH's current licensing help distinguishes the standard edition from Express Scribe Pro. The feature comparison identifies the AltoEdge USB Foot Pedal for the standard edition and a broader set of compatible controllers for Pro. An Infinity IN-USB or other controller listed as requiring a software license should not be assumed to work in the free edition. See the official license comparison.
NCH also explains that the initial trial may temporarily expose Pro functions. Therefore, a pedal that worked during the trial can stop working when it ends without any USB hardware failure. Check the installed edition, trial status and exact pedal model before reinstalling drivers or buying a replacement.
Avoid a common mistake: software licensing, USB detection and pedal-specific shortcut software are separate questions. A keyboard-emulation accessory may have its own documented workaround, but that does not make every unsupported USB controller compatible with Free.
5. Windows troubleshooting: isolate hardware from app setup
- Check that Windows recognizes the connected device using its standard device-management interface. The hardware may appear under a controller or input-device category rather than a product brand name.
- If Windows reports a driver or device error, consult the pedal manufacturer's documentation. Install or update only a supported driver from a trusted official source.
- Close and reopen Express Scribe after required driver setup, then revisit Options → Control and the controller wizard.
- Use the Command map / test screen and compare pedal input with software playback controls.
- If two different apps use a pedal-related background utility, check for vendor-documented conflicts before changing background applications.
Windows recognizing a generic USB input device is useful evidence, but Express Scribe must still support its control protocol. NCH's current supported controllers page is the right next check.
6. macOS troubleshooting: check device, compatibility and settings
- Verify the pedal is connected through a working data-capable port or adapter. When possible, initially bypass a hub.
- Use the Mac's system hardware information to check whether a USB device appears; the displayed name may not match the retail product name.
- Open Express Scribe's Settings → Control, enable the foot pedal, use its setup wizard where supported, and test pedal presses in Command map / test.
- Check the exact macOS release and Mac processor generation against the vendor's support notes. An old product listing saying “Mac compatible” is not proof of compatibility with a recent Apple Silicon system.
- If the vendor requires a helper app, confirm it supports your system version and follow the vendor's current instructions.
NCH's Mac controller documentation identifies supported families, but controller support does not guarantee compatibility with every future operating-system version. If model and OS support are unclear, ask NCH or the hardware maker before paying for software or replacing the pedal.
7. When a foot pedal is unsupported
Some pedals are designed for other vendors' dictation systems and use proprietary integrations. Generic USB recognition alone cannot make those controls usable in Express Scribe. NCH separates recommended, legacy and other controllers; it cautions that functionality or technical support may be limited for certain third-party models. Check the exact model and the Mac or Windows list, plus manufacturer support notes.
Before buying anything, consult the Express Scribe foot-pedal compatibility guide for model-by-model Free/Pro selection and differences in keyboard-shortcut accessories. That article focuses on buying a pedal; this page focuses on diagnosing one you already own.
8. What to collect before contacting support
- Exact pedal model and hardware revision (from label or invoice).
- Operating system and version; Windows edition or macOS version plus Intel/Apple Silicon model.
- Express Scribe version, licensed edition and trial status.
- Connection method: direct USB, adapter, hub or wireless receiver.
- Whether the operating system recognizes the device.
- Whether the controller wizard finds it and the command map indicates presses.
- Any official driver or helper-app version and the wording of an error message.
Contact NCH Software support for documented software/controller behavior or the hardware manufacturer for a connection or driver issue. Avoid sharing confidential dictation audio when asking for troubleshooting help.
Frequently asked questions
Why is my USB foot pedal not detected in Express Scribe?
Check the connection and whether the computer sees the device, then confirm the pedal appears on NCH's supported-controller list and is configured in the controller setup wizard. An unsupported model or edition can prevent app detection despite a functioning USB port.
Does a pedal stop working when the Express Scribe trial expires?
It can, if the pedal requires Pro features that were temporarily available during the trial. Check your actual installed license and NCH's licensing comparison.
My pedal is detected but play, rewind or fast-forward does the wrong thing. What now?
Use the Command map / test screen to observe input and inspect which command is assigned to each pedal. Test with an ordinary local audio file before changing hardware.
Will any three-button USB pedal work with Express Scribe?
No. USB form factor and number of pedals do not establish compatibility. Check the exact hardware model, revision, software version and licensing requirements.
Will my older pedal work on a modern Mac?
Not necessarily. Check the manufacturer's support for your particular macOS version and processor; older “Mac compatible” claims can refer to much older operating-system releases.
Research method and official references
Reviewed against publicly available NCH Software online documentation on November 8, 2026. This is a source-based troubleshooting guide: we did not attach a pedal, test detection, validate third-party hardware revisions, or measure compatibility on specific Windows and Mac devices. Settings can move between releases. Use your installed app's Help menu and the vendor for version-specific decisions.