# TaskSpeech Lab — Learn How to Engineer for ASR

> Learn How to Engineer for ASR (iPhone/iPad app by n24x7 Corp..)

- Source: https://appshunter.io/ios/app/taskspeech-lab/id1531565952 (this page in markdown: same URL + `.md`)
- Developer: [n24x7 Corp.](https://appshunter.io/developer/885436165)
- Category: Utilities, Developer Tools
- Price: Free
- Age rating: 4+
- Requires: iOS 12.4 · 24 MB
- Languages: English
- Released: 2020-12-22
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/taskspeech-lab/id1531565952/reviews.md

## What is TaskSpeech Lab?

TaskSpeech® Lab (TSL) is a standalone speech & voice laboratory.
 
With this analysis app, you can explore automatic speech recognition (ASR) under various controlled conditions. TSL provides both educational and speech-research value in a small-footprint package, and is for designers, programmers, researchers, teachers and learners. It gives you direct hands-on experience, promoting a deeper understanding of ASR's inner workings. The resulting knowledge informs the design, development and testing of any speech and voice applications you may be considering.


- Comes with default vocabulary and settings -- just download, tap and speak.
- You can create your own vocabulary and settings easily.
- Everything is driven by a parameter (text) file: you edit or create new parameter files to run your experiments.
- No need to be connected to the internet, everything runs locally on the iPhone.
- Learn about grammars and language models, end-pointing, nBest and error types.
- Sample files and example vocabularies available free online.
- Uses free, speaker-independent, open source, connected speech from CMU PocketSphinx project.
- Useful for personal experimentation, classroom and lab instruction, workshop presentations and more.


## Version history (last 2 releases)

### 1.01 — 2021-03-12

Minor visual updates.

### 1.0 — 2020-12-22

No release notes.

## Apps similar to TaskSpeech Lab

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Voice Expert](https://appshunter.io/ios/app/voice-expert/id1579815237) | 3.8 (6) | Free | Utilities |
| [iNoZo](https://appshunter.io/ios/app/inozo/id1530817818) | — | Free | Utilities |
| [Speech~to~Text](https://appshunter.io/ios/app/speechtotext/id1632055131) | 5.0 (1) | Free | Utilities |
| [Dice Goblin](https://appshunter.io/ios/app/dice-goblin/id1543604805) | 4.0 (1) | Free | Utilities |
| [Voice Memo Recorder - Pro](https://appshunter.io/ios/app/voice-memo-recorder-pro/id1385001234) | 3.5 (4) | Free | Utilities |
| [ABC-BMS](https://appshunter.io/ios/app/abc-bms/id1597074571) | 1.8 (21) | Free | Utilities |

## More apps by n24x7 Corp.

- [TS+SW](https://appshunter.io/ios/app/ts-plus-sw/id1567248136)
- [TS+ YesNo](https://appshunter.io/ios/app/ts-plus-yesno/id1584182263)

All apps by n24x7 Corp.: https://appshunter.io/developer/885436165

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*