Express Scribe for Linux -

Express Scribe is a professional audio player software for PC, Mac or Linux designed to assist the transcription of audio recordings. It is installed on the typists computer and can be controlled using a transcription foot pedal or using the keyboard (with hot keys). This computer transcriber application also offers valuable features for typists including variable speed playback, multi-channel control, file management and more. This program is free.

The full features list of Express Scribe transcription playback software follows but a quick way to test is to simply download and install it. You dont need to purchase anything and it only takes a couple of minutes to complete downloading and installation.

Features
Variable speed playback (constant pitch).
Supports many professional foot pedals which connect to the game, serial or USB port to control playback. More info...
Uses hot keys to control playback when using other software (eg. Word).
Ability to dock both analog and digital portable recorders to load recordings.
Works with Microsoft Word and all major word-processor applications.
Automatically receives and loads files by internet (FTP), email or over a local computer network.
Automatically sends typing to the person who dictated the work.
Works with speech recognition software such as Dragon Naturally Speaking to automatically convert speech to text.
Loads CD audio directly - listen as it loads in the background.
Integrate with dictation management systems using the Express Scribe SDK.
Works with FastFox typing utility to turn difficult medical/legal phrases and common terms into mere shortcuts from your keyboard.
Express Scribe is free.

Note:
There are two options for running Express Scribe on the Linux operating system.
Option 1: Native Linux Exe
Option 2: WINE Install

You can choose them between the download link 1 and download link 2.