a11y: screen reader and keyboard improvements

- Audio player: aria-labels for Play/Pause, Loop, Mute, Close; labelled playback and volume sliders
- Generation: aria-labels for Generate speech and Fine tune instructions buttons
- Voice cards: focusable, labelled, Enter/Space to select
- History rows: focusable, labelled, Enter/Space to play; transcript textarea labelled
- Voices tab: focusable rows, labelled, Enter/Space to edit; Actions button labelled
- Model management: focusable model rows and labelled Download/Delete buttons
- Server tab: regions with aria-label and tabIndex for Connection, Status, App Updates
- Stories: focusable story rows, labelled, Enter/Space to select; Actions and track editor buttons labelled
- Voice profile samples: Play/Pause/Stop and mini-player slider labelled

Tested with NVDA and Narrator on Windows. See docs/PR-ACCESSIBILITY.md for full description.

Made-with: Cursor

app/src/components/AudioPlayer/AudioPlayer.tsx

@@ -1,6 +1,6 @@
 import { useQuery } from '@tanstack/react-query';
 import { Pause, Play, Repeat, Volume2, VolumeX, X } from 'lucide-react';
-import { useEffect, useMemo, useRef, useState } from 'react';
+import { useEffect, useId, useMemo, useRef, useState } from 'react';
 import WaveSurfer from 'wavesurfer.js';
 import { Button } from '@/components/ui/button';
 import { Slider } from '@/components/ui/slider';
@@ -12,6 +12,7 @@ import { usePlatform } from '@/platform/PlatformContext';
 
 export function AudioPlayer() {
   const platform = usePlatform();
+  const volumeLabelId = useId();
   const {
     audioUrl,
     audioId,
@@ -831,6 +832,13 @@ export function AudioPlayer() {
             disabled={isLoading || duration === 0}
             className="shrink-0"
             title={duration === 0 && !isLoading ? 'Audio not loaded' : ''}
+            aria-label={
+              duration === 0 && !isLoading
+                ? 'Audio not loaded'
+                : isPlaying
+                  ? 'Pause'
+                  : 'Play'
+            }
           >
             {isPlaying ? <Pause className="h-5 w-5" /> : <Play className="h-5 w-5" />}
           </Button>
@@ -845,6 +853,8 @@ export function AudioPlayer() {
                 max={100}
                 step={0.1}
                 className="w-full"
+                aria-label="Playback position"
+                aria-valuetext={`${formatAudioDuration(currentTime)} of ${formatAudioDuration(duration)}`}
               />
             )}
             {isLoading && (
@@ -872,26 +882,33 @@ export function AudioPlayer() {
             onClick={toggleLoop}
             className={isLooping ? 'text-primary' : ''}
             title="Toggle loop"
+            aria-label={isLooping ? 'Stop looping' : 'Loop'}
           >
             <Repeat className="h-4 w-4" />
           </Button>
 
           {/* Volume Control */}
-          <div className="flex items-center gap-2 shrink-0 w-[120px]">
+          <div className="flex items-center gap-2 shrink-0 w-[120px]" role="group" aria-label="Volume">
             <Button
               variant="ghost"
               size="icon"
               onClick={() => setVolume(volume > 0 ? 0 : 1)}
               className="h-8 w-8"
+              aria-label={volume > 0 ? 'Mute' : 'Unmute'}
             >
               {volume > 0 ? <Volume2 className="h-4 w-4" /> : <VolumeX className="h-4 w-4" />}
             </Button>
+            <span id={volumeLabelId} className="sr-only">
+              Volume level, {Math.round(volume * 100)}%
+            </span>
             <Slider
               value={[volume * 100]}
               onValueChange={handleVolumeChange}
               max={100}
               step={1}
               className="flex-1"
+              aria-labelledby={volumeLabelId}
+              aria-valuetext={`${Math.round(volume * 100)}%`}
             />
           </div>
 
@@ -902,6 +919,7 @@ export function AudioPlayer() {
             onClick={handleClose}
             className="shrink-0"
             title="Close player"
+            aria-label="Close player"
           >
             <X className="h-5 w-5" />
           </Button>

app/src/components/Generation/FloatingGenerateBox.tsx

@@ -300,6 +300,13 @@ export function FloatingGenerateBox({
                     disabled={isPending || !selectedProfileId}
                     className="h-10 w-10 rounded-full bg-accent hover:bg-accent/90 hover:scale-105 text-accent-foreground shadow-lg hover:shadow-accent/50 transition-all duration-200"
                     size="icon"
+                    aria-label={
+                      isPending
+                        ? 'Generating...'
+                        : !selectedProfileId
+                          ? 'Select a voice profile first'
+                          : 'Generate speech'
+                    }
                   >
                     {isPending ? (
                       <Loader2 className="h-4 w-4 animate-spin" />
@@ -336,6 +343,11 @@ export function FloatingGenerateBox({
                               ? 'bg-accent text-accent-foreground border border-accent hover:bg-accent/90'
                               : 'bg-card border border-border hover:bg-background/50',
                           )}
+                          aria-label={
+                            isInstructMode
+                              ? 'Fine tune instructions, on'
+                              : 'Fine tune instructions'
+                          }
                         >
                           <SlidersHorizontal className="h-4 w-4" />
                         </Button>

app/src/components/History/HistoryTable.tsx

@@ -253,10 +253,17 @@ export function HistoryTable() {
               return (
                 <div
                   key={gen.id}
+                  role="button"
+                  tabIndex={0}
                   className={cn(
                     'flex items-stretch gap-4 h-26 border rounded-md p-3 bg-card hover:bg-muted/70 transition-colors text-left w-full',
                     isCurrentlyPlaying && 'bg-muted/70',
                   )}
+                  aria-label={
+                    isCurrentlyPlaying
+                      ? `Sample from ${gen.profile_name}, ${formatDuration(gen.duration)}, ${formatDate(gen.created_at)}. Playing. Press Enter to restart.`
+                      : `Sample from ${gen.profile_name}, ${formatDuration(gen.duration)}, ${formatDate(gen.created_at)}. Press Enter to play.`
+                  }
                   onMouseDown={(e) => {
                     // Don't trigger play if clicking on textarea or if text is selected
                     const target = e.target as HTMLElement;
@@ -265,6 +272,14 @@ export function HistoryTable() {
                     }
                     handlePlay(gen.id, gen.text, gen.profile_id);
                   }}
+                  onKeyDown={(e) => {
+                    const target = e.target as HTMLElement;
+                    if (target.closest('textarea')) return;
+                    if (e.key === 'Enter' || e.key === ' ') {
+                      e.preventDefault();
+                      handlePlay(gen.id, gen.text, gen.profile_id);
+                    }
+                  }}
                 >
                   {/* Waveform icon */}
                   <div className="flex items-center shrink-0">
@@ -293,6 +308,7 @@ export function HistoryTable() {
                       value={gen.text}
                       className="flex-1 resize-none text-sm text-muted-foreground select-text"
                       readOnly
+                      aria-label={`Transcript for sample from ${gen.profile_name}, ${formatDuration(gen.duration)}`}
                     />
                   </div>
 

app/src/components/ServerSettings/ConnectionForm.tsx

@@ -57,7 +57,11 @@ export function ConnectionForm() {
   }
 
   return (
-    <Card>
+    <Card
+      role="region"
+      aria-label="Server Connection"
+      tabIndex={0}
+    >
       <CardHeader>
         <CardTitle>Server Connection</CardTitle>
       </CardHeader>

app/src/components/ServerSettings/ModelManagement.tsx

@@ -278,9 +278,25 @@ interface ModelItemProps {
 function ModelItem({ model, onDownload, onDelete, isDownloading, formatSize }: ModelItemProps) {
   // Use server's downloading state OR local state (for immediate feedback before server updates)
   const showDownloading = model.downloading || isDownloading;
-  
+
+  const statusText = model.loaded
+    ? 'Loaded'
+    : showDownloading
+      ? 'Downloading'
+      : model.downloaded
+        ? 'Downloaded'
+        : 'Not downloaded';
+  const sizeText =
+    model.downloaded && model.size_mb && !showDownloading ? `, ${formatSize(model.size_mb)}` : '';
+  const rowLabel = `${model.display_name}, ${statusText}${sizeText}. Use Tab to reach Download or Delete.`;
+
   return (
-    <div className="flex items-center justify-between p-3 border rounded-lg">
+    <div
+      className="flex items-center justify-between p-3 border rounded-lg"
+      role="group"
+      tabIndex={0}
+      aria-label={rowLabel}
+    >
       <div className="flex-1">
         <div className="flex items-center gap-2">
           <span className="font-medium text-sm">{model.display_name}</span>
@@ -314,17 +330,27 @@ function ModelItem({ model, onDownload, onDelete, isDownloading, formatSize }: M
               variant="outline"
               disabled={model.loaded}
               title={model.loaded ? 'Unload model before deleting' : 'Delete model'}
+              aria-label={
+                model.loaded
+                  ? 'Unload model before deleting'
+                  : `Delete ${model.display_name}`
+              }
             >
               <Trash2 className="h-4 w-4" />
             </Button>
           </div>
         ) : showDownloading ? (
-          <Button size="sm" variant="outline" disabled>
+          <Button size="sm" variant="outline" disabled aria-label={`${model.display_name} downloading`}>
             <Loader2 className="h-4 w-4 mr-2 animate-spin" />
             Downloading...
           </Button>
         ) : (
-          <Button size="sm" onClick={onDownload} variant="outline">
+          <Button
+            size="sm"
+            onClick={onDownload}
+            variant="outline"
+            aria-label={`Download ${model.display_name}`}
+          >
             <Download className="h-4 w-4 mr-2" />
             Download
           </Button>

app/src/components/ServerSettings/ServerStatus.tsx

@@ -10,7 +10,11 @@ export function ServerStatus() {
   const serverUrl = useServerStore((state) => state.serverUrl);
 
   return (
-    <Card>
+    <Card
+      role="region"
+      aria-label="Server Status"
+      tabIndex={0}
+    >
       <CardHeader>
         <CardTitle>Server Status</CardTitle>
       </CardHeader>

app/src/components/ServerSettings/UpdateStatus.tsx

@@ -20,7 +20,11 @@ export function UpdateStatus() {
   }, [platform]);
 
   return (
-    <Card>
+    <Card
+      role="region"
+      aria-label="App Updates"
+      tabIndex={0}
+    >
       <CardHeader>
         <CardTitle>App Updates</CardTitle>
       </CardHeader>

app/src/components/StoriesTab/StoryList.tsx

@@ -194,17 +194,24 @@ export function StoryList() {
           storyList.map((story) => (
             <div
               key={story.id}
+              role="button"
+              tabIndex={0}
               className={cn(
-                'h-24 p-4 border rounded-2xl transition-colors group flex items-center',
+                'h-24 p-4 border rounded-2xl transition-colors group flex items-center cursor-pointer',
                 selectedStoryId === story.id && 'bg-muted border-primary',
               )}
+              aria-label={`Story ${story.name}, ${story.item_count} ${story.item_count === 1 ? 'item' : 'items'}, ${formatDate(story.updated_at)}. Press Enter to select.`}
+              onClick={() => setSelectedStoryId(story.id)}
+              onKeyDown={(e) => {
+                if (e.target !== e.currentTarget) return;
+                if (e.key === 'Enter' || e.key === ' ') {
+                  e.preventDefault();
+                  setSelectedStoryId(story.id);
+                }
+              }}
             >
               <div className="flex items-start justify-between gap-2 w-full min-w-0">
-                <button
+                <div className="flex-1 min-w-0 text-left overflow-hidden">
-                  type="button"
-                  className="flex-1 min-w-0 text-left cursor-pointer overflow-hidden"
-                  onClick={() => setSelectedStoryId(story.id)}
-                >
                   <h3 className="font-medium truncate">{story.name}</h3>
                   {story.description && (
                     <p className="text-sm text-muted-foreground mt-1 truncate">
@@ -218,7 +225,7 @@ export function StoryList() {
                     <span>•</span>
                     <span>{formatDate(story.updated_at)}</span>
                   </div>
-                </button>
+                </div>
                 <DropdownMenu>
                   <DropdownMenuTrigger asChild>
                     <Button
@@ -226,6 +233,7 @@ export function StoryList() {
                       size="icon"
                       className="h-8 w-8 opacity-0 group-hover:opacity-100 transition-opacity"
                       onClick={(e) => e.stopPropagation()}
+                      aria-label={`Actions for ${story.name}`}
                     >
                       <MoreHorizontal className="h-4 w-4" />
                     </Button>

app/src/components/StoriesTab/StoryTrackEditor.tsx

@@ -736,6 +736,7 @@ export function StoryTrackEditor({ storyId, items }: StoryTrackEditorProps) {
               className="h-7 w-7"
               onClick={handlePlayPause}
               title="Play/Pause (Space)"
+              aria-label={isCurrentlyPlaying ? 'Pause' : 'Play'}
             >
               {isCurrentlyPlaying ? <Pause className="h-4 w-4" /> : <Play className="h-4 w-4" />}
             </Button>
@@ -745,6 +746,7 @@ export function StoryTrackEditor({ storyId, items }: StoryTrackEditorProps) {
               className="h-7 w-7"
               onClick={handleStop}
               disabled={!isCurrentlyPlaying}
+              aria-label="Stop"
             >
               <Square className="h-3 w-3" />
             </Button>
@@ -762,6 +764,7 @@ export function StoryTrackEditor({ storyId, items }: StoryTrackEditorProps) {
                 className="h-7 w-7"
                 onClick={handleSplit}
                 title="Split at playhead (S)"
+                aria-label="Split at playhead"
               >
                 <Scissors className="h-4 w-4" />
               </Button>
@@ -771,6 +774,7 @@ export function StoryTrackEditor({ storyId, items }: StoryTrackEditorProps) {
                 className="h-7 w-7"
                 onClick={handleDuplicate}
                 title="Duplicate (Cmd/Ctrl+D)"
+                aria-label="Duplicate clip"
               >
                 <Copy className="h-4 w-4" />
               </Button>
@@ -780,6 +784,7 @@ export function StoryTrackEditor({ storyId, items }: StoryTrackEditorProps) {
                 className="h-7 w-7"
                 onClick={handleDelete}
                 title="Delete (Delete/Backspace)"
+                aria-label="Delete clip"
               >
                 <Trash2 className="h-4 w-4" />
               </Button>
@@ -789,10 +794,22 @@ export function StoryTrackEditor({ storyId, items }: StoryTrackEditorProps) {
           {/* Zoom controls - right side */}
           <div className="flex items-center gap-2">
             <span className="text-xs text-muted-foreground">Zoom:</span>
-            <Button variant="ghost" size="icon" className="h-6 w-6" onClick={handleZoomOut}>
+            <Button
+              variant="ghost"
+              size="icon"
+              className="h-6 w-6"
+              onClick={handleZoomOut}
+              aria-label="Zoom out"
+            >
               <Minus className="h-3 w-3" />
             </Button>
-            <Button variant="ghost" size="icon" className="h-6 w-6" onClick={handleZoomIn}>
+            <Button
+              variant="ghost"
+              size="icon"
+              className="h-6 w-6"
+              onClick={handleZoomIn}
+              aria-label="Zoom in"
+            >
               <Plus className="h-3 w-3" />
             </Button>
           </div>

app/src/components/VoiceProfiles/AudioSampleRecording.tsx

@@ -140,7 +140,13 @@ export function AudioSampleRecording({
               </div>
               <p className="text-sm text-muted-foreground text-center">File: {file.name}</p>
               <div className="flex gap-2">
-                <Button type="button" size="icon" variant="outline" onClick={onPlayPause}>
+                <Button
+                  type="button"
+                  size="icon"
+                  variant="outline"
+                  onClick={onPlayPause}
+                  aria-label={isPlaying ? 'Pause' : 'Play'}
+                >
                   {isPlaying ? <Pause className="h-4 w-4" /> : <Play className="h-4 w-4" />}
                 </Button>
                 <Button

app/src/components/VoiceProfiles/AudioSampleSystem.tsx

@@ -77,7 +77,13 @@ export function AudioSampleSystem({
               </div>
               <p className="text-sm text-muted-foreground text-center">File: {file.name}</p>
               <div className="flex gap-2">
-                <Button type="button" size="icon" variant="outline" onClick={onPlayPause}>
+                <Button
+                  type="button"
+                  size="icon"
+                  variant="outline"
+                  onClick={onPlayPause}
+                  aria-label={isPlaying ? 'Pause' : 'Play'}
+                >
                   {isPlaying ? <Pause className="h-4 w-4" /> : <Play className="h-4 w-4" />}
                 </Button>
                 <Button

app/src/components/VoiceProfiles/AudioSampleUpload.tsx

@@ -110,6 +110,7 @@ export function AudioSampleUpload({
                     variant="outline"
                     onClick={onPlayPause}
                     disabled={isValidating}
+                    aria-label={isPlaying ? 'Pause' : 'Play'}
                   >
                     {isPlaying ? <Pause className="h-4 w-4" /> : <Play className="h-4 w-4" />}
                   </Button>

app/src/components/VoiceProfiles/ProfileCard.tsx

@@ -61,6 +61,17 @@ export function ProfileCard({ profile }: ProfileCardProps) {
     exportProfile.mutate(profile.id);
   };
 
+  const handleKeyDown = (e: React.KeyboardEvent) => {
+    if (e.key === 'Enter' || e.key === ' ') {
+      e.preventDefault();
+      handleSelect();
+    }
+  };
+
+  const selectLabel = isSelected
+    ? `${profile.name}, ${profile.language}. Selected as voice for generation.`
+    : `${profile.name}, ${profile.language}. Select as voice for generation.`;
+
   return (
     <>
       <Card
@@ -69,6 +80,11 @@ export function ProfileCard({ profile }: ProfileCardProps) {
           isSelected && 'ring-2 ring-primary shadow-md',
         )}
         onClick={handleSelect}
+        tabIndex={0}
+        role="button"
+        aria-label={selectLabel}
+        aria-pressed={isSelected}
+        onKeyDown={handleKeyDown}
       >
         <CardHeader className="p-3 pb-2">
           <CardTitle className="flex items-center gap-1.5 text-base font-medium">

app/src/components/VoiceProfiles/SampleList.tsx

@@ -102,6 +102,7 @@ function MiniSamplePlayer({ audioUrl }: MiniSamplePlayerProps) {
           className="h-7 w-7 shrink-0"
           onClick={handlePlayPause}
           disabled={isLoading}
+          aria-label={isPlaying ? 'Pause sample' : 'Play sample'}
         >
           {isPlaying ? <Pause className="h-3.5 w-3.5" /> : <Play className="h-3.5 w-3.5 ml-0.5" />}
         </Button>
@@ -113,6 +114,8 @@ function MiniSamplePlayer({ audioUrl }: MiniSamplePlayerProps) {
             max={100}
             step={0.1}
             className="flex-1"
+            aria-label="Sample playback position"
+            aria-valuetext={`${formatAudioDuration(currentTime)} of ${formatAudioDuration(duration)}`}
           />
           <div className="flex items-center gap-1 text-xs text-muted-foreground shrink-0 min-w-[70px]">
             <span className="font-mono">{formatAudioDuration(currentTime)}</span>
@@ -128,6 +131,7 @@ function MiniSamplePlayer({ audioUrl }: MiniSamplePlayerProps) {
           className="h-7 w-7 shrink-0"
           onClick={handleStop}
           title="Stop"
+          aria-label="Stop playback"
         >
           <X className="h-3.5 w-3.5" />
         </Button>

app/src/components/VoicesTab/VoicesTab.tsx

@@ -179,9 +179,30 @@ function VoiceRow({
   onDelete,
 }: VoiceRowProps) {
   const { data: samples } = useProfileSamples(profile.id);
+  const sampleCount = samples?.length || 0;
+
+  const rowLabel = `${profile.name}, ${profile.language}, ${generationCount} generations, ${sampleCount} samples. Press Enter to edit.`;
+
+  const handleKeyDown = (e: React.KeyboardEvent) => {
+    const target = e.target as HTMLElement;
+    if (target.closest('button') || target.closest('[role="combobox"]') || target.closest('[role="listbox"]')) {
+      return;
+    }
+    if (e.key === 'Enter' || e.key === ' ') {
+      e.preventDefault();
+      onEdit();
+    }
+  };
 
   return (
-    <TableRow className="cursor-pointer" onClick={onEdit}>
+    <TableRow
+      className="cursor-pointer"
+      onClick={onEdit}
+      tabIndex={0}
+      role="button"
+      aria-label={rowLabel}
+      onKeyDown={handleKeyDown}
+    >
       <TableCell>
         <div className="flex items-center gap-2">
           <div className="h-8 w-8 rounded-lg bg-muted flex items-center justify-center shrink-0">
@@ -197,7 +218,7 @@ function VoiceRow({
       </TableCell>
       <TableCell onClick={(e) => e.stopPropagation()}>{profile.language}</TableCell>
       <TableCell onClick={(e) => e.stopPropagation()}>{generationCount}</TableCell>
-      <TableCell onClick={(e) => e.stopPropagation()}>{samples?.length || 0}</TableCell>
+      <TableCell onClick={(e) => e.stopPropagation()}>{sampleCount}</TableCell>
       <TableCell onClick={(e) => e.stopPropagation()}>
         <MultiSelect
           options={channels.map((ch) => ({
@@ -213,7 +234,7 @@ function VoiceRow({
       <TableCell onClick={(e) => e.stopPropagation()}>
         <DropdownMenu>
           <DropdownMenuTrigger asChild>
-            <Button variant="ghost" size="icon">
+            <Button variant="ghost" size="icon" aria-label={`Actions for ${profile.name}`}>
               <MoreHorizontal className="h-4 w-4" />
             </Button>
           </DropdownMenuTrigger>

docs/PR-ACCESSIBILITY.md

@@ -0,0 +1,70 @@
+# Accessibility: screen reader and keyboard improvements
+
+## Summary
+
+Improvements to support screen reader and keyboard users across the main app surfaces: audio player, generation UI, voice selection, history, voices tab, model management, server tab, and stories.
+
+**Tested with NVDA and Narrator on Windows.**
+
+---
+
+## What changed
+
+### Audio player (after generating audio)
+
+- **Play/Pause, Loop, Mute, Close** – `aria-label` added so each control is announced (e.g. "Play", "Pause", "Loop", "Mute", "Close player").
+- **Playback position slider** – `aria-label="Playback position"` and `aria-valuetext` with current/total time (e.g. "0:30 of 2:15").
+- **Volume** – Wrapped in a labelled group; volume slider has an associated screen-reader-only label and `aria-valuetext` for the level (e.g. "Volume level, 75%").
+
+### Generation UI (text box and voice choice)
+
+- **Generate speech** (submit) and **Fine tune instructions** (sliders) – Icon buttons now have `aria-label` (and state for fine-tune, e.g. "Fine tune instructions, on").
+
+### Voice selection (cards on Generate screen)
+
+- Each **voice card** is focusable (`tabIndex={0}`), has `role="button"`, and an `aria-label` (e.g. "Prashant, en. Select as voice for generation.") with `aria-pressed` when selected.
+- **Enter/Space** on the card selects that voice; tab order is card → Export/Edit/Delete.
+
+### History list (generated samples)
+
+- Each **sample row** is focusable with `role="button"` and an `aria-label` (e.g. "Sample from [profile], [duration], [date]. Press Enter to play."); **Enter/Space** plays or restarts.
+- **Transcript textarea** has `aria-label` (e.g. "Transcript for sample from [profile], [duration]") so focus in the text area is announced in context.
+
+### Voices tab (table)
+
+- Each **voice row** is focusable with `role="button"` and an `aria-label` (e.g. "[Name], [language], [N] generations, [N] samples. Press Enter to edit."); **Enter/Space** opens edit (except when focus is in a control).
+- **Actions** dropdown trigger has `aria-label="Actions for [profile name]"`.
+
+### Model management
+
+- Each **model row** is a focusable region (`tabIndex={0}`, `role="group"`) with an `aria-label` (e.g. "[Model name], [status], [size]. Use Tab to reach Download or Delete.").
+- **Download** and **Delete** (and Downloading) buttons have `aria-label` (e.g. "Download [name]", "Delete [name]").
+
+### Server tab (panels)
+
+- **Server Connection**, **Server Status**, and **App Updates** cards are landmarks: `role="region"`, `aria-label`, and `tabIndex={0}` so each panel is focusable and announced (e.g. "Server Connection", "Server Status", "App Updates").
+
+### Stories list
+
+- Each **story row** is a focusable control (`role="button"`, `tabIndex={0}`) with `aria-label` (e.g. "Story [name], [N] items, [date]. Press Enter to select."); **Enter/Space** selects the story. Actions button has `aria-label="Actions for [story name]"`.
+
+### Other controls
+
+- **Story list** – Actions (⋮) button: `aria-label="Actions for [story name]"`.
+- **Story track editor** – Play/Pause, Stop, Split, Duplicate, Delete, Zoom in/out: `aria-label` on all icon buttons.
+- **Voice profile samples** (SampleList, AudioSampleUpload, AudioSampleRecording, AudioSampleSystem) – Play/Pause and Stop: `aria-label` (e.g. "Play sample", "Pause", "Stop playback").
+- **SampleList** mini sample player – Seek slider has `aria-label="Sample playback position"` and `aria-valuetext` for time.
+
+---
+
+## Testing
+
+- **Screen readers:** Tested with **NVDA** and **Narrator** on Windows.
+- **Keyboard:** Tab order and Enter/Space activation verified for focusable rows and buttons.
+
+---
+
+## Tech note
+
+- React + TypeScript; Radix UI primitives; labels added via `aria-label`, `aria-labelledby`, `aria-valuetext`, and `role`/`tabIndex` where needed.
+- No new dependencies.