Digital Voice Recorder

Digital Voice Recorder

Feature packed the ICD-SX733 delivers. Combining flexibility and capability with convenience for musicians, business people and students the ICDSX733 offers: a 3-element stereo microphone, LPCM and MP3 Record modes, Memory Card Slot, Manual/Automatic Level Control, Intelligent Noise Cut circuitry, the ICD-SX733 offers powerful recording capability in the palm of your hand. Digital Voice Recorder


Premium Recording

Introducing the ideal digital voice recorder for business and music recording, delivering Sony'slegendary ease of use with superior recording and audio playback capability.

Built-in 4 GB flash memory1

4 GB of available internal flash memory provides ample space for recording life's important moments-up to 159 hours in fact.1.

3 Element Microphone

Capture every nuance, distant or low volume, with greater clarity via a 3-element microphone array featuring adjustable sensitivity and zoom functionality.

Dual AD Convertors

Dual analog to digital converters work in tandem to deliver wider dynamic range with minimized distortion. The result is smoother/fuller sounding recordings that capture everything from the quietest whisper to the loudest noise in the room and all things in between.

Memory Card Expansion Slot

A built-in Memory Card Expansion Slot (microSD/M2) allows for additional recording time via removable flash memory. It can also be used to transfer recordings to a computer. Thanks to the cross-memory recording feature, the recorder can automatically extend a recording from the built-in flash memory to the micro SD card without interruption.

Pre-Record Mode

Pre-Record mode, when activated, buffers sound for five seconds prior to the moment when the Record key is depressed so you never miss a word or note.

Playback convenience-Key Control

With Key Control, playback speed can be adjusted from 0.25 times to 3.00 times in natural tones by means of a digital processing function. You can even adjust playback in semitones higher or lower, each in 6 steps.

Playback convenience-Voice Up

When activated, the Voice Up function amplifies low volume sounds so that distant voices and other sounds can be heard.

USB-Direct PC and Mac® compatibility2

A convenient retractable USB terminal enables direct connectivity and charging with both Windows® and Macintosh® computers.2.

Lithium-Ion battery

A built-in rechargeable battery delivers up to 19 hours of recording time so you will never miss a beat.3.

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Audio Format(s) Supported Recording -

MP3 files:
Bit Rate: 48 kbps - 320 kbps, VBR
Sampling Frequencies: 16/22.05/24/32/44.1/48 kHz
File Extension: .mp3

PCM files:
Bit Rate: 16 bit
Sampling Frequencies: 44.1 kHz
File Extension: .wav

Playback -

Microphone Built-in, 3-Element S-Mic microphone
Recording System Digital Stereo, Monaural Recording
Audio Features
Microphone Sensitivity Feature Yes (Auto & Manual SENS Settings with Limiter functionality)
Recording Features 5 Modes: Linear PCM / MP3 320kbps / MP3 192kbps / MP3 128kbps / MP3 48kbps (Mono)
Message Folder(s) 5 Pre-Programmed at factory (400 Maximum)
199 Maximum files per folder
4074 Maximum files
Convenience Features
Erase/Protect Yes
Message Folder(s) Yes (400 Folders maximum)
On-Screen Clock Yes, with Calendar
Remote Control No
Safety Lock Yes (Hold Function)
Search Features Cue/Review, Easy Search, Calendar Search, Track Mark
Voice E-Mail Function Yes
Recording Media Built-In Flash Memory 4GB³ and Memory Card Expansion Slot (microSD/M2)
Recording and Playback Times Linear PCM (44 kHz/16 bit): 5 hrs 20 min; Max 19 hrs battery
MP3 (192 kbps): 39 hrs 45 min; Max 17 hrs battery life
MP3 (48 kbps MONo): Max 159 hrs; Max 19 hrs
Type of Use Ultra Portable Voice Recorder
Display Full Function backlit (LED) LCD Display with recording operation indicator
Inputs and Outputs
Memory Stick Max recording time (48 kbps MONo): 4 GB = 178 hrs; 8 GB= 357 hrs; 16 GB = 715 hrs
Inputs and Outputs
Headphone Output(s) 1 (Minijack, Stereo)
Microphone Input 1 (Minijack, Stereo)
USB Port(s) 1 (Type-A jack), High-Speed USB Compatible
Memory Size 4 GB = 4,294,967,296 bytes
Available: 3.2 GB (3,435,973,837 bytes)
Battery Life (Approx) Up to 19 hours
Battery Type Rechargeable Lithium
Output Power 150 mW
Operating System Compatibility Windows® 8 Windows® 7 SP1 or higher, Windows Vista® SP 2 or higher, Windows XP SP3 or higher
Mac OS X (v10.3.9-v10.8), pre-installed
Supplied Software Application Software, Sound Organizer (On unit) compatible with: Windows® 8, Windows 7, Windows Vista® SP 2 or higher, Windows XP SP3 or higher
Frequency Range LPCM 44/16: 40 - 20,000 Hz
MP3 320k: 40 - 20,000 Hz
MP3 192k: 40 - 18,000 Hz
MP3 128k: 40 - 16,000 Hz
MP3 48k (Mono): 40 - 14,000 Hz
Speaker Dimensions Approx. 0.4 x 0.2 in. (10 x 6 mm) diameter
Weights and Measurements
Dimensions (Approx.) Approx. 1.6 × 4.3 × 0.6 in. (39.5 x 110.8 x 14.6 mm) not including projecting parts and controls
Weight (Approx.) Approx. 2 5/8 oz. (82 g)

What's in the Box

  • IC Recorder (1)
  • Application Software, Sound Organizer (On unit) (1)
  • USB connection support cable (1)
  • Stereo headphones (1)
  • Carrying Case (1)
  • Stand (1)
  • Quick Start Guide (1)