Tascam's DR-07 is a portable recorder featuring a multitude of settings for audio quality. Recordings are stored on the unit's internal 2GB storage card, but additional recording space is available by installing an additional SD card up to 32GB. User preference, available recording storage and playback quality desired will dictate which recording settings to use. The Tascam also features a mono speaker for recording playback, USB port for computer connection and multi-track recording capability.
The Tascam DR-07 is equipped with dual adjustable microphones for stereo recording. Positioning the mics facing outward at opposing 45-degree angles -- the A/B positions -- provides maximum stereo separation for recorded music, crowded rooms or outdoor sound. Adjusting mics at 45-degree inward-facing angles -- the X/Y positions -- results in tighter stereo separation for recording of voice interviews, musical instruments or situations where wide stereo separation is not desirable. Experimenting with both positions will yield the best sound quality for your project and audio preference.
MP3 or WAV
The DR-07 will record in WAV or MP3 formats at different bit rates chosen by the user. WAV files are large, but will yield the best recording quality -- particularly when recorded at 24bit rather than 16bit. MP3 files are compressed and offer lower quality. They are much smaller than WAV files, but yield more recording time by taking up less space on the SD card. The best MP3 recording quality is achieved by setting the bit rate at 320kbs. Lower MP3 bit rates chosen by the user-- 256, 192, 128, 96, 64 and 32kbs -- will yield lower quality as bit rates decrease.
Proper setting of input levels will eliminate distortion and provide the best audio quality. The Tascam DR-70 offers settings for automatic input level, peak reduction and limiting. You'll get the best recording quality by choosing all three features. Auto level will determine the optimum input level, peak reduction reduces loud sounds to levels set by the auto level selection, and limiting reduces extremely loud sounds to prevent distortion.
Stereo Vs. Mono
Stereo recording mode will provide the best audio quality when you want stereo operation. Mono operation will combine both left and right microphone inputs to produce mono recordings when mono operation is required. Although stereo recording is preferred by most users and results in the best audio for music and sound effects, mono recording is best for spoken dictation, recordings for mono AM radio station broadcast, or music recording when you want vintage pre-1970s monophonic sound. Mono-playback devices -- single speaker radios or vintage vinyl record players -- require mono recordings for the best audio quality.