A Digital Recorder is a type of digital recorder that uses the principle of converting an analog audio signal into a digital signal, which can then be saved on a computer hard drive. In this digital recording, a video or audio signal is digitized, which converts to a series of discrete numbers, representing the changes in atmosphere at various times within a live air environment for audio, or chrominance and luminance for video. The number of these discrete numbers represents the number of seconds during which the recording was made, and the length of that recording is also the number of seconds in which the image is shown on the monitor. There are two types of Digital Recorders: Digital Stereo Recorders record video from only one speaker, and include a microphone for picking up the sound from that speaker, whereas Multi-room Digital Recorders record from every speaker in every room, and include a microphone for each individual pair of speakers in order to obtain a stereo sound effect.
Digital Audio Work (DAW) Digital audio work refers to the conversion of voice samples into digital audio samples, which can then be played back using a digital voice recorder. Digital audio work comes in different forms, including voice recognition software for automatic recognition of voice voices, as well as speech recognition tools for text-to-speech conversion and transcription. Other options include voice activation and automatic captions.
Mic Preamp Digital microphones refer to any digital recorder that has a front-mounted integrated amplifier that can be used to power the other auxiliary components of the Digital Recorder. Most Mic preamps have the ability to monitor the volume and balance of the audio input, and some have the ability to operate as wireless routers. Some Mic preamp models also include a stereo input and monitor. Most high-end digital recorders have at least two channels for recording and monitoring, although most users will only need a single channel.
Digital Stereo In Ear Digital stereo recorders are designed especially for use with headphones, so you can record while you are wearing headphones. The two main advantages of using a digital recorder with headphones is the increased sound quality and reduced hassle. There is no direct connection between the recorders and speakers. Instead, an earphone connected to the headphones picks up the sound from the recording source. Another advantage of using a digital recorder with headphones is the ability to playback the audio file without hearing it.
Zoom h3NZoom: A Zoom h3NZoom is a plug & play digital audio recorder, which uses the latest Zooming technologies, such as dual zone recording. Basically, two digital cameras are connected to the recorder using Zooming connectors. The first camera is fitted in a projector or frame, and the other camera is connected directly to the tascam drive. The recorder uses a Zooming interface with a 16-step motion control. The audio recording can be compressed to DVD quality.
Audio Sample Rate: Most digital recorders have a fixed sample rate, which means that you can't increase the sample rate unless you lose sound quality. This is one of the most important features of a digital recorder. If you don't want to end up with a lot of extra noise, then you should keep this in mind when selecting a recorder with a fixed sample rate.
Voice Recognition Technology: Some digital audio recorder models come with voice recognition technology. It may not be a built in feature. You should make sure that your recorder has this capability. This feature allows the user to automatically recognize voices, if they are part of the audio file and insert them automatically into the recording. For instance, if you recorded an instructional audio file for a class, the recorder could automatically record one person's voice and insert it into the file, to enable the instructor to teach the next group of students.
Microphone Attachments: Many voice recorders are equipped with microphones, designed to be used with the USB interface. However, some require an external microphone, and some even require additional software to upload the sounds onto a computer. If you intend to record multiple recordings, then you will need an external microphone. There are a number of usb microphone attachments available, such as the eZeeze USB microphone.