Audible Alarm Basics - Schuster Electronics
... voltage across the transducer will produce a greater physical deflection that will be heard as a louder sound. A word must also be said about the method used by manufacturers to rate the dB level of their audible alarms. To avoid sound reflections and outside noise, and anechoic sound chamber should ...
... voltage across the transducer will produce a greater physical deflection that will be heard as a louder sound. A word must also be said about the method used by manufacturers to rate the dB level of their audible alarms. To avoid sound reflections and outside noise, and anechoic sound chamber should ...
Appendix C: Acoustic Primer
... range of a given receptor. Most sounds heard in the environment do not consist of a single frequency, but rather a broad band of frequencies differing in sound level. The intensities of each frequency add to generate perceptible sound. The speed of sound is not affected by the intensity, amplitude, ...
... range of a given receptor. Most sounds heard in the environment do not consist of a single frequency, but rather a broad band of frequencies differing in sound level. The intensities of each frequency add to generate perceptible sound. The speed of sound is not affected by the intensity, amplitude, ...
document
... 1. In order to initiate a sound to be played the Picaxe will be connected to a 12 ch RF relay board. The 12 ch RF relay board has a remote control with 12 button on it and each button triggers one relay. Each relay when triggered will be used to send a signal to the Picaxe to execute some function w ...
... 1. In order to initiate a sound to be played the Picaxe will be connected to a 12 ch RF relay board. The 12 ch RF relay board has a remote control with 12 button on it and each button triggers one relay. Each relay when triggered will be used to send a signal to the Picaxe to execute some function w ...
THE B.A.S. SPEAKER - Boston Audio Society
... fed in, the multiplex decoder produces a 7-kHz IM distortion product that is subjectively louder than the 12-kHz fundamental. So far as I know, the first multiplex decoder that was reasonably free of this garbage was that in the classic Acoustic Research tuner and receiver. Only recently, with the a ...
... fed in, the multiplex decoder produces a 7-kHz IM distortion product that is subjectively louder than the 12-kHz fundamental. So far as I know, the first multiplex decoder that was reasonably free of this garbage was that in the classic Acoustic Research tuner and receiver. Only recently, with the a ...
Slides - Linux Audio Conference
... • Most equipment reviews that can be found on the web don’t verify or even mention any technical specs. They are at best useless, if not completely bogus (the author got a free sample). • If specs are not completely unambiguous, the only sane reaction is to mistrust them, and spend your money on som ...
... • Most equipment reviews that can be found on the web don’t verify or even mention any technical specs. They are at best useless, if not completely bogus (the author got a free sample). • If specs are not completely unambiguous, the only sane reaction is to mistrust them, and spend your money on som ...
Evolution of an icon
... electric cello on an AEA R44CNE. Is the A440 the best 44 incarnation ever? Time will tell. The A440 is a very useful development of the 44. Engineers who have considerable experience with both RCA and AEA 44s like it very much. On Hollywood scoring stages and at world class studio facilities, such a ...
... electric cello on an AEA R44CNE. Is the A440 the best 44 incarnation ever? Time will tell. The A440 is a very useful development of the 44. Engineers who have considerable experience with both RCA and AEA 44s like it very much. On Hollywood scoring stages and at world class studio facilities, such a ...
Selection and Operation of Audio Signal Processors (English)
... • Output devices (loudspeakers) Audio signal processors are typically employed within or just after the mixer stage, but before amplification. (See Figure 1-1.) A processor can be used at the input stage, but since most processors are designed to operate with line level sources this is rare. Signal ...
... • Output devices (loudspeakers) Audio signal processors are typically employed within or just after the mixer stage, but before amplification. (See Figure 1-1.) A processor can be used at the input stage, but since most processors are designed to operate with line level sources this is rare. Signal ...
Audio Video Production Engineering
... Low Pass Filtering A circuit that does the final smoothing of the analog signal and removes any high frequency noise ...
... Low Pass Filtering A circuit that does the final smoothing of the analog signal and removes any high frequency noise ...
BM-400 Professional broadcasting and recording microphone User manual
... The Devine BM-400 studio microphone is suitable for most recording applications in your studio. Thanks to the cardioid pattern, the microphone is very suitable for recording of music instruments and vocals. The Devine BM-400 has an unidirectional (cardioid) polar pattern. This is the most used polar ...
... The Devine BM-400 studio microphone is suitable for most recording applications in your studio. Thanks to the cardioid pattern, the microphone is very suitable for recording of music instruments and vocals. The Devine BM-400 has an unidirectional (cardioid) polar pattern. This is the most used polar ...
Omnia ONE - Broadcast Bionics
... Converter which is specified as >110 dB. The dynamic range of the internal digital signal processing chain is >144 dB. ...
... Converter which is specified as >110 dB. The dynamic range of the internal digital signal processing chain is >144 dB. ...
Audio Note Japan Kondo Overture
... closing their eyes and waving their hand with the music as if they were conducting the orchestra. I don't know exactly what that is about but I guess that's their way of internalizing music. The reason I'm telling this is that hand waiving was the first thing that popped into my mind while listening ...
... closing their eyes and waving their hand with the music as if they were conducting the orchestra. I don't know exactly what that is about but I guess that's their way of internalizing music. The reason I'm telling this is that hand waiving was the first thing that popped into my mind while listening ...
DR130 Portable Hybrid Recorder
... relay device has long operational life, does not generate any sound, and consumes little power. These solid state relays have a high withstand voltage (1,500 VDC) enabling them to be used safely in the field. In addition, they produce very little leakage current (1 nA), permitting accurate measureme ...
... relay device has long operational life, does not generate any sound, and consumes little power. These solid state relays have a high withstand voltage (1,500 VDC) enabling them to be used safely in the field. In addition, they produce very little leakage current (1 nA), permitting accurate measureme ...
User`s manual - EXCELIA HIFI
... purposes. A Very high-quality black box film type volume pot from ALPS has been specified for its superior sound quality and excellent channel balance. The power supply is also a vital part of any power amplifier. A toroidal transformer, selected for low external magnetic field, is used in conjuncti ...
... purposes. A Very high-quality black box film type volume pot from ALPS has been specified for its superior sound quality and excellent channel balance. The power supply is also a vital part of any power amplifier. A toroidal transformer, selected for low external magnetic field, is used in conjuncti ...
Responses to frequently asked questions about elephants and
... developed by engineers in the Cornell University Bioacoustics Research Program. It consists of a small microphone mounted on a signal conditioning board that connects to a more generalized filter amplification board. The output from the filter amplification board then feeds into a circuit that conve ...
... developed by engineers in the Cornell University Bioacoustics Research Program. It consists of a small microphone mounted on a signal conditioning board that connects to a more generalized filter amplification board. The output from the filter amplification board then feeds into a circuit that conve ...
SOUND, DESIGNER (STUDENT) - JOB DESCRIPTION Prerequisite
... The Sound Designer will process all purchases and rentals through the Faculty Sound Designer or T.D. in a timely fashion to meet the production deadlines. The Sound Designer must be present and help to supervise the set-up of all sound equipment. The Sound Designer must instruct the Mixer and/or Sou ...
... The Sound Designer will process all purchases and rentals through the Faculty Sound Designer or T.D. in a timely fashion to meet the production deadlines. The Sound Designer must be present and help to supervise the set-up of all sound equipment. The Sound Designer must instruct the Mixer and/or Sou ...
A ROYAL TREAT FOR YOUR EARS AudioValveRKV Mark II , The
... like the wine, which had not been decanted and therefore tasted a little acerb, was short of sweet aftertaste. However, after half an hour of warming up, its performance was totally different. It activated its full potentials so that the weak point of being loose and short of power at bass frequenci ...
... like the wine, which had not been decanted and therefore tasted a little acerb, was short of sweet aftertaste. However, after half an hour of warming up, its performance was totally different. It activated its full potentials so that the weak point of being loose and short of power at bass frequenci ...
THERE`S NO PLACE LIKE OHM
... the other motivation for making this recording was to bring together instruments from the Middle East and North America, to create a harmonious dialogue through music. Fellow musician Orville Johnson tuned his banjo, an ancestor of the Sitar, to Ohm and we were on our way. Rhythm instruments were in ...
... the other motivation for making this recording was to bring together instruments from the Middle East and North America, to create a harmonious dialogue through music. Fellow musician Orville Johnson tuned his banjo, an ancestor of the Sitar, to Ohm and we were on our way. Rhythm instruments were in ...
here - Phaedrus Audio
... active device in the impedance converter because only about twenty-seven thousand of these tubes were ever made before production was halted 19541. The maths speaks for itself. We know that Neumann produced about 6000 U47s and about 800 U48 microphones. That’s about 7000 examples and, given the two ...
... active device in the impedance converter because only about twenty-seven thousand of these tubes were ever made before production was halted 19541. The maths speaks for itself. We know that Neumann produced about 6000 U47s and about 800 U48 microphones. That’s about 7000 examples and, given the two ...
acoustics for violin and guitar makers
... critical bands of hearing, cf., Fig. 9.8. It is easily seen that the spectra are different in the different directions, especially at high frequencies. The spectrum corresponding to radiation in the neck direction gives the highest levels, In the directions perpendicularly to the neck, i.e., the top ...
... critical bands of hearing, cf., Fig. 9.8. It is easily seen that the spectra are different in the different directions, especially at high frequencies. The spectrum corresponding to radiation in the neck direction gives the highest levels, In the directions perpendicularly to the neck, i.e., the top ...
Introduction to Ultrasound
... The transducer is placed directly on top of the skin, which has a gel applied to the surface. The sound waves that are sent by the transducer into the body and hit a boundary of organs Some of the sound waves get reflected back to the probe, while some travel on further until they reach another boun ...
... The transducer is placed directly on top of the skin, which has a gel applied to the surface. The sound waves that are sent by the transducer into the body and hit a boundary of organs Some of the sound waves get reflected back to the probe, while some travel on further until they reach another boun ...
microphones
... (or micron) is one millionth of a meter or one thousandth of a millimeter. Close to this plate (metallic or metalised plastic) stands another metallic plate with holes. These 2 plates act as electrodes and are kept at opposite polarities by supplying D C to behave as a condenser, they should be insu ...
... (or micron) is one millionth of a meter or one thousandth of a millimeter. Close to this plate (metallic or metalised plastic) stands another metallic plate with holes. These 2 plates act as electrodes and are kept at opposite polarities by supplying D C to behave as a condenser, they should be insu ...
Stage Lighting & Sound History of Lighting & Sound Recording
... History of Lighting Design o Robert Edmond JONES (1887-1954) 1. Studied in Europe 1912-15 with Gordon Craig 2. Sought to make theatre design evocative and not descriptive 3. Wrote The Dramatic Imagination (1941), definitive text for metaphorical and non-illusionistic theatre design “Lighting a ...
... History of Lighting Design o Robert Edmond JONES (1887-1954) 1. Studied in Europe 1912-15 with Gordon Craig 2. Sought to make theatre design evocative and not descriptive 3. Wrote The Dramatic Imagination (1941), definitive text for metaphorical and non-illusionistic theatre design “Lighting a ...
Audacity Participant Handout
... Noise Removal – This effect lets you clean up noise from a recording. Select a small piece of audio that is silent except for the noise, select Noise Removal, and click on the Get Noise Profile button. Then select all of the audio you want filtered, select Noise ...
... Noise Removal – This effect lets you clean up noise from a recording. Select a small piece of audio that is silent except for the noise, select Noise Removal, and click on the Get Noise Profile button. Then select all of the audio you want filtered, select Noise ...
Sound recording and reproduction
Sound recording and reproduction is an electrical or mechanical inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording. Acoustic analog recording is achieved by a small microphone diaphragm that can detect changes in atmospheric pressure (acoustic sound waves) and record them as a graphic representation of the sound waves on a medium such as a phonograph (in which a stylus senses grooves on a record). In magnetic tape recording, the sound waves vibrate the microphone diaphragm and are converted into a varying electric current, which is then converted to a varying magnetic field by an electromagnet, which makes a representation of the sound as magnetized areas on a plastic tape with a magnetic coating on it. Analog sound reproduction is the reverse process, with a bigger loudspeaker diaphragm causing changes to atmospheric pressure to form acoustic sound waves. Electronically generated sound waves may also be recorded directly from devices such as an electric guitar pickup or a synthesizer, without the use of acoustics in the recording process other than the need for musicians to hear how well they are playing during recording sessions.Digital recording and reproduction converts the analog sound signal picked up by the microphone to a digital form by the process of digitization. This lets the audio data be stored and transmitted by a wider variety of media. Digital recording stores audio as a series of binary numbers representing samples of the amplitude of the audio signal at equal time intervals, at a sample rate high enough to convey all sounds capable of being heard. Digital recordings are considered higher quality than analog recordings not necessarily because they have higher fidelity (wider frequency response or dynamic range), but because the digital format can prevent much loss of quality found in analog recording due to noise and electromagnetic interference in playback, and mechanical deterioration or damage to the storage medium. A digital audio signal must be reconverted to analog form during playback before it is applied to a loudspeaker or earphones.