Audio

Audio projects

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  • Audio Spectrum Analyzer - OscilloMeter - Audio Spectrum Analyzer for Real-time, FFT, OscilloScope, Frequency counter, voltmeter, noise and distortion meter, phase shift meter. Multi-Tone Sound Frequency Sweep Generator. White, pink noise.
  • Audio spectrum analyzer - Analyzes audio from 10 Hz to 20 kHz, input from microphone or wave file, Variable sample rates (8000 Hz, 11025 Hz, 22050 Hz, 44100 Hz) Variable transform sizes (1k, 2k, 4k, 8k) Upper and lower limits adjustable Continuous, averaged, peak hold
  • Soundcard Audio Tools and Toys - Soundcard audio tools and toys, experimental ideas and utilities. Signal Generator, Frequency-counter / instrument-tuner, Real-time Spectrum Analyser
  • Setting audio on Yaesu FT-2000 - Yaesu FT-2000 Audio Settings - How to make the FT-2000 sound clear and clean by LA5MDA
  • Yaesu FT-1000D HiFi SSB Audio and Mods - Using Hi-Fi Audio with FT-1000. Includes many FT-1000D modifications too by K6JRF
  • Bluetooth Audio and Amateur Radio - Bluetooth headsets are very common with cell phone users. As such, many amateurs may already own a Bluetooth (BT) headset. So why not use it with amateur radio?
  • Audio Preamp - Easy circuit that provide good gain to weak audio signals
  • Build An Audio Speech Processor - When one operates at low power on SSB, speech processing becomes almost essential to get through the QRM. The circuit is a low cost speech processor that will perform well with a minimum of construction effort.
  • HI-FI Audio with Kenwood TS-850SAT - Setup guide for DSP-100 and TS-850
  • A simple VOX circuit - Here is a 3 transistors 6 diodes circuit that is a Voice Operated Tx PTT control as well as an ANTI VOX circuit to stop mis-operation from Rx noise by G8MNY
  • FT-897D Audio processing and ALC operation - Audio processing and ALC in the FT-897D
  • 12W amplifier - ON6MU 12 Watt amplifier schematic
    [ Hits: 339 | Votes: 2 | Rating: 8.50 ]
  • A fool-proof VOX - A circuit which had been used in many other application before. The configuration described here is optimized for IPHONE/radio operation.
    [ Hits: 1234 | Votes: 0 | Rating: 0.00 ]
  • A Potpourri of Audio Amplifiers - A collection of audio amplifier projects by N1HFX
    [ Hits: 367 | Votes: 0 | Rating: 0.00 ]
  • A simple VOX circuit - Here is a 3 transistors 6 diodes circuit that is a Voice Operated Tx PTT control as well as an ANTI VOX circuit to stop mis-operation from Rx noise by G8MNY
    [ Hits: 1819 | Votes: 1 | Rating: 1.00 ]
  • Audio Compressor for SSB - Build an audio Processor and clipper optimised for SSB transmitter
    [ Hits: 834 | Votes: 0 | Rating: 0.00 ]
  • Audio CW Filter - A very effective AF Adaptor, with built-in noise blanker and 30 Hz CW filter modules by PA0LQ
    [ Hits: 1035 | Votes: 3 | Rating: 5.67 ]
  • Audio filters and speakers - Review of common audio speakers for mobile setups
    [ Hits: 272 | Votes: 0 | Rating: 0.00 ]
  • Audio Preamp - Easy circuit that provide good gain to weak audio signals
    [ Hits: 3372 | Votes: 2 | Rating: 3.50 ]
  • Audio processor for SSB transceiver - This circuit consists of microphone amplifier and a high pass filter. Suitable to improve signal readability.
    [ Hits: 1154 | Votes: 1 | Rating: 1.00 ]
  • Audio spectrum analyzer  pop - Analyzes audio from 10 Hz to 20 kHz, input from microphone or wave file, Variable sample rates (8000 Hz, 11025 Hz, 22050 Hz, 44100 Hz) Variable transform sizes (1k, 2k, 4k, 8k) Upper and lower limits adjustable Continuous, averaged, peak hold
    [ Hits: 26845 | Votes: 50 | Rating: 3.86 ]
  • Audio Spectrum Analyzer - OscilloMeter  pop - Audio Spectrum Analyzer for Real-time, FFT, OscilloScope, Frequency counter, voltmeter, noise and distortion meter, phase shift meter. Multi-Tone Sound Frequency Sweep Generator. White, pink noise.
    [ Hits: 81444 | Votes: 303 | Rating: 6.20 ]
  • Bass EQ Pre Amp - A Bass Eq Pre amplifier for high impedance PU by ON6MU
    [ Hits: 230 | Votes: 0 | Rating: 0.00 ]
  • Bluetooth Audio and Amateur Radio - Bluetooth headsets are very common with cell phone users. As such, many amateurs may already own a Bluetooth (BT) headset. So why not use it with amateur radio?
    [ Hits: 3715 | Votes: 9 | Rating: 7.22 ]
  • Bose Headphone Mod - Adding a boom mike to Bose Quiet Comfort (QC-1) noise-cancelling headphones
    [ Hits: 213 | Votes: 0 | Rating: 0.00 ]
  • Build An Audio Speech Processor - When one operates at low power on SSB, speech processing becomes almost essential to get through the QRM. The circuit is a low cost speech processor that will perform well with a minimum of construction effort.
    [ Hits: 3277 | Votes: 13 | Rating: 7.30 ]
  • Control unit for receive audio - A master control unit for receive audio
    [ Hits: 340 | Votes: 0 | Rating: 0.00 ]
  • Design Guidelines for JFET Audio Preamplifier Circuits - Design Guidelines for JFET Audio Preamplifier Circuits By Mike Martell N1HFX
    [ Hits: 366 | Votes: 3 | Rating: 1.00 ]
  • Designing Op Amp Audio PreAmplifiers - Design guidelines for Op Amp audio preamplifier circuits by Mike Martell N1HFX
    [ Hits: 1338 | Votes: 4 | Rating: 3.25 ]
  • Elecraft DSP audio settings - DSP Settings and Mic Connections for Elecraft K3
    [ Hits: 109 | Votes: 1 | Rating: 1.00 ]
  • Flex Radio Power SDR Transmit Audio Settings - AB4BJ optimizing audio settings on the flex 5000A and heil microphones
    [ Hits: 57 | Votes: 0 | Rating: 0.00 ]
  • From STEREO to MONO - Mixing channel, from stereo to mono in italiand and eglish by IZ0KBA
    [ Hits: 99 | Votes: 0 | Rating: 0.00 ]
  • FT-726 AUDIO Modifications - Throughput improvement for the FT726R - Tapr PSK modem
    [ Hits: 543 | Votes: 0 | Rating: 0.00 ]
  • FT-817 Speech Processor - A speech processor project and schematic for the FT-817 based on information taken from eHam and Ok1CDJ
    [ Hits: 307 | Votes: 0 | Rating: 0.00 ]
  • FT-897D Audio processing and ALC operation - Audio processing and ALC in the FT-897D
    [ Hits: 1576 | Votes: 3 | Rating: 3.67 ]
  • Ham EQ - Home made amateur radio equalizer project, designed to enhance a ham operators SSB audio by ND2M
    [ Hits: 181 | Votes: 0 | Rating: 0.00 ]
  • Ham Radio Blue Tooth Interface - A Simple Ham Radio Blue Tooth Interface by K7SFN
    [ Hits: 769 | Votes: 1 | Rating: 7.00 ]
  • Headphone amplifier - A headphones splitter box with amplification by Ian White, M0BXR
    [ Hits: 309 | Votes: 0 | Rating: 0.00 ]
  • Heil Microphones DSP Settings - How adjust DSP settings for your trasmitter when using Heil Sound microphones
    [ Hits: 245 | Votes: 1 | Rating: 1.00 ]
  • HI-FI Audio with Kenwood TS-850SAT - Setup guide for DSP-100 and TS-850
    [ Hits: 2348 | Votes: 4 | Rating: 4.50 ]
  • Hi-FI Audio with Yaesu FT-2000 - Setup for the Yaesu FT-2000 by John K3UR
    [ Hits: 1413 | Votes: 0 | Rating: 0.00 ]
  • Icom DSP Settings and Pin Connections - ICOM audio DSP settings and pin connections for heil sound headphones
    [ Hits: 310 | Votes: 0 | Rating: 0.00 ]
  • Improving transmission Intellegibility - Improving the intelligibility of an SSB transmissions What is important when processing speech. Which bands have more impact on speach ?
    [ Hits: 144 | Votes: 0 | Rating: 0.00 ]
  • Integrated Circuit Audio Amplifiers - Circuit designs for IC audio amplifiers by N1HFX
    [ Hits: 189 | Votes: 0 | Rating: 0.00 ]
  • Kenwood DSP Settings and pin connections - Kenwood radios audio DSP settings for Heil Sound headphones
    [ Hits: 325 | Votes: 2 | Rating: 2.50 ]
  • KG9OM Audio Processing setup - Audio processing chain at KG9OM
    [ Hits: 446 | Votes: 3 | Rating: 10.00 ]
  • Low Pass Audio Filter - 440 Hertz peaked low pass audio filter experiments
    [ Hits: 615 | Votes: 1 | Rating: 7.00 ]
  • Low Power LF Amplifier - ON6MU Low Power amplifier
    [ Hits: 433 | Votes: 0 | Rating: 0.00 ]
  • Mic Pre Ampllifier - A microphone preamplifier schematic for hand-helds by ON6MU
    [ Hits: 1317 | Votes: 2 | Rating: 4.00 ]
  • Microphone sensivity calculators - Mic online calculator , Microphone Dynamic Range Calculator, Microphone Sensitivity Calculator
    [ Hits: 179 | Votes: 3 | Rating: 4.67 ]
  • N2RIT audio chain - Audio setup at N2RIT built around the Yaesu FT-950 abd the Heil Sound PR-781 an ultraflex PRO EX3200
    [ Hits: 144 | Votes: 0 | Rating: 0.00 ]
  • No More Splatter - Improving your own signal quality by GM3SEK
    [ Hits: 322 | Votes: 0 | Rating: 0.00 ]
  • Noise Cancelling Headphones - Review of common noise cancelling headphones for under $50.00 by WA4PGM
    [ Hits: 279 | Votes: 1 | Rating: 10.00 ]
  • RF Speech Processor - RF Speech Processor project with complete schematic by Jagodic YU1OXB
    [ Hits: 169 | Votes: 0 | Rating: 0.00 ]
  • Setting audio on Yaesu FT-2000 - Yaesu FT-2000 Audio Settings - How to make the FT-2000 sound clear and clean by LA5MDA
    [ Hits: 4208 | Votes: 10 | Rating: 8.00 ]
  • Setup for spectrum analysis - How to properly analyze your audio transmission, setting up the receiver and use the most popular audio spectrum analysis programs available on the net by W3OZ
    [ Hits: 66 | Votes: 0 | Rating: 0.00 ]
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