Delay (audio effect) - Quiz
Delay audio effect
  • 1. In which type of delay does the delayed signal alternate between the two channels of a stereo program?
A) Multi-tap
B) Straight delay
C) Doubling echo
D) Ping-pong delay
  • 2. What is taken from a delay buffer in a multi-tap delay?
A) A single continuous loop
B) The raw visual media
C) Multiple taps (outputs)
D) A modulated feedback signal
  • 3. What can multi-tap delays be used to create?
A) Audio to video synchronization
B) Only slapback echo
C) Rhythmic patterns or dense, reverb-like effects
D) Tape recorder head spacing
  • 4. How is doubling echo produced?
A) By alternating between two stereo channels
B) By adding a short delay to a recorded sound
C) By using a delay time of 60 to 250 milliseconds
D) By sending only the delayed signal to distant speakers
  • 5. What are the most common delay times for doubling echo?
A) 60 to 250 milliseconds
B) 1 millisecond per foot
C) 3 milliseconds per meter
D) Thirty to fifty milliseconds
  • 6. Longer delay times of a doubling echo become what kind of effect?
A) Slapback echo
B) Ping-pong delay
C) Reverb
D) Flanging
  • 7. Mixing the original and delayed sounds in a doubling echo creates an effect similar to what?
A) Audio to video synchronization
B) Doubletracking or unison performance
C) Propagation of sound through the air
D) A dense reverb-like effect
  • 8. What delay time is used by slapback echo?
A) 1 millisecond per meter
B) 60 to 250 milliseconds
C) 500 to 1000 milliseconds
D) 30 to 50 milliseconds
  • 9. How much feedback does slapback echo typically use?
A) Equal feedback to feed-forward ratio
B) Continuous modulation
C) Maximum feedback
D) Little or no feedback
  • 10. What effect is created by a slapback delay?
A) A stereo bouncing effect
B) A thickening effect
C) A spatial blur effect
D) A phase cancellation effect
  • 11. Slapback echo is characteristic of vocals on what kind of records?
A) 1970s disco records
B) 1960s psychedelic records
C) Modern electronic music records
D) 1950s rock-and-roll records
  • 12. Who produced the first Sun Records tracks featuring slapback echo for Elvis Presley?
A) Les Paul
B) Elvis Presley
C) Sam Phillips
D) Tom Dowd
  • 13. In July 1954, Sam Phillips produced the first of how many 78s and 45s for Elvis Presley on Sun Records?
A) Five
B) Ten
C) Twenty
D) Two
  • 14. How was the slapback echo effect originally produced on tape recorders?
A) By mixing the two channels of a stereo program
B) By re-feeding the output signal from the playback head to its record head
C) By taking multiple taps from a delay buffer
D) By using 1 millisecond of delay per foot of air
  • 15. What were the main controlling factors of the original slapback tape effect?
A) The room dimensions, speaker distance, and frequency range
B) The physical space between heads, the speed of the tape, and the chosen volume
C) The buffer size, feedback level, and modulation depth
D) The video frame rate, time base correction, and scaling
  • 16. Beside vocals, what instruments are sometimes used with slapback echo?
A) Drums and percussion
B) Solo orchestral strings
C) Brass and woodwinds
D) Pipe organs
  • 17. Which of the following are explicitly listed as delay-based sound effects alongside reverb?
A) Straight delay and slapback echo
B) Doubletracking and unison performance
C) Flanging and chorus effect
D) Multi-tap and ping-pong delay
  • 18. What is true about the delay time in flanging and chorus?
A) It alternates between stereo channels
B) It is between 60 and 250 milliseconds with no feedback
C) It is very short and usually modulated
D) It uses 1 millisecond per foot of air
  • 19. What causes individual echoes to blur together in reverberation?
A) Video scaling and framebuffers
B) Multiple delays and feedback
C) Direct speaker reinforcement without mixing
D) A single short delay of thirty milliseconds
  • 20. What is the purpose of reverberation?
A) Recreating the sound of an acoustic space
B) Creating a thickening effect on 1950s vocals
C) Aligning sound with visual media
D) Compensating for the propagation of sound through air
  • 21. What is straight delay used for in sound reinforcement systems?
A) To compensate for the propagation of sound through the air
B) To create a rhythmic ping-pong stereo effect
C) To blur individual echoes into a reverb-like space
D) To doubletrack vocals like 1950s rock-and-roll
  • 22. How is straight delay handled differently from audio delay effects devices?
A) It uses much shorter delay times under ten milliseconds
B) It is modulated continuously
C) It incorporates high levels of feedback
D) It is not mixed back in with the original signal
  • 23. Where is the delayed signal alone sent in straight delay sound reinforcement?
A) To the left channel of a stereo program only
B) Directly back into the recording head of a tape machine
C) To video scaling framebuffers
D) To loudspeakers distant from the stage
  • 24. Approximately how much straight delay is used per foot of air?
A) 1 millisecond
B) 60 to 250 milliseconds
C) 3 milliseconds
D) 30 to 50 milliseconds
  • 25. Approximately how much straight delay is used per meter of air?
A) 3 milliseconds
B) 1 millisecond
C) 10 milliseconds
D) 50 milliseconds
  • 26. What physical phenomenon allows engineers to use distant speaker systems with straight delay and maintain the illusion that sound originates from the stage?
A) Resonance
B) The Haas effect
C) Phase cancellation
D) Doppler effect
  • 27. What is a main purpose of using straight delay with additional speaker systems in a venue?
A) To achieve a thickening slapback effect for vocals
B) To create a dense reverb-like acoustic space
C) To deliver sufficient sound volume to the back of the venue without excessive volume near the front
D) To synchronize audio with delayed television broadcasting
  • 28. What is a secondary use of straight delay in audio engineering?
A) Simulating unison performance on recordings
B) Audio to video synchronization
C) Creating doubletracking effects for instruments
D) Generating rhythmic ping-pong patterns
  • 29. Why might visual media become delayed on TV or web broadcasting?
A) Physical spacing between tape recorder heads
B) Time base correction, video scaling, and framebuffers
C) Excessive sound volumes near the front of a venue
D) The propagation of sound through the air
  • 30. When visual media is delayed on TV or web broadcasting, what is adjusted to match it?
A) The feedback level of the slapback echo is reduced
B) The tape recorder speed is increased
C) The multi-tap buffer outputs are summed
D) The associated audio may be delayed
  • 31. When were digital effects pedals introduced?
A) 1954
B) 1973
C) 2000
D) 1984
  • 32. Which musical genre's early composers commonly used tape loop delay techniques?
A) Musique concrète
B) Smooth jazz
C) Classical baroque
D) Heavy metal
  • 33. Which artist used the slapback echo effect on the track 'Blue Moon of Kentucky'?
A) Karlheinz Stockhausen
B) Elvis Presley
C) Chet Atkins
D) Bob Marley
  • 34. Who made the EchoSonic amplifier?
A) Sam Phillips
B) Pierre Schaeffer
C) Ikutaro Kakehashi
D) Ray Butts
  • 35. Which guitarist famously used the EchoSonic amplifier in rock and roll?
A) Les Paul
B) Scotty Moore
C) Buddy Holly
D) Brian Setzer
  • 36. Who introduced the Roland RE-201 in 1973?
A) Karlheinz Stockhausen
B) Ray Butts
C) Ikutaro Kakehashi
D) Sam Phillips
  • 37. In which decade did Jamaican dub reggae producers use delay effects extensively?
A) The 1950s
B) The 1970s
C) The 2000s
D) The 1980s
  • 38. Which genre of electronic music was introduced to delay by dub techno producers like Basic Channel?
A) Electronic music
B) Musique concrète
C) Country music
D) Baroque classical
  • 39. In what year was Ray Butts' EchoSonic introduced?
A) 1958
B) 1952
C) 1974
D) 1959
  • 40. Which tape delay model was introduced in 1958?
A) The Roland Space Echo
B) The EchoSonic
C) The Watkins Copicat
D) The Echoplex
  • 41. Which tape delay model was introduced in 1959?
A) The Echoplex
B) The Roland Space Echo
C) The EchoSonic
D) The Watkins Copicat
  • 42. What impression is created by the way tape compresses and distorts in tape delay effects?
A) That the audio is being sped up infinitely
B) That the recording was made in a natural cave
C) That multiple instruments are playing simultaneously
D) That the echoes are receding rather than just getting quieter
  • 43. What type of recording method does the oil-can delay use?
A) Electrostatic
B) Digital
C) Electromagnetic
D) Magnetic tape
  • 44. What material is the rotating disc in an oil-can delay made of?
A) Carbon particles
B) Conductive neoprene
C) Anodized aluminium
D) Stainless steel
  • 45. What are the particles suspended on the disc made of?
A) Aluminum
B) Carbon
C) Copper
D) Neoprene
  • 46. What transfers the charge to the high impedance disc in an oil-can delay?
A) A voltage amplifier
B) An analog-to-digital converter
C) A second wiper
D) A conductive neoprene wiper
  • 47. What reads the signal representation from the disc in an oil-can delay?
A) A conductive neoprene wiper
B) An AC signal source
C) A bucket-brigade device
D) A second wiper
  • 48. What effect is caused by the whimsical nature of the storage medium in oil-can delays?
A) Time stretching
B) Vibrato
C) Pitch scaling
D) Digital looping
  • 49. What was the name of the oil-can delay device sold by Fender?
A) Memory Man
B) DD-2
C) Dimension IV
D) GA-4RE
  • 50. Which company sold the GA-4RE oil-can delay from 1965 to 1967?
A) Gibson
B) Tel-Ray
C) Fender
D) Roland
  • 51. Under what brand did Ray Lubow sell his oil-can delay versions starting in the early sixties?
A) Electro-Harmonix
B) Lexicon
C) Eventide
D) Tel-Ray/Morley
  • 52. What was the name of Ray Lubow's early sixties oil-can product?
A) Dimension IV
B) Memory Man
C) DMX 15-80
D) Ad-n-echo
  • 53. Where was the bucket-brigade device (BBD) developed in 1969?
A) Fender
B) Eventide
C) Gibson
D) Philips
  • 54. What is the name of the notable BBD-based delay released by Electro-Harmonix in 1976?
A) DD-2
B) Boss DM-2
C) Memory Man
D) Dimension IV
  • 55. In what year was the Boss DM-2 solid-state delay released?
A) 1976
B) 1984
C) 1981
D) 1969
  • 56. Where is the digital audio passed through after being converted?
A) An anodized aluminium disc
B) A memory buffer
C) A Leslie speaker
D) An oil-can assembly
  • 57. What is one of the first rack-mounted digital delays from 1971?
A) AMS DMX 15-80
B) Eventide DDL 1745
C) Lexicon PCM42
D) Roland SDE-3000
  • 58. In what year was the AMS DMX 15-80 rack-mount digital delay released?
A) 1971
B) 1984
C) 1976
D) 1978
  • 59. What made units offer more than three seconds of delay time in the 1980s?
A) Bucket-brigade devices improved
B) Tape delay speeds increased
C) Oil-can assemblies became smaller
D) Digital memory became cheaper
  • 60. What was the maximum upgradeable delay time of the TC Electronic 2290 mentioned in the text?
A) 64 seconds
B) 32 seconds
C) 3 seconds
D) 16 seconds
  • 61. What was the name of the first digital delay offered in a pedal format in 1984?
A) Boss DM-2
B) Dimension IV
C) Memory Man
D) Boss DD-2
  • 62. What year was the Paradis Loop Delay created?
A) 1970
B) 1985
C) 1992
D) 2006
  • 63. Until what year did Gibson manufacture the Echoplex Digital Pro?
A) 1970
B) 2006
C) 1999
D) 1992
  • 64. What name did Robert Fripp dub his technology of using very long delay times for solo guitar performance?
A) Loop Delay
B) Haas effect
C) Frippertronics
D) Double-tracking
  • 65. Who was a pioneer of the Echoplex and used it on the album Stormbringer!?
A) Robert Fripp
B) The Edge
C) John Martyn
D) Helmut Haas
  • 66. In what month and year was John Martyn's album Stormbringer! released?
A) January 1992
B) December 2006
C) February 1980
D) February 1970
  • 67. What can be used to manage high levels of feedback that cause the output level to rapidly increase?
A) A BPM synchronizer
B) An equalizer
C) A looper
D) A limiter
  • 68. Short delays of how many milliseconds or less create the Haas effect?
A) 500 ms
B) 100 ms
C) 10 ms
D) 50 ms
  • 69. Which guitarist uses delay while playing arpeggios to create a sustained, synth pad-like background?
A) Robert Fripp
B) John Martyn
C) The Edge
D) Helmut Haas
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