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