In this lab, you will add vibrato to your voice instrument from assignment #1.  You will also implement an FM trumpet and clarinet with vibrato. Then you will plug your designs into the score you wrote last week.

1. Modify your voice instrument from Assignment #1 to include vibrato.
• Use a linseg to change the rate from 1 Hertz to 6 Hertz.
• Set the vibrato width to 1.5% of the fundamental frequency.
2. Compile it with wavetable.sco and play vibrato.wav.

FM Clarinet

1. Make an FM clarinet based on John Chowning's FM design.
• The normal range of the Bb clarinet is from D3 to Eb6.

• You can get the basic FM code from the designs shown in the FM Synthesis2 notes. Use the FM clarinet parameters on slide #4.
2. Put an amplitude envelope on the index to fade it from 0 to 4 and back to 0 again (multiply the amplitude envelope by the index.)
3. Add the same vibrato to the clarinet that you used for the voice.
4. Compile fm_clarinet.wav and play notes on your clarinet in the range from D3 to Eb6 (e.g., D3, D4, D5, D6).
5. You might want to adjust your vibrato, because the clarinet usually uses less vibrato than the voice.

FM Synthesis Trumpet

1. Make a new instrument design for an FM trumpet.
• The normal range of the Bb trumpet is from E3 to C6.

• The basic FM code is shown in the the FM Synthesis2 notes. Use the FM trumpet parameters on slide #3.
2. Put an amplitude envelope on the index to fade it from 0 to 5 and back to 0 again (multiply the amplitude envelope by the index.)
3. Add the same FM vibrato to the trumpet that you used for the clarinet and the voice.
4. Compile fm_trumpet.wav and play notes on your trumpet in the range from E3 to C6 (e.g., E3, E4, E5, C6).
5. You might want to adjust your vibrato, because the trumpet usually uses less vibrato than the voice.

What to hand in:

1. Email our TA Simon Lui (virtuoso@cs.ust.hk) the following 3 soundfiles as attachments:
• the voice: vibrato.wav
• the clarinet: fm_clarinet.wav
• the trumpet: fm_trumpet.wav
2. Due date: Thu 6 April 2006