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Morse code. Some examples of how to produce sounds.

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4.64 (16 votes)
3 Apr 2001
Several classes demonstrating how to fill audio buffer and how to produce sound using waveOut* API

This program demonstrates how to use the waveOut APIs to produce sounds of different frequencies. Two classes can play sounds asynchronously (with some differences in implementation), and one show works in plain synchronous mode.

The sample program takes a string you supply, converts it into Morse code, and then plays this code. You can customize the frequency and duration of the sounds produced.

 [Sample Image - 33K]

Using the asynchronous classes, it is possible to change frequency smoothly when sounds are playing, but sound quality is not very good.

This code was tested only on VC++ 6.0 and Windows 98.


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Alexander Fedorov
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Comments and Discussions

GeneralGreat article! Pin
DrABELL16-Sep-09 15:31
professionalDrABELL16-Sep-09 15:31 
GeneralSir, I want to change a existed wav's frequency, can you give me some advice or some code? Thank you. Pin
wangmike51816-Jan-08 3:31
memberwangmike51816-Jan-08 3:31 
Generalmultichannel rather than stereo Pin
walkerjiao2-Dec-03 14:10
memberwalkerjiao2-Dec-03 14:10 
QuestionHow to Store 16 Bit PCM Wave Pin
Maria Jothi5-May-02 19:41
memberMaria Jothi5-May-02 19:41 
GeneralMuch static Pin
Michael S. Scherotter14-May-01 9:58
memberMichael S. Scherotter14-May-01 9:58 
GeneralTimed Event Pin
UkJay13-May-01 13:32
memberUkJay13-May-01 13:32 
GeneralRe: Timed Event Pin
MyGoddess22-Jun-01 2:59
memberMyGoddess22-Jun-01 2:59 
GeneralPhone Tones Pin
22-Jan-01 22:19
suss22-Jan-01 22:19 
GeneralRe: Phone Tones Pin
29-Jan-01 9:50
suss29-Jan-01 9:50 
GeneralRe: Phone Tones Pin
4-Jun-01 15:46
suss4-Jun-01 15:46 
GeneralRe: Phone Tones Pin
Alexandru Savescu27-Nov-01 22:52
memberAlexandru Savescu27-Nov-01 22:52 
GeneralRe: Phone Tones Pin
Anonymous20-May-04 22:35
memberAnonymous20-May-04 22:35 
GeneralRe: Phone Tones Pin
robbor1814-Aug-05 16:43
memberrobbor1814-Aug-05 16:43 

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Posted 21 Jan 2001


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