Questions tagged [music]
The music tag has no usage guidance.
42 questions
0
votes
1
answer
45
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Need help with Frequency in pset3. Been stuck for a while
So to start off, I'm going to include my code at the end of the question.
Basically, I've built this function a few times now and I'm kind of at my wits end here.
My code uses a for loop to iterate ...
- 1
0
votes
2
answers
45
views
Pset3, Issue with duration in helpers. Can't compile, strange error message
Back again, this time trying to figure out pset3. I think everone is familiar with the pset, but for anyone who isn't, I'm trying to convert a fraction (1/8, 1/4, 1/2, etc) to a number of eighths.
...
0
votes
1
answer
55
views
CS50 Pset 3 Music errors - please help! :(
I really don't know what I am doing wrong. I think I've mad a mistake in frequency.
Check50 says:
:( note C3 has frequency 131
expected "131", not "220"
:( note Bb5 has frequency 932
...
user22838
0
votes
1
answer
144
views
Please help!! I am facing problem in pset3
I am facing problem in understanding the meaning of------
helpers.c:90:3: error: expected identifier or '('
Please guide me in correcting this error. Thanks a lot in advance.
- 11
0
votes
1
answer
64
views
Music frequency accidental and note issue
My music program currently returns values for all notes and accidentals that equals the frequency of note A in that octave, but I cannot make the frequency output change for different notes or ...
- 3
0
votes
1
answer
83
views
PSET3: Music, getting this error 'expected exit code 0, not 1'
Please I'm getting this error when I try to submit pset3.
expected exit code 0, not 1
My code for synthesizing works fine and I'm able to play wav files from text files.
I'm not sure if it's ok ...
- 103
0
votes
1
answer
35
views
music pset - semantic error
I implemented the music program in pc and I omitted the cs50.h library since I work offline most of the time. Everything's fine actually my code did not give me error messages and it compiled ...
- 3
0
votes
1
answer
82
views
Calculate n (semitones) for frequency in pset3
I'm having a bit of a hard time trying to calculate the value of n(the number of semitones from A4).
I'm currently using the following formula:
if (octave > A4_OCTAVE)
{
n = (octave - ...
- 3
0
votes
1
answer
183
views
pset3 check50 error message: " :( bday.txt is correct "
In pset3 (music), while checking my version of helpers.c and bday.txt for correctness, I get the error message
:( bday.txt is correct - Expected 25 lines in bday.txt, but yours has
0
As far as I ...
- 1,009
0
votes
1
answer
39
views
Pest 3 Music frequency
could you help me to look at my codes, all my output frequency turn out 440. I am stuck in this for a week.
int accidental = 0;
int octave;
if (strlen(note) == 3 )
{
octave = atoi(¬e[2]);
...
- 13
0
votes
1
answer
102
views
check50 cs50/2018/x/music Failing
https://cs50.me/submit50/results/ramynasr/2da60275db4805137478dc9b9dd4d649c3484355
I keep getting:
:( helpers.c compiles
expected exit code 0, not 1
Log
running clang -std=c11 -o is_rest is_rest....
- 101
0
votes
1
answer
121
views
How to "make notes" file in pset3 ?
This is a really basic question, but I can't "make notes" in pset 3 . I don't know what is wrong. Here is what I do:
I tried the following, but maybe it's wrong because "notes" is not a directory ...
- 7
-1
votes
1
answer
2k
views
Incompatible Integer to Pointer Conversion
int duration(string fraction)
{
int numerator;
int denominator;
int factor;
// The factor will store the value of the number which the fraction needs to be multiplied for its ...
- 19
0
votes
1
answer
286
views
pset3 music frequency question
I am working on pset3 music frequency. I struggled with finding a pattern of frequencies for different notes, so instead, i created two arrays one with all possible note (C,D,E,F,G,A,B) and another ...
- 27
0
votes
1
answer
399
views
is_rest() and duration() bugs in helpers.c of Pset3 Music
// Helper functions for music
#include <stdio.h>
#include <cs50.h>
#include <string.h>
#include <math.h>
#include "helpers.h"
// Converts a fraction formatted as X/Y to ...
- 3
0
votes
1
answer
642
views
pset3 music - value inf is outside the range of representable values of type 'int'
When I ran my code through the compiler for notes.c, I got the following error:
helpers.c:88:26: runtime error: value inf is outside the range of representable values of type 'int'. It then returned ...
- 21
0
votes
2
answers
72
views
pset3 music - unsure what is wrong with my variables
I'm trying to shift the octave of the note and calculate its hertz, but somehow got error messages saying that my variables are unused. How should I fix this problem?
My code:
// Calculates ...
- 9
0
votes
1
answer
111
views
Pset 3 Music. Brute forced the frequency function, no syntax errors but only getting 0's for all my answers? Any Ideas?
I know my code is not clean at all. For the frequency function I just brute forced it by just starting with "what if there were only A's?" and copied that for the rest of the letters. Naturally messy ...
0
votes
1
answer
282
views
PSET3 Music problem: \377
I've finished pset3 - Music, it compiles and runs pretty well, but a strange bug happens in frequency function. If a note value contains either a sharp # or a flat b, the value of char semitone gets ...
0
votes
2
answers
49
views
Returning an int always returns 0
For music, check50 always returns 0.
Here's my code:
int duration(string fraction)
{
int numer = fraction[0] - '0';
int denom = fraction[2] - '0';
int result = ((numer / denom) * 8);
...
0
votes
1
answer
68
views
please help! I've been trying to find out whats the problem in this code for a very long time now... its not even compliling .. #pset3 cs50 #music
please help! I've been trying to find out whats the problem in this code for a very long time now... its not even compliling .. #pset3 cs50 #music
// Helper functions for music
#include <c s50.h&...
- 50
0
votes
1
answer
86
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PSET3 - MUSIC - check50 not recognising enharmonics
My code uses the minor scale pattern to calculate semitone distances and thus, frequencies of each note, and the "produces all correct notes for octaves 3-5" passes but fails for Ab3 and Bb5. I ...
- 3
0
votes
1
answer
127
views
Pset3 - Music: Unused parameters and control reaches end of non-void function errors
I have tried and googled everything, but I cannot seem to fix these mysterious errors. Within my helpers.c file, it is saying that I haven't used any of the parameters although I've used all of them.
...
- 15
0
votes
2
answers
133
views
pset3 frequency not calculating correctly or adjusting for octaves
Can someone please look at my helpers.c code for pset3? I worked a lot on this and I am stuck. 'wavelength' (which is frequency) doesn't calculate correctly within octave 4, and my code to add or ...
- 17
0
votes
1
answer
131
views
headers.c in music clang: error: linker command failed
it looks like my file compiles but it doesn't work correctly, and I get this msg:
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Any help much appreciated.
// ...
- 17
0
votes
1
answer
226
views
pset3/music/helpers.c - "no makefile found"
This is probably a very silly question with a very simple answer, but it has been torturing me for several days now. I want to try to compile notes.c and synthesize.c to see if the code I wrote in ...
0
votes
1
answer
107
views
Pset3 - 'Error Loading Audio File'
Whenever I attempt to synthesize a new .wav file, the notes come out extremely long (over 1:30 each when played in windows media player) and my .wav file is over 200 MB when inputting the notes to ...
- 5
0
votes
1
answer
27
views
Why are these if-else statements not letting my program compile?
I was wondering what is wrong with these if else statements because this program is not compiling. Any information would be appreciated and any advice please.
#include <cs50.h>
#include <...
0
votes
1
answer
839
views
Pset3 Music - Issues with bool is_rest function
bool is_rest(string s)
{
if (strcmp(s, ""))
{
return 0;
}
else
{
return 1;
}
}
I'm having some very strange problems with the bool is_rest function. The code I have actually ...
user21490
0
votes
1
answer
81
views
Pset3: Music - how am I supposed to get pow() to parse 1/12ths?
I've been stuck on this for what feels like hours, but I simply don't understand how to get the pow() function to properly deal with n twelfths of 2
I've tried this
{
double base_hz = 440.00;
...
user21490
0
votes
1
answer
219
views
is my implementation of is_rest correct?
I don't know how to check this function's correctness, but when I compare my code to other people I seem to have the idea right. Can someone tell me the correct implementation of this code?
// ...
- 11
0
votes
1
answer
311
views
Pset3/Music can't check until a frown turns upside down
i got this message when i tried to check50 of music problem "can't check until a frown turns upside down", i couldn't find what is cause of the problem, so i'll be thankful if someone give me a hand
...
- 7
0
votes
1
answer
403
views
CS50 pset3 music - EOF segmentation fault
I've compiled notes and synthesize using cmd make without any errors. running notes works just fine but when I run synthesize, it gives a segmentation error when I pass EOF command (ctr+D). I've gone ...
0
votes
3
answers
2k
views
Pset3 music - load of null pointer of type 'char'
So I just finished up pset3 and when I run checks for correctness and style everything comes up good. The only issue I seem to be having is if I go to manually test with ./synthesize test.wav then ...
0
votes
1
answer
223
views
My music program: frequency returning zeros
// Calculates frequency (in Hz) of a note
int frequency(string note)
{ int n,r,a;
double oct, z;
float x = 0.0;
float y = 0.0;
char t;
t=0;
a = 0;r = 0;
n = strlen (note)...
- 4
0
votes
1
answer
159
views
Pset3 Music - "unused parameter" and "reaching end of non-void function"
I've been working on my music code for quite some time now, and keep running into the same issue. Whenever I try to compile my code, I get "unused parameter" and "control reaches end of non-void ...
0
votes
1
answer
333
views
Music: Error loading audio file
I have finished Pset 3 with no issues compiling or any issues with check50. However, when I try to play the .wav file that I have generated using ./synthesize jeopardy.wav < songs/jeopardy.txt, the ...
0
votes
1
answer
508
views
Problem with pow() function, int frequency, helpers.c, pset3, music
I'm not getting the correct frequencies. When I execute ./notes, C4 through G#4 all return 220, and A4 through B4 return 440.
I've determined that the problem must be with pow(), I just don't know ...
- 3
0
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1
answer
92
views
the code always returns 1 and also when i compile it, there is a long message
>
>
>
> int frequency(string note)
{
char n = note[0];
//defines the octave of the note
char o = note[strlen(note) - 1];
//checks if the note is within ...
0
votes
2
answers
253
views
signed integer overflow
I have condition to give me Hz of the octave but I got an error 51:16: runtime error: signed integer overflow: 1845493760 * 2 cannot be represented in type 'int' for line
for (int j = 0; 4 + j < ...
- 19
0
votes
1
answer
2k
views
control reaches end of non-void function
I have problem with my code (I guess).
I have got the control reaches end of non-void function error even though my ifs (i think so ;) ) are covering all of the possibilities.
Please have a look:
...
- 19
2
votes
1
answer
844
views
Pset3 Helpers.c Frequency Not Working
Right now I am working on Pset3 with Music. I'm focusing on getting the frequency (in Hz) of all the octaves of A. I am including accidentals in my work as well.
The problem is that A4 returns 449 ...
- 157