Problem with append() and missing frames about pydub HOT 7 CLOSED

Would you mind linking the file in question along with some code to reproduce the issue?

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@nratter just following up since the holidays are a busy time for many. Are you able to share the file in question along with some sample code?

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I'm having the same issue. I'm trying to import a list of songs and then crossfade each of them together into one continuous mix. But when I run the code, I get the TooManyMissingFrames Exception.

from pydub import AudioSegment

songs = [
AudioSegment.from_mp3("Bang.mp3"),
AudioSegment.from_mp3("Morning.mp3"),
AudioSegment.from_mp3("Proxy.mp3"),
AudioSegment.from_mp3("Ode.mp3"),
AudioSegment.from_mp3("Above.mp3"),
AudioSegment.from_mp3("Cuba.mp3"),
AudioSegment.from_mp3("Born.mp3"),
AudioSegment.from_mp3("Backlash.mp3"),
AudioSegment.from_mp3("Mammoth.mp3"),
AudioSegment.from_mp3("waves.mp3"),
]

continuousSong = AudioSegment.empty()

for song in songs:
print song
temp = AudioSegment.empty()
temp = continuousSong.append(song, crossfade=20000)
continuousSong = AudioSegment.empty()
continuousSong = temp
print continuousSong.duration_seconds

print continuousSong.duration_seconds

continuousSong.export("test5.mp3", format="mp3", bitrate="256k")

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Which line does the exception happen on? Would you be able to share the audio files needed to reproduce the issue?

On Wed, Jun 10, 2015 at 10:45 PM, Pranil Vora [email protected]
wrote:

I'm having the same issue. I'm trying to import a bunch of songs and then crossfade them all together into one continuous mix. But everytime I run the code, I get the TooManyMissingFrames Exception.
from pydub import AudioSegment
songs = [
AudioSegment.from_mp3("Bang.mp3"),
AudioSegment.from_mp3("Morning.mp3"),
AudioSegment.from_mp3("Proxy.mp3"),
AudioSegment.from_mp3("Ode.mp3"),
AudioSegment.from_mp3("Above.mp3"),
AudioSegment.from_mp3("Cuba.mp3"),
AudioSegment.from_mp3("Born.mp3"),
AudioSegment.from_mp3("Backlash.mp3"),
AudioSegment.from_mp3("Mammoth.mp3"),
AudioSegment.from_mp3("waves.mp3"),
]
continuousSong = AudioSegment.empty()
for song in songs:
print song
temp = AudioSegment.empty()
temp = continuousSong.append(song, crossfade=20000)
continuousSong = AudioSegment.empty()
continuousSong = temp
print continuousSong.duration_seconds
print continuousSong.duration_seconds

continuousSong.export("test5.mp3", format="mp3", bitrate="256k")

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#82 (comment)

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I have the same problem. I tried with multiple files and for me the problem seems to be using the following code:

finalsong = AudioSegment.empty()
finalsong.append(song)

I then replaced append with the + operator:

finalsong = AudioSegment.empty()
finalsong = finalsong + song

and then it worked. Also using append after that first + operation was no problem.

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I think this is the same as #83 - the assertion error happens because the frame rates don't divide evenly.

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Same problem with silence. This code wont work (it should append 3s silence at the beginning):

dst_full = "mymp3.mp3"
fhandle, tmp_name = tempfile.mkstemp(suffix='.tmp.mp3')
os.close(fhandle)
os.chmod(tmp_name, 0777)
final = AudioSegment.silent(float(3 * 1000))
final = final.append(AudioSegment.from_mp3(dst_full))
out_f = open(tmp_name, 'wb')
final.export(out_f, format='mp3')
out_f.close()
os.rename(tmp_name, dst_full)

and if you change
final = final.append(AudioSegment.from_mp3(dst_full))
to
final = final + AudioSegment.from_mp3(dst_full)

it works

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