Comments (5)
data_sample_rate describes the amount of samples used to represent 1 second of audio. cd-standard is 44100 for example. data_slice_len refers to the reception size of the model. e.g. with a data_slice_len of 44100 and s data_sample_rate of 44100 you could let the model learn to generate one second of 44100hz audio.
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Sure, you should be able to modify the WaveGAN generator to support 8 second samples by increasing the starting dim_mul
variable:
https://github.com/chrisdonahue/wavegan/blob/master/wavegan.py#L43
Alternatively you can just halve whatever sample rate you're working with using --data_sample_rate
to go from 4 to 8 second clips.
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Hi,
I have a modell which I trained with a SLICE_LEN
of only 16384
for test purposes.
So this modell is capable of generating ~1 second at a sample rate of 16000.
I increased the dim_mul
from 16 to 32, 64, 128, 256...
without noticing a difference in the length.
Halving the sample rate obviously worked to go from ~1 sec up to ~2 sec clips.
Could you give me clearer insight on how to set the dim_mul
to achieve longer audio? Since I'm not quite sure what this parameter actually manipulates I'm also wondering how this will affect the quality of the generated audio.
Thanks
from wavegan.
Sorry for the late reply. dim_mul
will not change the length of the audio. However, for longer slices (as specified by the data_slice_len
parameter), you will likely need to reduce the value of dim_mul
or train_batch_size
to ensure that the model still fits into memory.
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Hi, so under this context, what's the difference between data_sample_rate and data_slice_len?
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