Change GTA mel padding value

Signed-off-by: begeekmyfriend <[email protected]>

hparams.py

@@ -52,7 +52,7 @@
 voc_total_steps = 800_000           # Total number of training steps
 voc_test_samples = 50               # How many unseen samples to put aside for testing
 voc_pad = 2                         # this will pad the input so that the resnet can 'see' wider than input length
-voc_pad_val = -12                   # this is the minimum of mel features
+voc_pad_val = -4                    # this is the minimum of mel features
 voc_seq_len = hop_length * 5        # must be a multiple of hop_length
 
 # Generating / Synthesizing