1, 2 or 3 output files

app.py

@@ -56,7 +56,7 @@ class Tango:
             latents = self.model.inference([prompt], self.scheduler, steps, guidance, samples, disable_progress = disable_progress)
             mel = self.vae.decode_first_stage(latents)
             wave = self.vae.decode_to_waveform(mel)
-        return wave[0]
+        return wave
     
     def generate_for_batch(self, prompts, steps = 200, guidance = 3, samples = 1, batch_size = 8, disable_progress = True):
         # Generate audio for a list of prompt strings
@@ -81,26 +81,33 @@ tango.model.to(device_type)
 
 def check(
     prompt,
+    output_number,
     steps,
     guidance
 ):
     if prompt is None or prompt == "":
         raise gr.Error("Please provide a prompt input.")
+    if not output_number in [1, 2, 3]:
+        raise gr.Error("Please ask for 1, 2 or 3 output files.")
 
 def text2audio(
     prompt,
+    output_number,
     steps,
     guidance
 ):
-    output_wave = tango.generate(prompt, steps, guidance)
-    return gr.make_waveform((16000, output_wave))
+    output_wave = tango.generate(prompt, steps, guidance, output_number)
+    output_wave_1 = gr.make_waveform((16000, output_wave[0]))
+    output_wave_2 = gr.make_waveform((16000, output_wave[1])) if (2 <= output_number) else None
+    output_wave_3 = gr.make_waveform((16000, output_wave[2])) if (output_number == 3) else None
+    return [output_wave_1, output_wave_2, output_wave_3]
 
 # Gradio interface
 with gr.Blocks() as interface:
     gr.Markdown("""
         <p style="text-align: center;">
         <b><big><big><big>Text-to-Audio</big></big></big></b>
-        <br/>Generates an audio file, freely, without account, without watermark, that you can download.
+        <br/>Generates 10 second audio file, freely, without account, without watermark, that you can download.
         </p>
         <br/>
         <br/>
@@ -116,45 +123,76 @@ with gr.Blocks() as interface:
         ⚖️ You can use, modify and share the generated sounds but not for commercial uses.
         """
     )
-    input_text = gr.Textbox(label = "Prompt", value = "Snort of a horse", lines = 2, autofocus = True)
+    input_text = gr.Textbox(label = "Prompt", value = "Snort of a horse, best quality", lines = 2, autofocus = True)
     with gr.Accordion("Advanced options", open = False):
+        output_number = gr.Slider(label = "Number of generations", info = "1, 2 or 3 output files", minimum = 1, maximum = 3, value = 1, step = 1, interactive = True)
         denoising_steps = gr.Slider(label = "Steps", info = "lower=faster & variant, higher=audio quality & similar", minimum = 100, maximum = 200, value = 100, step = 1, interactive = True)
         guidance_scale = gr.Slider(label = "Guidance Scale", info = "lower=audio quality, higher=follow the prompt", minimum = 1, maximum = 10, value = 3, step = 0.1, interactive = True)
 
     submit = gr.Button("Generate 🚀", variant = "primary")
 
-    output_audio = gr.Audio(label = "Generated Audio")
+    output_audio_1 = gr.Audio(label = "Generated Audio #1/3")
+    output_audio_2 = gr.Audio(label = "Generated Audio #2/3")
+    output_audio_3 = gr.Audio(label = "Generated Audio #3/3")
 
     submit.click(fn = check, inputs = [
         input_text,
+        output_number,
         denoising_steps,
         guidance_scale
     ], outputs = [], queue = False, show_progress = False).success(fn = text2audio, inputs = [
         input_text,
+        output_number,
         denoising_steps,
         guidance_scale
     ], outputs = [
-        output_audio
+        output_audio_1,
+        output_audio_2,
+        output_audio_3
     ], scroll_to_output = True)
 
     gr.Examples(
         fn = text2audio,
 	    inputs = [
             input_text,
+            output_number,
             denoising_steps,
             guidance_scale
         ],
 	    outputs = [
-            output_audio
+            output_audio_1,
+            output_audio_2,
+            output_audio_3
         ],
         examples = [
-                ["A hammer is hitting a wooden surface", 100, 3],
-                ["Peaceful and calming ambient music with singing bowl and other instruments.", 100, 3],
-                ["A man is speaking in a small room.", 100, 3],
-                ["A female is speaking followed by footstep sound", 100, 3],
-                ["Wooden table tapping sound followed by water pouring sound.", 100, 3],
+                ["A hammer is hitting a wooden surface", 1, 100, 3],
+                ["Peaceful and calming ambient music with singing bowl and other instruments.", 1, 100, 3],
+                ["A man is speaking in a small room.", 1, 100, 3],
+                ["A female is speaking followed by footstep sound", 1, 100, 3],
+                ["Wooden table tapping sound followed by water pouring sound.", 1, 100, 3],
             ],
         cache_examples = "lazy",
     )
+    
+    gr.Markdown(
+        """
+        ## How to prompt your sound
+        You can use round brackets to increase the importance of a part:
+        ```
+        Peaceful and (calming) ambient music with singing bowl and other instruments
+        ```
+        You can use several levels of round brackets to even more increase the importance of a part:
+        ```
+        (Peaceful) and ((calming)) ambient music with singing bowl and other instruments
+        ```
+        You can use number instead of several round brackets:
+        ```
+        (Peaceful:1.5) and ((calming)) ambient music with singing bowl and other instruments
+        ```
+        You can do the same thing with square brackets to decrease the importance of a part:
+        ```
+        (Peaceful:1.5) and ((calming)) ambient music with [singing:2] bowl and other instruments
+        """
+    )
         
     interface.queue(10).launch()