UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Example URL:
https://translate.google.com

Steps to reproduce the problem:
On Google translate (https://translate.google.com):
1. Type a text or use speech input.
2. Click "Listen" on any part - there is no sound.

On Duolingo (https://www.duolingo.com/)
1. Choose any lesson. Click 'Start'.
2. Task does not sound.
3. Move mouse to words for listen help, also no sound.

What is the expected behavior?
On Google translate:
 - After click "Listen" - words must sounds.

On Duolingo:
 - task must sounds
 - help must sounds

What went wrong?
There is no sound.

Did this work before? Yes 66.0

Is it a problem with Flash or HTML5? N/A

Does this work in other browsers? Yes

Chrome version: 67.0.3396.87  Channel: stable
OS Version: Debian 9.4 (amd64)
Flash Version: 30.0.0.134 and 28.0.0.126

Contents of chrome://gpu: 

Graphics Feature Status
Canvas: Hardware accelerated
CheckerImaging: Disabled
Flash: Hardware accelerated
Flash Stage3D: Hardware accelerated
Flash Stage3D Baseline profile: Hardware accelerated
Compositing: Hardware accelerated
Multiple Raster Threads: Enabled
Native GpuMemoryBuffers: Software only. Hardware acceleration disabled
Rasterization: Software only. Hardware acceleration disabled
Surface Synchronization: Enabled
Video Decode: Hardware accelerated
Viz Service Display Compositor: Disabled
WebGL: Hardware accelerated
WebGL2: Hardware accelerated
Driver Bug Workarounds
adjust_src_dst_region_for_blitframebuffer
clear_uniforms_before_first_program_use
count_all_in_varyings_packing
decode_encode_srgb_for_generatemipmap
disable_framebuffer_cmaa
disable_post_sub_buffers_for_onscreen_surfaces
disable_software_to_accelerated_canvas_upgrade
dont_remove_invariant_for_fragment_input
force_cube_map_positive_x_allocation
force_int_or_srgb_cube_texture_complete
init_texture_max_anisotropy
regenerate_struct_names
remove_invariant_and_centroid_for_essl3
scalarize_vec_and_mat_constructor_args
Problems Detected
Clear uniforms before first program use on all platforms: 124764, 349137
Applied Workarounds: clear_uniforms_before_first_program_use
Mesa drivers in Linux handle varyings without static use incorrectly: 333885
Applied Workarounds: count_all_in_varyings_packing
Linux AMD drivers incorrectly return initial value of 1 for TEXTURE_MAX_ANISOTROPY: 348237
Applied Workarounds: init_texture_max_anisotropy
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
Linux AMD drivers handle struct scopes incorrectly: 403957
Applied Workarounds: regenerate_struct_names
Linux ATI drivers crash on binding incomplete cube map texture to FBO: 518889
Applied Workarounds: force_cube_map_positive_x_allocation
Use GL_INTEL_framebuffer_CMAA on ChromeOS: 535198
Applied Workarounds: disable_framebuffer_cmaa
Disable partial swaps on Mesa drivers (detected with GL_VERSION): 339493
Applied Workarounds: disable_post_sub_buffers_for_onscreen_surfaces
Decode and encode before generateMipmap for srgb format textures on os except macosx: 634519
Applied Workarounds: decode_encode_srgb_for_generatemipmap
adjust src/dst region if blitting pixels outside read framebuffer on Linux AMD: 664740
Applied Workarounds: adjust_src_dst_region_for_blitframebuffer
AMD drivers in Linux require invariant qualifier to match between vertex and fragment shaders: 659326, 639760
Applied Workarounds: remove_invariant_and_centroid_for_essl3, dont_remove_invariant_for_fragment_input
Disable KHR_blend_equation_advanced until cc shaders are updated: 661715
Applied Workarounds: disable(GL_KHR_blend_equation_advanced), disable(GL_KHR_blend_equation_advanced_coherent)
Decode and Encode before generateMipmap for srgb format textures on Linux AMD: 634519
Applied Workarounds: decode_encode_srgb_for_generatemipmap
Software to Accelerated canvas update breaks Linux AMD: 710029
Applied Workarounds: disable_software_to_accelerated_canvas_upgrade
Force integer or srgb cube map texture complete on Linux AMD: 712117
Applied Workarounds: force_int_or_srgb_cube_texture_complete
Don't expose disjoint_timer_query extensions to WebGL: 808744
Native GpuMemoryBuffers have been disabled, either via about:flags or command line.
Disabled Features: native_gpu_memory_buffers
Viz service display compositor is not enabled by default.
Disabled Features: viz_display_compositor
Checker-imaging has been disabled via finch trial or the command line.
Disabled Features: checker_imaging
Version Information
Data exported	2018-07-13T16:25:49.020Z
Chrome version	Chrome/67.0.3396.87
Operating system	Linux 4.9.0-6-amd64
Software rendering list URL	https://chromium.googlesource.com/chromium/src/+/878cd31214ac27a3996927cd5c9c138b10c9fc8d/gpu/config/software_rendering_list.json
Driver bug list URL	https://chromium.googlesource.com/chromium/src/+/878cd31214ac27a3996927cd5c9c138b10c9fc8d/gpu/config/gpu_driver_bug_list.json
ANGLE commit id	unknown hash
2D graphics backend	Skia/67 78b60f4ff13b83da98ae2bca85aaef0a98b61098-
Command Line	/usr/lib/chromium/chromium --show-component-extension-options --ignore-gpu-blacklist --no-default-browser-check --disable-pings --media-router=0 --enable-remote-extensions --ppapi-flash-path=/usr/lib/pepperflashplugin-nonfree/libpepflashplayer.so --ppapi-flash-version=30.0.0.134 --flag-switches-begin --flag-switches-end
Driver Information
Initialization time	1817
In-process GPU	false
Passthrough Command Decoder	false
Direct Composition	false
Supports overlays	false
Sandboxed	false
GPU0	VENDOR = 0x1002, DEVICE= 0x9616 *ACTIVE*
Optimus	false
AMD switchable	false
Driver vendor	Mesa
Driver version	13.0.6
Driver date	
Pixel shader version	1.30
Vertex shader version	1.30
Max. MSAA samples	8
Machine model name	
Machine model version	
GL_VENDOR	X.Org
GL_RENDERER	Gallium 0.4 on AMD RS780 (DRM 2.49.0 / 4.9.0-6-amd64, LLVM 3.9.1)
GL_VERSION	3.0 Mesa 13.0.6
GL_EXTENSIONS	GL_AMD_conservative_depth GL_AMD_draw_buffers_blend GL_AMD_performance_monitor GL_AMD_pinned_memory GL_AMD_shader_stencil_export GL_AMD_shader_trinary_minmax GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_APPLE_packed_pixels GL_APPLE_vertex_array_object GL_ARB_ES2_compatibility GL_ARB_ES3_compatibility GL_ARB_arrays_of_arrays GL_ARB_base_instance GL_ARB_blend_func_extended GL_ARB_buffer_storage GL_ARB_clear_buffer_object GL_ARB_clear_texture GL_ARB_clip_control GL_ARB_color_buffer_float GL_ARB_compressed_texture_pixel_storage GL_ARB_conditional_render_inverted GL_ARB_conservative_depth GL_ARB_copy_buffer GL_ARB_copy_image GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_draw_buffers GL_ARB_draw_buffers_blend GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_explicit_attrib_location GL_ARB_explicit_uniform_location GL_ARB_fragment_coord_conventions GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_framebuffer_no_attachments GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_get_program_binary GL_ARB_get_texture_sub_image GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_internalformat_query2 GL_ARB_invalidate_subdata GL_ARB_map_buffer_alignment GL_ARB_map_buffer_range GL_ARB_multi_bind GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_occlusion_query2 GL_ARB_pipeline_statistics_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_program_interface_query GL_ARB_provoking_vertex GL_ARB_robustness GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_seamless_cube_map GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_objects GL_ARB_shader_stencil_export GL_ARB_shader_texture_image_samples GL_ARB_shader_texture_lod GL_ARB_shading_language_100 GL_ARB_shading_language_420pack GL_ARB_shading_language_packing GL_ARB_shadow GL_ARB_stencil_texturing GL_ARB_sync GL_ARB_texture_barrier GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_float GL_ARB_texture_mirror_clamp_to_edge GL_ARB_texture_mirrored_repeat GL_ARB_texture_multisample GL_ARB_texture_non_power_of_two GL_ARB_texture_query_levels GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_texture_rgb10_a2ui GL_ARB_texture_stencil8 GL_ARB_texture_storage GL_ARB_texture_storage_multisample GL_ARB_texture_swizzle GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_transform_feedback_instanced GL_ARB_transpose_matrix GL_ARB_uniform_buffer_object GL_ARB_vertex_array_bgra GL_ARB_vertex_array_object GL_ARB_vertex_attrib_binding GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_vertex_type_10f_11f_11f_rev GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_window_pos GL_ATI_blend_equation_separate GL_ATI_draw_buffers GL_ATI_fragment_shader GL_ATI_meminfo GL_ATI_separate_stencil GL_ATI_texture_compression_3dc GL_ATI_texture_env_combine3 GL_ATI_texture_float GL_ATI_texture_mirror_once GL_EXT_abgr GL_EXT_bgra GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_compiled_vertex_array GL_EXT_copy_texture GL_EXT_draw_buffers2 GL_EXT_draw_instanced GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_gpu_program_parameters GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_packed_pixels GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_polygon_offset GL_EXT_polygon_offset_clamp GL_EXT_provoking_vertex GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_specular_color GL_EXT_shader_integer_mix GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_subtexture GL_EXT_texture GL_EXT_texture3D GL_EXT_texture_array GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_latc GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc GL_EXT_texture_cube_map GL_EXT_texture_edge_clamp GL_EXT_texture_env_add GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp GL_EXT_texture_object GL_EXT_texture_rectangle GL_EXT_texture_sRGB GL_EXT_texture_sRGB_decode GL_EXT_texture_shared_exponent GL_EXT_texture_snorm GL_EXT_texture_swizzle GL_EXT_timer_query GL_EXT_transform_feedback GL_EXT_vertex_array GL_EXT_vertex_array_bgra GL_IBM_multimode_draw_arrays GL_IBM_rasterpos_clip GL_IBM_texture_mirrored_repeat GL_INGR_blend_func_separate GL_KHR_context_flush_control GL_KHR_debug GL_MESA_pack_invert GL_MESA_shader_integer_functions GL_MESA_texture_signed_rgba GL_MESA_window_pos GL_NVX_gpu_memory_info GL_NV_blend_square GL_NV_conditional_render GL_NV_depth_clamp GL_NV_fog_distance GL_NV_light_max_exponent GL_NV_packed_depth_stencil GL_NV_primitive_restart GL_NV_texgen_reflection GL_NV_texture_barrier GL_NV_texture_env_combine4 GL_NV_texture_rectangle GL_OES_EGL_image GL_OES_read_format GL_S3_s3tc GL_SGIS_generate_mipmap GL_SGIS_texture_border_clamp GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod GL_SUN_multi_draw_arrays
Disabled Extensions	GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent
Disabled WebGL Extensions	EXT_disjoint_timer_query EXT_disjoint_timer_query_webgl2
Window system binding vendor	SGI
Window system binding version	1.4
Window system binding extensions	GLX_ARB_create_context GLX_ARB_create_context_profile GLX_ARB_create_context_robustness GLX_ARB_fbconfig_float GLX_ARB_framebuffer_sRGB GLX_ARB_multisample GLX_EXT_create_context_es_profile GLX_EXT_create_context_es2_profile GLX_EXT_fbconfig_packed_float GLX_EXT_framebuffer_sRGB GLX_EXT_import_context GLX_EXT_libglvnd GLX_EXT_texture_from_pixmap GLX_EXT_visual_info GLX_EXT_visual_rating GLX_MESA_copy_sub_buffer GLX_OML_swap_method GLX_SGI_make_current_read GLX_SGI_swap_control GLX_SGIS_multisample GLX_SGIX_fbconfig GLX_SGIX_pbuffer GLX_SGIX_visual_select_group GLX_INTEL_swap_event
Window manager	KWin
XDG_CURRENT_DESKTOP	KDE
Compositing manager	Yes
Direct rendering	Yes
Reset notification strategy	0x8261
GPU process crash count	0
System visual ID	33
RGBA visual ID	97
Compositor Information
Tile Update Mode	One-copy
Partial Raster	Enabled
GpuMemoryBuffers Status
ATC	Software only
ATCIA	Software only
DXT1	Software only
DXT5	Software only
ETC1	Software only
R_8	Software only
R_16	Software only
RG_88	Software only
BGR_565	Software only
RGBA_4444	Software only
RGBX_8888	Software only
RGBA_8888	Software only
BGRX_8888	Software only
BGRX_1010102	Software only
RGBX_1010102	Software only
BGRA_8888	Software only
RGBA_F16	Software only
YVU_420	Software only
YUV_420_BIPLANAR	Software only
UYVY_422	Software only
Display(s) Information
Info	Display[8564096068747346] bounds=[0,0 1280x1024], workarea=[0,0 1280x986], scale=1, external.
Color space information	{primaries:INVALID, transfer:INVALID, matrix:INVALID, range:INVALID}
Bits per color component	8
Bits per pixel	24
Video Acceleration Information
Log Messages
[22676:22676:0713/185434.254434:ERROR:sandbox_linux.cc(378)] : InitializeSandbox() called with multiple threads in process gpu-process.
[22676:22676:0713/185727.816291:WARNING:x11_util.cc(1362)] : X error received: serial 45268, error_code 9 (BadDrawable (invalid Pixmap or Window parameter)), request_code 154, minor_code 4 (DRI2DestroyDrawable)
[22676:22676:0713/185727.816388:WARNING:x11_util.cc(1362)] : X error received: serial 45269, error_code 3 (BadWindow (invalid Window parameter)), request_code 4, minor_code 0 (X_DestroyWindow)
[22676:22676:0713/185929.429386:WARNING:x11_util.cc(1362)] : X error received: serial 65892, error_code 9 (BadDrawable (invalid Pixmap or Window parameter)), request_code 154, minor_code 4 (DRI2DestroyDrawable)
[22676:22676:0713/185929.429494:WARNING:x11_util.cc(1362)] : X error received: serial 65893, error_code 3 (BadWindow (invalid Window parameter)), request_code 4, minor_code 0 (X_DestroyWindow)
[22676:22676:0713/190007.034537:WARNING:x11_util.cc(1362)] : X error received: serial 76341, error_code 9 (BadDrawable (invalid Pixmap or Window parameter)), request_code 154, minor_code 4 (DRI2DestroyDrawable)
[22676:22676:0713/190007.034624:WARNING:x11_util.cc(1362)] : X error received: serial 76342, error_code 3 (BadWindow (invalid Window parameter)), request_code 4, minor_code 0 (X_DestroyWindow)
[22676:22676:0713/190428.712047:ERROR:gles2_cmd_decoder.cc(18055)] : [.DisplayCompositor-0x26e988f24800]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name
[22676:22676:0713/190428.712438:ERROR:gles2_cmd_decoder.cc(18055)] : [.DisplayCompositor-0x26e988f24800]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name
[22676:22676:0713/190428.712601:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/190428.712767:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/190428.726639:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/190428.726801:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/190428.745594:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/190428.746434:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/190428.760070:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/190428.767299:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/190428.797956:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/190428.798465:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/190428.824181:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/190428.824849:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/190428.841883:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/190428.842327:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/192315.960176:ERROR:gles2_cmd_decoder.cc(18055)] : [.DisplayCompositor-0x26e988f24800]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name
[22676:22676:0713/192315.960605:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/192315.960849:ERROR:gles2_cmd_decoder.cc(18055)] : [.DisplayCompositor-0x26e988f24800]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name
[22676:22676:0713/192315.961327:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/192315.961703:ERROR:gles2_cmd_decoder.cc(18055)] : [.DisplayCompositor-0x26e988f24800]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name
[22676:22676:0713/192315.961966:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/192316.005822:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/192316.005911:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[22676:22676:0713/192316.005933:ERROR:gles2_cmd_decoder.cc(10173)] : [.DisplayCompositor-0x26e988f24800]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.

I know Duolingo uses FlashPlayer.
Microphone works on both Google translate and Duolingo (using flash).

In other browsers this sites produce sounds.
Sound had worked before I upgraded Chromium from ver 66.0 to ver. 67.0.
Now I can downgrade only to ver. 62.0. I have tried it and sound works(!) on it.

On other sites in Chromium 67.0 sound works (e.g. on youtube, http://www.y8.com/games - I tried flash games to check).